Geno read 126 pages in 3 hours. He read the same number of pages each hour for the first 2 hours. Geno read 1.5 times as many pages during the third hour as he did during the first hour.

Answers

Answer 1

Geno read 36 pages during the first and second hour, and 1.5 times that, which is 54 pages, during the third hour.

Let's break down the information given:

Geno read 126 pages in 3 hours.

He read the same number of pages each hour for the first 2 hours.

Geno read 1.5 times as many pages during the third hour as he did during the first hour.

Let's solve this:

Let's assume that Geno read x pages during the first hour.

Since he read the same number of pages each hour for the first 2 hours, he also read x pages during the second hour.

During the third hour, Geno read 1.5 times as many pages as he did during the first hour, which is 1.5x pages.

To find the total number of pages he read, we can add up the pages from each hour: x + x + 1.5x = 126.

Combining like terms, we have 3.5x = 126.

Divide both sides of the equation by 3.5 to solve for x: x = 36.

Therefore, Geno read 36 pages during the first and second hour, and 1.5 times that, which is 54 pages, during the third hour.

In summary, Geno read 36 pages during each of the first two hours and 54 pages during the third hour, for a total of 126 pages in 3 hours.

For similar question on same number.

https://brainly.com/question/10873737  

#SPJ8


Related Questions

A shop gives an offer saying '20% discount on all products and if your bill amount (after the discount) is more than Rs 1000,
then you will get further discount of 20% on the bill amount).
Aditi buys goods worth Rs 2400 by marking price. What is the amount she needs to pay?

Answers

Answer:

Step-by-step explanation:

To calculate the amount Aditi needs to pay, we need to apply the discounts step by step based on the given offer.

Step 1: 20% discount on all products

The marked price of the goods is Rs 2400. Applying a 20% discount means she will get a reduction of 20% of the marked price.

20% of Rs 2400 = (20/100) * Rs 2400 = Rs 480

After the first discount, the new bill amount is Rs 2400 - Rs 480 = Rs 1920.

Step 2: Additional 20% discount on the bill amount if it exceeds Rs 1000

The new bill amount after the first discount is Rs 1920. If this amount exceeds Rs 1000, Aditi will get a further discount of 20% on this bill amount.

Since Rs 1920 is greater than Rs 1000, we can apply a 20% discount to it.

20% of Rs 1920 = (20/100) * Rs 1920 = Rs 384

The final amount Aditi needs to pay after both discounts is Rs 1920 - Rs 384 = Rs 1536.

Therefore, Aditi needs to pay Rs 1536.

Jake drives a tractor from one town to another, a distance of 120 kilometers. He drives 6 kilometers per hour faster on the return trip, cutting 1 hour off the time. How fast does he drive each way?

Answers

The speed of Jake's initial trip is x = 24 kilometers per hour, and the speed of the return trip is x + 6 = 30 kilometers per hour.

Let's assume that Jake's speed during the initial trip is represented by "x" kilometers per hour.

On the return trip, he drives 6 kilometers per hour faster, so his speed can be represented as "x + 6" kilometers per hour.

To find the time taken for each trip, we can use the formula Time = Distance / Speed.

For the initial trip, the time taken is 120 kilometers divided by x kilometers per hour, which gives us 120/x hours.

On the return trip, the time taken is 120 kilometers divided by (x + 6) kilometers per hour, which gives us 120/(x + 6) hours.

According to the problem, the return trip takes 1 hour less than the initial trip. So we can set up the equation:

120/x - 1 = 120/(x + 6)

To solve this equation, we can multiply both sides by x(x + 6) to eliminate the denominators:

120(x + 6) - x(x + 6) = 120x

Simplifying this equation:

120x + 720 - x² - 6x = 120x

Combining like terms:

x² + 6x - 720 = 0

Now we can solve this quadratic equation by factoring or using the quadratic formula. By factoring, we find:

(x + 30)(x - 24) = 0

This gives us two potential solutions: x = -30 or x = 24.

Since speed cannot be negative, we discard the solution x = -30.

Therefore, the speed of Jake's initial trip is x = 24 kilometers per hour, and the speed of the return trip is x + 6 = 30 kilometers per hour.

So, Jake drives at a speed of 24 kilometers per hour on the initial trip and 30 kilometers per hour on the return trip.

For similar question on speed.

https://brainly.com/question/29483294  

#SPJ8

point D i ain’t the interior of ABC . what is m/ DBC

Answers

Answer:

36.5°

--------------------------------

Angles ABD and DBC form a linear pair, hence their sum is 180°.

Set up an equation and solve for x:

3x + 22 + x - 4 = 1804x + 18 = 1804x = 162x = 40.5

Substitute 40.5 for x and find the measure of ∠DBC:

m∠DBC = 40.5 - 4 m∠DBC = 36.5

what is the value of x in the triangle

Answers

Answer:

7

Step-by-step explanation:

In an 30-60-90 right triangle, the longer leg is the shorter leg multiplied by [tex]\sqrt{3}[/tex]

So [tex]7\sqrt{3} =x*\sqrt{3[/tex]

[tex]7=x[/tex]

x=7

Answer:

A. 21

Step-by-step explanation:

This is a 30-60-90 triangle, where you have one 30° angle, one 60°, and one 90° (aka right) angle.  

The sides of a 30-60-90 triangle adhere to the following rules:

The side opposite the 30° angle is the shortest side and we can call its length "x".The side opposite the 60° angle is the medium length side and its length is given by x * √3.  This means its length is the product of the length of the side opposite the 30° angle and √3.The side opposite the 90° (right) angle is the longest side (aka the hypotenuse) and its length is given by 2x.  This means its length is twice the length of the side opposite the 30° angle.

Since 7√3 is the length of the side opposite the 30° angle, the entire expression represents x.

Since the length of the side opposite the 60° angle is given by x * √3, the length of this side is (7√3)(√3).

Simplifying gives us 7*3, which is 21.

Thus, the value of x in the triangle is 21 (answer choice A.)

please help quick
Which of the following are solutions to the quadratic equation? Check all that
apply.

Answers

The correct solutions to the quadratic equation are:

c. -8

e. 2

To determine the solutions to the quadratic equation 2x^2 + 6x - 10 = x^2 + 6, we need to solve for x.

First, let's simplify the equation by combining like terms:

2x^2 + 6x - 10 - x^2 - 6 = 0

x^2 + 6x - 16 = 0

Now, we can solve this quadratic equation by factoring or by using the quadratic formula.

By factoring:

(x + 8)(x - 2) = 0

Setting each factor equal to zero, we get:

x + 8 = 0 --> x = -8

x - 2 = 0 --> x = 2

So, the solutions to the quadratic equation are x = -8 and x = 2.

Now, let's check the given options:

a. -2: This value is not a solution to the equation.

b. 1/3: This value is not a solution to the equation.

c. -8: This value is a solution to the equation.

d. -1/2: This value is not a solution to the equation.

e. 2: This value is a solution to the equation.

f. 8: This value is not a solution to the equation.

The following are the proper answers to the quadratic equation: c. -8 e.2

for such more question on quadratic equation

https://brainly.com/question/1214333

#SPJ8

What is the difference quotient of the function f(x) = 12x + 1?

Answers

The difference quotient of the function f(x) = 12x + 1 is 12.

The difference quotient of a function measures the average rate of change of the function between two points. To find the difference quotient of the function f(x) = 12x + 1, we can follow these steps:

Select two points on the function, let's call them x and x + h, where h is a small positive value.

Evaluate the function at those two points to get the corresponding y-values. For f(x) = 12x + 1, we have:

f(x) = 12x + 1

f(x + h) = 12(x + h) + 1

Calculate the difference quotient by subtracting the values and dividing by h:

[f(x + h) - f(x)] / h

= [(12(x + h) + 1) - (12x + 1)] / h

= [12x + 12h + 1 - 12x - 1] / h

= (12h) / h

= 12

In this case, since the function is linear with a slope of 12, the difference quotient is constant and equal to the slope of the function. This means that for every unit increase in x, the function f(x) increases by 12.

For such more question on function:

https://brainly.com/question/11624077

#SPJ8

Consider this equation

1/x-1 = | x-2 |

Using three iterations of successive approximation, what is the approximate solution to the equation? Use the graph as a starting point.

A. x ≈ 43/16

B. x ≈ 21/8

C. x ≈ 41/16

D. x ≈ 19/8

Answers

The approximate solution to the equation 1/x-1 = |x-2| after three iterations of successive approximation is x ≈ 5/2 or x ≈ 2.5.

To solve the equation 1/x-1 = |x-2| using three iterations of successive approximation, we will start with an initial guess and refine it using an iterative process.

Given that the equation involves absolute value, we will consider two cases:

Case 1: x - 2 ≥ 0

In this case, |x-2| simplifies to x-2, and the equation becomes 1/(x-1) = x-2.

Case 2: x - 2 < 0

In this case, |x-2| simplifies to -(x-2), and the equation becomes 1/(x-1) = -(x-2).

Now, let's perform the successive approximation:

Iteration 1:

Let's start with an initial guess, x = 2.

Case 1: When x - 2 ≥ 0,

1/(2-1) = 2-2,

1/1 = 0,

which is not true.

Case 2: When x - 2 < 0,

1/(2-1) = -(2-2),

1/1 = 0,

which is not true.

Since our initial guess did not satisfy the equation in either case, we need to choose a different initial guess.

Iteration 2:

Let's try x = 3.

Case 1: When x - 2 ≥ 0,

1/(3-1) = 3-2,

1/2 = 1,

which is not true.

Case 2: When x - 2 < 0,

1/(3-1) = -(3-2),

1/2 = -1,

which is not true.

Again, our guess did not satisfy the equation in either case.

Iteration 3:

Let's try x = 2.5.

Case 1: When x - 2 ≥ 0,

1/(2.5-1) = 2.5-2,

1/1.5 = 0.5,

which is true.

Case 2: When x - 2 < 0,

1/(2.5-1) = -(2.5-2),

1/1.5 = -0.5,

which is not true.

Our guess of x = 2.5 satisfies the equation in Case 1.

Therefore, the approximate solution to the equation 1/x-1 = |x-2| after three iterations of successive approximation is x ≈ 5/2 or x ≈ 2.5.

for such more question on equation

https://brainly.com/question/27870704

#SPJ8

how many zero pairs are in 9+ (-16)?

Answers

There are no zero pairs in the expression.

To calculate the number of zero pairs in statement 9 + (-16), we need to clarify the expression and determine any matching positive and negative numbers.

In this respect, 9 and -16 have unlike signs. To simplify, we can rewrite the expression as 9 - 16, which is similar to adding the opposite of 16.

Here, let's look for zero pairs. A zero pair incorporate a positive and negative number that cancel each other out and occur in a sum of zero.

In the expression 9 - 16, there are no identical positive and negative numbers.

Learn more about pairs here:

https://brainly.com/question/31875891

Daisy has a box of sea glass that has a mass or 1 1/2 kilograms.the box has a mass of 235 grams when it is empty. What is the mass of the sea glass in grams?

Answers

The mass of the sea glass in the box is 1265 grams.

To find the mass of the sea glass in grams, we need to subtract the mass of the empty box from the total mass of the box with the sea glass. Let's convert all the units to grams for consistency.

Mass of the empty box = 235 grams

Total mass of the box with sea glass = 1 1/2 kilograms = 1.5 kilograms = 1500 grams

To determine the mass of the sea glass, we subtract the mass of the empty box from the total mass:

Mass of the sea glass = Total mass of the box with sea glass - Mass of the empty box

Mass of the sea glass = 1500 grams - 235 grams

Performing the subtraction:

Mass of the sea glass = 1265 grams

To learn more about kilograms

https://brainly.com/question/9301317

#SPJ8

Combine like terms I need help pls!!!!

Answers

Answer:

21 - 12p

Step-by-step explanation:

I hope this helps and I'm super sorry if I'm wrong!

First apply the distributive property.
7 • -2p and 7 • 3
-14p + 21 + 2p
Then combine like terms
-14 + 2p
-12p + 21

Using a​ t-distribution table or software or a​ calculator, report the​ t-statistic which is multiplied by the standard error to form the margin of error for the following cases: a. 90​% confidence interval for a mean with 8 observations. b. 90​% confidence interval for a mean with 18 observations. c. 99​% confidence interval for a mean with 18 observations.

Answers

a. The t-value is 1.895.

b. The t-value is 1.734.

c. The t-value is 2.898.

To calculate the t-statistic for a confidence interval, we first need to determine the degrees of freedom (df), which depends on the sample size minus one. We can then use a t-distribution table, software, or calculator to find the t-value at the desired confidence level and degrees of freedom.

a. For a 90% confidence interval with 8 observations, the degrees of freedom is 7. Using the t-distribution table or calculator,

b. For a 90% confidence interval with 18 observations, the degrees of freedom is 17. Using the t-distribution table or calculator,

c. For a 99% confidence interval with 18 observations, the degrees of freedom is 17. Using the t-distribution table, software, or calculator,

Note that as the sample size increases, the degrees of freedom increase and the t-value approaches the value of the standard normal distribution for large sample sizes. This means that for large sample sizes, we can use the z-value instead of the t-value in confidence interval calculations.

For such more questions on value

https://brainly.com/question/843074

#SPJ8

cindy bought 7/8 yard of ribbon at a craft store. Jacob bought 4/5 the length of ribbon as Cindy. How many yards of ribbon did Jacob buy?

Answers

Jacob bought 0.7 yards of ribbon.

To find out how many yards of ribbon Jacob bought, we need to determine 4/5 of the length of ribbon that Cindy bought.

Cindy bought 7/8 yard of ribbon. To find 4/5 of this length, we multiply 7/8 by 4/5:

(7/8) * (4/5) = (7 * 4) / (8 * 5) = 28/40

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 4:

(28/4) / (40/4) = 7/10

Therefore, Jacob bought 7/10 yard of ribbon.

However, we can convert this fraction to a mixed number or decimal to express it in yards.

To convert 7/10 to a mixed number, we divide the numerator (7) by the denominator (10):

7 ÷ 10 = 0 with a remainder of 7

So, 7/10 is equivalent to 0 7/10 or 0.7 yards.

Therefore, Jacob bought 0.7 yards of ribbon.

In summary, Jacob bought 7/10 yard or 0.7 yards of ribbon.

For more such questions on yards visit:

https://brainly.com/question/30048343

#SPJ8

19
Select the correct answer.
This table represents function f.
0
2
I
f(x)
0
-2
If function g is a quadratic function that contains the points (-3, 5) and (0, 14), which statement is true over the inter
-3
-4.5
-2
-2
-1
-0.5
1
-0.5
3
-4.5
OA. The average rate of change of fis less than the average rate of change of g.
O B.
The average rate of change of fis more than the average rate of change of g.
'O C.
The average rate of change of fis the same as the average rate of change of g.
OD. The average rates of change of f and g cannot be determined from the given information.

Answers

The average rate of change of f(x) is less than average rate of change of g(x). Then the correct option is A.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

The function f(x) is given in the table, then the rate of change of the function f(x) will be

[tex]\text{Rate of change of f(x)} = \dfrac{(-2 + 4.5)}{(-2 + 3)}[/tex]

[tex]\text{Rate of change of f(x)} = 2.5[/tex]

If function g is a quadratic function that contains the points (-3, 5) and (0, 14).

Then the rate of change of the function g(x) will be

[tex]\text{Rate of change of g(x)} = \dfrac{(14 - 5)}{(0 + 3)}[/tex]

[tex]\text{Rate of change of g(x)} = \dfrac{9}{3}[/tex]

[tex]\text{Rate of change of g(x)} = 3[/tex]

Thus, the average rate of change of f(x) is less than average rate of change of g(x).

Then the correct option is A.

To know more about the function, the link is given below.

https://brainly.com/question/31062578

Place point Q on the graph to indicate an unemployment rate of 100 percent, point R to indicate full employment, and point S to indicate where the U.S. economy usually operates.

Answers

In a Production Possibility Curve (PPC) with product output Y on the vertical axis and product output X on the horizontal axis the following points are described as follows.

Explanation for PPC

- Point Q represents an unemployment rate of 100 percent. It is located at the origin, where both axes intersect, indicating no product output due to complete unemployment.

- Point R signifies full employment and is located at the maximum product output on the X-axis, showing the economy's capacity when all resources are fully utilized.

- Point S indicates where the US economy typically operates, within the usual range of product output levels on the X-axis, reflecting a balanced unemployment rate that includes frictional and structural unemployment.

Learn more about PPC:
https://brainly.com/question/28193924
#SPJ1

En una ciudad se midió la temperatura a las 7:00 am y el valor fue de 15°C, luego se midió a las 3:00 pm el valor fue de 24°C. Partiendo del nivel de medición de esta variable, en qué proporción excede una temperatura de la otra, analice su respuesta.

Answers

The proportion by which the later temperature exceeds the earlier temperature is 3/5 or 3:5.

In what proportion does one temperature exceed the other?

To determine the proportion by which one temperature exceeds the other, we need to calculate the difference between the two temperatures and express it as a proportion of the starting temperature.

First, calculate the temperature difference between 7:00 am and 3:00 pm:

temperature difference = 24°C - 15°C = 9°C

Now, express the temperature difference as a proportion of the starting temperature (15°C).

Proportion = Temperature difference / Starting temperature

Proportion = 9/15

Proportion = 3/5

Learn more about proportion on:

brainly.com/question/1781657

#SPJ1

Question in English

In a city the temperature was measured at 7:00 am and the value was 15°C, then it was measured at 3:00 pm the value was 24°C. Starting from the level of measurement of this variable, in what proportion does one temperature exceed the other, analyze your answer.

What is the surface area of a triangular with 6, 7cm 4cm 12cm

Answers

The surface area of the given triangle is approximately 33.74 square centimeters.

To calculate the surface area of a triangle, we need the lengths of two sides and the included angle between them. However, in this case, you provided the lengths of all three sides (6 cm, 7 cm, and 12 cm).

To determine the surface area, we can use Heron's formula, which is applicable to triangles with all three side lengths known.

Heron's formula states that the surface area (A) of a triangle with side lengths a, b, and c is given by:

[tex]A = \sqrt(s \times (s - a) \times (s - b) \times (s - c))[/tex]

where s is the semi perimeter of the triangle, calculated as:

s = (a + b + c) / 2

Plugging in the given side lengths, we have:

s = (6 cm + 7 cm + 12 cm) / 2 = 25 / 2 = 12.5 cm

Now we can substitute the values into Heron's formula:

[tex]A = \sqrt(12.5 cm \times (12.5 cm - 6 cm) \times (12.5 cm - 7 cm) \times (12.5 cm - 12 cm))[/tex]

[tex]= \sqrt(12.5 cm \times 6.5 cm \times 5.5 cm \times 0.5 cm)[/tex]

= √(1137.5 cm^4)

≈ 33.74 cm^2

For more such questions on triangle

https://brainly.com/question/1058720

#SPJ8

What is the total amount and the amount of interest earned on $6,500 at 6% for 25 years?
Total Amount Interest Amount
compounded annually
compounded semiannually
compounded quarterly
V

Answers

Answer:

The total amount with annual compounding is 23,304.79 .

The interest with annual compounding is $18,304.79.

The total amount with semi annual compounding is 24,005.10.

The interest with semi annual compounding is $19,005.10.

The total amount with quarterly compounding is 24,377.20.

The interest with quarterly compounding is $19,377.20.

What are the total amount and interest?

The formula for determining the total amount is:

FV = PV(1 + r/m)^nm

Where:

FV =total amount

PV = amount deposited

r  = interest rate

n  = number of years

m = number of compounding

Interest = FV - amount deposited

FV = 5000 x (1.08)^20 = 23,304.79

Interest = 23,304.79 - 5000 = $18,304.79

FV =5000 x (1.08/2)^(2 x 20) =24,005.10

Interest = 24,005.10 - 5000 = $19,005.10

FV =5000 x (1.08/4)^(20 x 4) =24,377.20

Interest = 24,377.20 - 5000 = $19,377.20

Step-by-step explanation:

what does a fraction that is horizontally compressed versus vertically compressed look like?

Answers

Answer:

Fractions are like pancakes: you can flatten them horizontally or vertically. Horizontal flattening means you shrink the x-value by multiplying it by a huge number before doing anything else. Vertical flattening means you squish the y-value by multiplying the whole function by a tiny number. For example, if f (x) = x^2, then f (2x) is horizontally flattened by 2 and f (0.5x^2) is vertically flattened by 0.5. Don't worry, it's not rocket science, it's just math.

write the standard form of the equation of a circle with radius 2 and )-14,-13).

Answers

Answer:

11? I'm so sorry if it's incorrect. I apologize.

Millman’s golfing group is terrific for a group of amateurs. Are they ready to turn pro? Here’s the data. (Hint: Remember that the lower the score [in golf], the better!)

Milkman’s Group: size 9, average score 82, standard deviation 2.6

The pros: size 500, average score 71, standard deviation 3.1

Answers

Based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.

To determine whether Millman's golfing group is ready to turn pro, we can compare their performance to that of professional golfers. Based on the provided data, Millman's group consists of 9 amateurs with an average score of 82 and a standard deviation of 2.6.

On the other hand, the professional golfers consist of 500 individuals with an average score of 71 and a standard deviation of 3.1.

To make a meaningful comparison, we can look at the average scores of the two groups. The average score is an indicator of the overall performance, with lower scores being better in golf.

In this case, the professional golfers have an average score of 71, while Millman's group has an average score of 82. This suggests that the professional golfers perform better, on average, than Millman's group.

However, it is also essential to consider the standard deviation, which measures the variability of scores within each group. A smaller standard deviation indicates less variation and greater consistency in performance.

The professional golfers have a standard deviation of 3.1, while Millman's group has a standard deviation of 2.6. This suggests that Millman's group has slightly less variation in scores compared to the professional golfers.

Overall, based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.

The professional golfers demonstrate better performance, on average, and a slightly higher variability in scores compared to Millman's group. Therefore, it would be advisable for Millman's group to continue refining their skills and striving to improve their scores before considering turning pro.

For more such question on standard deviations visit:

https://brainly.com/question/475676

#SPJ8

what is the answer and how do I figure it out ​

Answers

Answer:

[tex]\frac{3}{7}[/tex] <  [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

[tex]\frac{3}{7}[/tex] ? [tex]\frac{3}{5}[/tex]

We have to get both fractions with the same denominator to compare them.

[tex]\frac{3}{7}[/tex] = [tex]\frac{15}{35}[/tex]

[tex]\frac{3}{5}[/tex] = [tex]\frac{21}{35}[/tex]

[tex]\frac{15}{35} < \frac{21}{35}[/tex]

So, [tex]\frac{3}{7}[/tex] <  [tex]\frac{3}{5}[/tex]

I am trying to figure out how you would read 2.1 as time would it be hours, minutes, or seconds?

Answers

Answer: seconds

Step-by-step explanation:

answer ASAP I will brainlist and i will answer two questions on your page

Answers

Using row operations to write the augmented matrix, the value of x, y and z are 2, -12 and 11

What is the solution to the system of equations?

To solve the system using row operations, we'll write the augmented matrix and perform row operations to transform it into row-echelon form. Here are the steps:

1. Write the augmented matrix for the system of equations:

  [1  1  -1  |  1]

  [4  -1  1  |  9]

  [1  -3  2  |  -14]

2. Perform row operations to transform the matrix into row-echelon form:

  R2 = R2 - 4R1

  R3 = R3 - R1

  [1  1   -1  |  1]

  [0  -5  5   |  5]

  [0  -4  3   |  -15]

3. Perform row operations to further transform the matrix into row-echelon form:

  R2 = -R2/5

  R3 = -4R2 + R3

  [1  1   -1  |  1]

  [0  1   -1  |  -1]

  [0  0   -1  |  -11]

4. Perform row operations to obtain a diagonal of 1s from left to right:

  R1 = R1 + R3

  R2 = R2 + R3

  [1  1   0  |  -10]

  [0  1   0  |  -12]

  [0  0   -1 |  -11]

5. Perform row operations to transform the matrix into reduced row-echelon form:

  R3 = -R3

  [1  1   0  |  -10]

  [0  1   0  |  -12]

  [0  0   1  |  11]

The resulting matrix corresponds to the system of equations:

x + y = -10

y = -12

z = 11

Therefore, the solution to the given system of equations is x = -10 - y, y = -12, and z = 11.

So, the solution is x = -10 - (-12) = 2, y = -12, and z = 11.

Learn more on augmented matrix here;

https://brainly.com/question/12994814

#SPJ1

Juan, standing at one focus of a whispering gallery; is 20 ft from the nearest
wall. His friend is standing at the other focus, 80 ft away. How high is its elliptical
ceiling at the center?
Fill in the blank:
The elliptical ceiling is
ft high at the center.
Give your answer to the nearest whole ft (no decimal places).

Answers

The elliptical ceiling is approximately 30 ft high at the center.

To find the height of the elliptical ceiling at the center, we can use the properties of an ellipse.

In this case, the two foci of the ellipse represent the positions where Juan and his friend are standing.

The distance between the two foci is 80 ft, and Juan is 20 ft away from the nearest wall.

This means that the sum of the distances from any point on the ellipse to the two foci is constant and equal to 80 + 20 = 100 ft.

Since Juan is standing at one focus and the distance to the nearest wall is given, we can determine the distance from Juan to the farthest wall by subtracting the distance to the nearest wall from the sum of the distances.

Distance from Juan to the farthest wall = 100 ft - 20 ft = 80 ft.

The height of the elliptical ceiling at the center is equal to half of the distance between the nearest and farthest walls.

Height of elliptical ceiling = (80 ft - 20 ft) / 2 = 60 ft / 2 = 30 ft.

For similar question on elliptical ceiling.

https://brainly.com/question/31366898  

#SPJ8

The first three steps in determining the solution set of
the system of equations algebraically are shown.
y=x²-x-3
y=-3x + 5
Step
1
2
3
Equation
x²-x-3=-3x+5
0=x²+
+2x-8
0=(x-2)(x+4)
What are the solutions of this system of equations?
O (-2,-1) and (4, 17)
O (-2, 11) and (4, -7)
O (2, -1) and (-4, 17)
(2, 11) and (-4,-7)

Answers

The solutions of the system of equations are (2, -1) and (-4, 17)

The given system of equations is:

y = x² - x - 3

y = -3x + 5

To find the solutions, we need to solve these equations simultaneously.

Set the equations equal to each other:

x² - x - 3 = -3x + 5

Simplify and rewrite the equation in standard form:

x² - x + 3x - 3 - 5 = 0

x² + 2x - 8 = 0

Factor the quadratic equation:

(x - 2)(x + 4) = 0

Now we can solve for x by setting each factor equal to zero:

x - 2 = 0 or x + 4 = 0

Solving for x, we get:

x = 2 or x = -4

To find the corresponding y-values, we substitute these x-values into either of the original equations. Let's use equation 1):

For x = 2:

y = (2)² - 2 - 3 = 4 - 2 - 3 = -1

For x = -4:

y = (-4)² - (-4) - 3 = 16 + 4 - 3 = 17

As a result, the system of equations has two solutions: (2, -1) and (-4, 17).

The right responses are therefore (2, -1) and (-4, 17).

for such more question on system of equations

https://brainly.com/question/4262258

#SPJ8

Question 1 (1 point)
Caroline wants to create a helix shape by using the screw modifier. Unfortunately,
when she tries the screw modifier, it keeps spinning her model around an axis
without any vertical movement. What does she need to change to get the vertical
movement that will give it a helix-like shape?
Screw option needs to be set to something greater than 0.
Screw option needs to be set to 0.
Screw option needs to be set to something less than 0.
Screw option needs to be turned off.
Question ? (1 point) ✓ Saved

Answers

The correct answer is Screw option needs to be set to something greater than 0.

To get the vertical movement and create a helix-like shape using the screw modifier, Caroline needs to change the screw option to something greater than 0.

The screw option determines the amount of vertical displacement or height of the helix shape.

By setting the screw option to a value greater than 0, Caroline can control the vertical movement of the model as it spirals along the axis, resulting in a helix-like shape.

Therefore, the correct answer is:

Screw option needs to be set to something greater than 0.

for such more question on vertical movement

https://brainly.com/question/9201543

#SPJ8

Determine the percentile of 6.2 using the following data set.
4.2 4.6 5.1 6.2 6.3 6.6 6.7 6.8 7.1 7.2
Your answer should be an exact numerical value.
The percentile of 6.2 is |
%.

Answers

The percentile of 6.2 in the given data set is 40%.

To determine the percentile of 6.2 in the given data set, we can use the following steps:

Arrange the data set in ascending order:

4.2, 4.6, 5.1, 6.2, 6.3, 6.6, 6.7, 6.8, 7.1, 7.2

Count the number of data points that are less than or equal to 6.2. In this case, there are 4 data points that satisfy this condition: 4.2, 4.6, 5.1, and 6.2.

Calculate the percentile using the formula:

Percentile = (Number of data points less than or equal to the given value / Total number of data points) × 100

In this case, the percentile of 6.2 can be calculated as:

Percentile = (4 / 10) × 100 = 40%

The percentile of 6.2 in the sample data set is therefore 40%.

for such more question on percentile

https://brainly.com/question/24877689

#SPJ8

How much money has to be invested at 2.9% interest compounded
continuously to have $34,000 after 18 years?
A. $20,173.31
B. $20,211.34
C. $20,249.07
D. $20,186.02

Answers

Answer:

None of the given options (A, B, C, D) match the correct investment amount.

Explaination:

A = P * e^(rt),

where:

A = the future amount (in this case, $34,000),

P = the principal amount (the initial investment),

e = Euler's number (approximately 2.71828),

r = the interest rate (2.9% expressed as a decimal, so 0.029),

t = the time period (18 years).

We can rearrange the formula to solve for P:

P = A / e^(rt).

Now we can plug in the given values and calculate the investment amount:

P = $34,000 / e^(0.029 * 18).

Using a calculator, we can evaluate e^(0.029 * 18) and divide $34,000 by the result to find the investment amount.

Calculating e^(0.029 * 18) gives us approximately 1.604.

P = $34,000 / 1.604 ≈ $21,179.55

(Comparing Data LC)

The histograms display the frequency of temperatures in two different locations in a 30-day period.
When comparing the data, which measure of variability should be used for both sets of data to determine the location with the most consistent temperature?

A IQR, because Sunny Town is symmetric
B IQR, because Beach Town is skewed
C Range, because Sunny Town is skewed
D Range, because Beach Town is symmetric

Answers

IQR, because Sunny Town is symmetric should be used for both sets of data to determine the location with the most consistent temperature?(option a).

1. The question asks for the measure of variability that should be used to determine the location with the most consistent temperature when comparing the data from two different locations.

2. The first option, A, suggests using the Interquartile Range (IQR) because Sunny Town is symmetric. This means that the data in Sunny Town is evenly distributed around the median, indicating consistency in temperatures.

3. The second option, B, proposes using the IQR because Beach Town is skewed. Skewness implies an asymmetrical distribution, which may indicate less consistency in temperatures.

4. The third option, C, suggests using the Range because Sunny Town is skewed. Skewed data in Sunny Town might imply a larger spread and less consistency in temperatures.

5. The fourth option, D, recommends using the Range because Beach Town is symmetric. However, symmetric data indicates consistency, making the Range less suitable as a measure of variability.

6. Considering the explanations for each option, the best choice is A, IQR, because Sunny Town is symmetric. The symmetric distribution suggests that the temperatures in Sunny Town are consistent and evenly distributed around the median.

7. Therefore, the measure of variability that should be used for both sets of data to determine the location with the most consistent temperature is the IQR, as indicated by option A.

For more such questions on symmetric, click on:

https://brainly.com/question/20168388

#SPJ8

Solve the quadratic by taking square roots.
32=25x^2-4

Answers

Hello!

[tex]32 = 25x^2 - 4\\\\32 + 4 = 25x^2\\\\36 = 25x^2\\\\25x^2 - 36 = 0\\\\x = \dfrac{-b \±\sqrt{b^2 - 4ac} }{2a} \\\\\\x = \dfrac{-0 \±\sqrt{0^2 - 4 \times 25 \times (-36) } }{2 \times 25} \\\\\\x = \dfrac{\±60}{50} \\\\\boxed{x = \±\frac{6}{5} }[/tex]

Other Questions
Let L be a lattice.(a) When will L be a Boolean algebra? (b) Suppose | L=2. Can we be sure that L is a Boolean algebra? Explain carefully. (c) State a necessary and sufficient condition for D, (n 2) to be a Boolean algebra. You studied public cryptography briefly. Based on what you learned, answer the following questions:Provide one practical use case that is hard to achieve without public-key cryptography.Is public cryptography suitable for large messages? Justify your answer a) A flat roof is very susceptible to wind damage during a thunderstorm and/or tornado. If a flat roof has an area of 780 m2 and winds of speed 41.0 m/s blow across it, determine the magnitude of the force exerted on the roof. The density of air is 1.29 kg/m3.N(b) As a result of the wind, the force exerted on the roof is which of the following?upwarddownward please simulate Single phase induction motor by MATLAB program please Q3/ Identify the following statement whether it is (True) or (False). If your answer is false, give the correct answer? (25 Marks) 1- Dowel bars are generally provided across longitudinal joints of rigid pavement. 2- The migration of asphalt cement to the surface of the pavement under wheel loads especially at high temperatures is called stripping. 3- The lower the penetration of asphalt binder, the softer the asphalt binder. 4- We need to keep the aggregate for 24 hours in an oven at 105C to obtain the aggregate dry weight. 5- It is important to design thicker layers of asphalt if the subgrade materials are not strong enough to withstand expected loads during their life cycle. 6- The medium curing asphalt is produced by blending asphalt with diesel oil. Outline of assessment Report of a study of improvement in utility system (e.g. water, electricity, transport) of a residential area in terms of societal, health, safety, legal and cultural issues. Identify the consequent responsibilities relevant to professional engineering practice and solutions of the utility system Tittle- Design a Zero Energy House for your Family Zero energy houses differ widely in style because they conform to local geography. Regardless of location, zero energy buildings have many of the following features in common: self-sufficient energy production > emphasis on passive energy systems strategically placed shade trees for cooling added insulation from ivy and other plants surrounding the house south-facing windows to capture sunlight and heat skylights for natural lighting cross-ventilation from open windows and skylights please attach the references1. Property development includes some tension between the interests of the developer and those of their immediate neighbours. Discuss this proposition by reference to the Party Walls Act 1996. Write the Bio O for the following operation: Enque( ) = O() Deque() = O() Swap() = O() makeEmpty() = O () PQ:: ~PQ() = O () In three winding transformer at s.c. test when winding 1 and winding 2 shorted and winding 3 open, the resulting per-unit measured leakage impedance will be: f. Z33 a. Z b. Z13 e. Z23 c. Z d. Ziz 6) When 2.4 kn resistor and 1.8 kn capacitive reactance are in parallel, the power factor is: a. 0.6 lead b. 0.707 lead c. 0.8 lead d. 0.6 lag e. 0.707 lag f. 0.8 lag A 20 kVA, 220 V/120 V 1-phase transformer has the results of open- circuit and short-circuit tests as shown in the table below: Voltage Current Power 220 V 1.8 A 135 W Open Circuit Test (open-circuit at secondary side) Short Circuit Test (short-circuit at primary side) 40 V 166.7 A 680 W (4 marks) (4 marks) Determine: (1) the magnetizing resistance Re and reactance Xm: (ii) the equivalent winding resistance Req and reactance Xec referring to the primary side; (iii) the voltage regulation and efficiency of transformer when supplying 70% rated load at a power factor of 0.9 lagging: (iv) the terminal voltage of the secondary side in the (a)(iii); and (v) the corresponding maximum efficiency at a power factor of 0.85 lagging (b) Draw the approximate equivalent circuit of the transformer with the values obtained in the What is the difference between the Task Environment and the wider PESTLE environment? Select one: O a. PESTLE factors can be managed via the Task Environment Ob. Task Environment risks affect the PESTLE environment OC. The cyclical timeframes are longer in the Task Environment Local Councils control this distinction O d. O e. The Task Environment does not contain manageable risks A ray of of light in air is incident on a surface that partially reflected and partially refracted at a boundary between air and a liquid having an index refraction of 1.46. The wavelength of the light ray traveling is 401 nm. You must show the steps and formula below. Solve for - The wavelength of the refracted light. - The speed of the light when propagating in the liquid. - At an angle of 30deg for the incidence of the light ray, the angle of refraction. BONUS Solve for the smallest angle of incidence (for the exact purpose of the ray undergoing total internal refraction) for a second ray traveling in the liquid in the opposite direction on the provided surface (water/air interface). A separately excited DC machine has rated terminal voltage of 220 V and a rated armature current of 103 A. The field resistance is 225 and the armature resistance is 0.07. Determine (i) The induced EMF if the machine is operating as a generator at 50% load. E a gen= V (ii) The induced EMF if the machine is operating as a motor at full load. E a mot= Directions: Read the passage, and answer the question that follows.George WashingtonA George Washington, the first president of the United States, is known as the father of our country. To become president, George had to be brave and honest. This story tells how he showed both bravery and honesty even as a young boy.B Young George grew up on a plantation in Virginia. His father grew many things there. His fathers pride and joy, though, was his fruit orchard. He grew all kinds of pears, apples, peaches, plums, and cherries. Mr. Washington planted one very special tree, a cherry tree, just at the edge of his orchard. He told everyone how much he cared for this tree, and he took special care of it. It was the most beautiful tree on the whole plantation.C One spring, just as all the trees were in bloom, George was given a hatchet. Right away, he tried out his new gift. He chopped fence rails, sticks, and anything else he could find. Toward evening, George came to the edge of the orchard. Without thinking, George chopped right through his fathers favorite cherry tree.D Later, after a long day of work, Mr. Washington took a walk around the grounds. When he neared the place where his special tree had stood, he was shocked. To his surprise, he found his prized tree cut down to the ground. Mr. Washington was furious! He demanded to know how this had happened. He found young George and asked, Do you know what happened to this tree?E George could see his fathers great anger, and he became quite scared. He knew he had to answer somehow; so even though he was afraid, he took a deep breath and stood straight and tall. Then he looked his father in the eye and said these famous words: I cannot tell a lie. Father, I chopped down your cherry tree.F Now Mr. Washington was very angry, but he, too, took a deep breath and then told George to wait in the house. George was very sorry about what he had done. He was worried as he waited for his father. When Mr. Washington entered the house, he looked at George sternly and said, Now, George, why did you cut down my tree?G Shaking, George was barely able to explain. He told how he had become so excited by his new hatchet that he cut the tree down without thinking of what he was doing at the time. He had not meant to do anything wrong.H His father looked very disappointed. He told George how unhappy he was. Then he said, This tree came from the Old World across the ocean. It cannot be replaced.I George felt worse than he had ever felt before. He bowed his head and said, Im sorry.J Mr. Washingtons face changed. He knelt down beside George and said, I am unhappy about losing my favorite tree. But I am very pleased that you were brave enough to face me and tell the truth. Remember, son, the truth is far more important than all of the finest trees in the world.K Although we are not sure that this is a true story, many people will tell you that it did happen. George remembered his fathers words and stayed brave and honest for the rest of his life.There is enough information in the passage to show that George Washingtona.had a lonely childhoodb.never disobeyed his father againc.went on to become an honest statesmand.caused trouble once he became presidentPlease select the best answer from the choices providedABCD 0.5(x-4)=4x-3(x-1)+37/5 Please read the following paragraph and classify the way the author uses their sources. For example, are they using the first source as a Background, Exhibit, Argument, or Method source? How can you tell? Write a post or record a video/audio post that tells us your answers and explains why you how to come to your conclusions.SAMPLE PARAGRAPHEven though it might seem like grades are a natural feature of schooling, they are a relatively new addition to education. According to Susan Blum, written exams became the norm at places like Oxford and Cambridge in the 18th and 19th centuries. This was likely due to the increased number of examinees, "where the scale made oral examinations impractical" (Blum 6).Grades, then, are no more a intrinsic part of education than, say, computers or tablets.In fact, grades might actually stand in the way of education. For example, a study conducted by the University of Philadelphia showed that grades causes student anxiety to increase and risk-taking in the courses to decrease (Fordham 104). Gunther Bleaker's work on anxiety has shown that when we enter into a high-anxiety, fight-or-flight mode, our brains are not able to synthesize new information, nor are we able to think beyond simple responses (445). These are not ideal conditions for learning. Because we know that students learn best when their anxiety levels are low and that risk-taking is a key component to deep learning, this shows that grades actual hinder education. In fact, when compared with a similar group of students who received grades, an ungraded cohort demonstrated a deeper understand of course material in a final assessment (Veith 45).So what's the solution? Grades need to play a smaller role in education. This is also the opinion of Stephen Reading, an expert in higher education pedagogy. Reading says, "The more we move away from valuing grades in our education and institutions, the better education our students will receive." Reading is right. School should begin to place less emphasis on grades and spend more time and attention on more meaningful assessment tools.Response PostsChoose two posts to respond to. Did they have the same classifications as you? If not, how did they differ? And finally, what did you learn about the BEAM method of using sources from this week? Suppose the utility function for goods x and y is givenUtility = U(x,y) = xy +ySuppose price of both x and y is $1. You have total $10 to spend, calculate the amount of good x and y you are willing and able to buy?Suppose price of x changed to $0.5. Price of y and your disposable income remain the same:calculates the change in the amount of good x, that is caused by the substitution effect (the effect on consumption due to a change in price holding real income or utility constant). 8.2 Give the sequence of P-code instructions corresponding to each of the arithmetic instruc- tions of the previous exercise. 8.1 Give the sequence of three-address code instructions corresponding to each of the follow- ing arithmetic expressions: a. 2+3+4+5 b. 2+(3+(4+5)) c. a*b+a*b*c Design and implementation of wireless LAN for a small campusWireless networks are difficult to manage and secure due to the diverse nature of components andopen availability of standards compared to the wired network. Nowadays, there several securitypractices expected to illustrate why there is a need to implement security tools in WLAN underdifferent attacks. There are high possibilities that unauthorised users may be received the access ofthe network within the range of Wireless Network. The organisation needs to secure its WLAN toensure business safety and customer protection.In this project, we want to install the WLAN services on a small campus with a limited user. It isnecessary to consider the possibility of all attack fromunauthorised users in a wireless network environment. The internal network can be further securedto provide access to authorised staff members only high security. To facilitate internet access tostudents in different classrooms, library, and/or cafeteria, we may implement WLAN in such a wayInternet access is available to any user (without authentication).You can find a set of tools such as WAP or WAP2 used for providing highquality network security.The tools help you to protect the network with a large coverage area.We need to discover different types of IEEE802.11a/b/g/n wireless networks within range in realtime. The tools need to provide information about the network like name, SSID, security strength,source type and basic address of the network. The security ensures the authentication of users inWLAN and the users on the wired network. We recommended doing it by deploying IEEE802.11xauthentication that provides authentication for devices trying to connect with other devices on LANsor wireless LANs.The main objective in this assignment is to implement the IEEE 802.1X standard for security overwireless LAN authentications for a campus with a limited number of users.Best practices for deploying 802.1X should start with a well thought out plan that includes, but is notlimited to, the following considerations: Give your proposed WLAN design for the campus. How can you secure your designed networkfrom all kind of attack using WPA or WPA2 technique? Consider the network design withdevices that support 802.1X Give a single and unified solution IEEE 802.11x network using ProtectioncapableManagement Frames that uses the existing security mechanisms rather than creating a newsecurity scheme. You need to deploy a secure 802.1X of any suitable (maybe Cisco and Xirrus) wireless networkto serve 300 users of University A. Keep in mind that their challenges are to find a solutionthat best eased their deployment, devices authentication and troubleshooting tools, andsupported their diverse mix of user devices and multivendor network equipment. Aftercareful evaluation, you observed that the AAA/NAC platform support multivendor 6. Bug Protection(1) Almost all insects will fee if threatened. (2) Many insects, however, have more specialized means of defense. (3)Roaches and stinkbugs, for example, secrete foul-smelling chemicals that deter aggressors. (4) Bees, wasps, and someants have poisonous stings that can kill smaller predators and cause pain for larger ones. (5) The larvae of some insectshave hairs filled with poison. (6) If a predator eats one of these larvae, it may suffer a toxic reaction. (7) Insects thatdefend themselves by unpleasant or dangerous chemicals gain two advantages. (8) On one hand, they often deter apredator from eating them. (9) On the other hand, predators learn not to bother them in the first place.(10) Other insects gain protection by mimicry, or similarity of appearance. (11) In one kind of mimicry, insects with similardefense mechanisms look alike, and predators leam to avoid them all. (12) Bees and wasps mimic each other in thisway. (13) In another kind of mimicry, insects with no defenses of their own mimic the appearance of stinging or bad-tasting insects (14) Predators avoid the mimic as well as the insect with the unpleasant taste or sting (15) For example,syrphid flies look like bees but do not sting.(16) Another kind of defense based on appearance is camouflage, or the ability to blend into surroundings. (17) Manykinds of insects and animals have distinctive color markings that make them difficult to see. (18) Predators have troublelocating prey that looks like its background. (19) An insect is more likely to survive and produce offspring if it iscamouflaged than if it is not.