What is the area of the rectangle?

What Is The Area Of The Rectangle?

Answers

Answer 1
The area of a rectangle is

A=bh
Answer 2
I think it’s 192.
Explanation: 24 times 8

Related Questions

The recipe for a gallon of mint chocolate ice cream calls for 4 fluid ounces of vanilla. Tyler is making 6 gallons of mint chocolate ice cream for a bake sale. How many cups of vanilla does he need?

Answers

Tyler need 24 cups of vanilla for making 6 gallons of mint chocolate ice cream for a bake sale.

We know that the recipe for a gallon of mint chocolate ice cream calls for 4 fluid ounces of vanilla. Tyler is making 6 gallons of mint chocolate ice cream for a bake sale, we need to find how many cups of vanilla does he need:

therefore, first we need to find the ratio according to the statement above:

one gallon of mint chocolate : fluid ounces of vanilla = 1:4

now we need to find how many cups of vanilla does he needs for 6 gallons = 1 x 6 : 4 x 6

= 6 : 24

therefore it is clear that Tyler need 24 cups of vanilla for making 6 gallons of mint chocolate ice cream for a bake sale.

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help asap assignment closes soon!

Answers

According to the information, the approximation and exact values are V = 65.45 cubic cm (approximation to the nearest hundredth), Exact value: V = (4/3)π(2.5)^3 = 65.44984695 cubic cm (exact).

How to calculate the volume of the sphere?

The formula for the volume of a sphere is:

V = (4/3)πr^3

Since the diameter of the sphere is given as 5 cm, the radius is half of that, which is:

r = d/2 = 5/2 = 2.5 cm

Substituting this value into the formula, we get:

V = (4/3)π(2.5)^3V = (4/3)π(15.625)V = 65.45 cubic cm (approximation to the nearest hundredth)

Exact value: V = (4/3)π(2.5)^3 = 65.44984695 cubic cm (exact)

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The city of London charges $1,800 in taxes per year for a 2,500 square metre farm. How much would Maple Farms have to pay in taxes, it they had a 15,200 square metres farm in the same area?

Answers

Maple Farms needs to pay $10,944 in taxes for a land measuring

15,200 m².

Here we are given that Maple Farms owns an area of 15,200 m²

Now for every 2500 m² area of farm land, the tax needed to be paid in the city of London is $1,800. We are required to find tax to be paid for 15,200 m² of farmland.

First, we need to find the tax to be paid for every 1 m² of farmland.

This will be

$ 1800/ 2500

= $ 0.72

Hence for a land of area 15,200 m²

The amount to be paid is

$ 15,200 X 0.72

= $10,944

Hence Maple Farms needs to pay $10,944 in taxes

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The superintendent of a school district wants to predict next year's middle school lunch count. The graph shows the results of a survey of randomly selected middle school students. If the district has 5,000 middle school students next year, about how many students plan to buy lunch 1-2 days a week? help pls

Answers

Out of  [tex]5000[/tex] middle school pupils, [tex]3100[/tex]  are predicted to purchase lunches in the upcoming school year.

What are the survey results?

We can predict that 37 kids out of every 100 students—or 37% of students—expect to buy lunch one or two days per week.

Likewise, 25% of students claim to buy lunch three to four days each week. This shows that on average, 25 pupils out of every 100 say they'll follow suit.

13% of students said they won't buy lunch every day of the week, or roughly 13 students out of every 100, don't plan to buy lunch at all.

[tex]5000 \times 0.37 = 1850[/tex]

Students who intend to purchase lunch three to four days each week include:

[tex]5000 \times 0.25 = 1250[/tex]

Students who don't have any plans to purchase lunch include:

[tex]5000 \times 0.13 = 650[/tex]

In light of this, the total number of students planning to buy lunch (either 1-2 or [tex]3–4[/tex]  days a week) is:

[tex]1850 + 1250 = 3100[/tex]

Therefore, out of  [tex]5000[/tex] middle school pupils, [tex]3100[/tex]  are predicted to purchase lunches in the upcoming school year.

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From the expanded equation of the circle, rewrite it in standard form. Then state the center of the circle as an ordered pair and identify the radius.

Answers

the standard form of the equation is: [tex](x - 2)^2 + (y - 7)^2 = 4^2.[/tex]

The center of the circle is (2, 7) and the radius is 4.

What is meant by radius?

Radius is a straight line segment that joins the center of a circle or sphere to any point on its circumference.

To rewrite the equation in standard form, we need to complete the square for both x and y terms:

[tex]y^2 - 14y + x^2 - 4x + 37 = 0[/tex]

[tex]y^2 - 14y + 49 + x^2 - 4x + 4 = -37 + 49 + 4[/tex] (adding and subtracting appropriate constants to complete the square for y and x terms)

[tex](y - 7)^2 + (x - 2)^2 = 16[/tex]

Therefore, the standard form of the equation is:

[tex](x - 2)^2 + (y - 7)^2 = 4^2[/tex]

The center of the circle is (2, 7) and the radius is 4.

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If f(x) = x³, what is the equation of the graphed function?

Answers

Required equation of graphed function is y=x³.

What is equation?

An equation is a statement that shows the equality between two expressions, which may contain one or more variables. Equations are typically written using mathematical symbols, such as "equals" (=), plus (+), minus (-), multiplication (*), division (/), exponentiation (^), and parentheses ().

For example, the equation "2x + 5 = 11" shows that the expression "2x + 5" is equal to the expression "11" when the value of the variable x is 3.

Equations are fundamental in mathematics and have numerous applications in various fields, including physics, engineering, economics, and computer science. They are used to model real-world phenomena, make predictions, solve problems, and develop theories.

The graph of the function f(x) = x³ is a curve that passes through the origin and has a shape similar to that of a "S" curve. The equation of the graphed function is y = x³, where y represents the value of the function at any given x. This means that for any value of x, the corresponding value of y on the graph is given by y = x³.

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SCVCS is renting the Koger Center in downtown Columbia for graduation in June. There is a $500 setup / cleanup fee, and the Koger Center charges $425 per hour to rent. Write an equation to model this situation and find the cost to rent the Koger Center from 10:00 am - 3:00 pm. Read the steps below and fill in the blanks.
y=_____________x+
_________
Substitute x =___________into the equation.
It will cost $_________________ to rent the Koger Center. (Do not add commas or decimals with the answer)

Answers

Answer: Let's first determine the number of hours SCVCS will be renting the Koger Center from 10:00 am to 3:00 pm. There are 5 hours between 10:00 am and 3:00 pm, so the rental time is:

Rental time = 5 hours

Using this information, we can write an equation to model the total cost of renting the Koger Center, y, as a function of the rental time, x, in hours:

y = 425x + 500

Here, the slope of the line represents the rental cost per hour, and the y-intercept represents the setup/cleanup fee.

Substituting x = 5 into the equation, we get:

y = 425(5) + 500

y = 2125 + 500

y = $2,625

Therefore, it will cost $2,625 to rent the Koger Center from 10:00 am to 3:00 pm.

So, the completed expression is:

y = 425x + 500

Substitute x = 5 into the equation.

It will cost $2625 to rent the Koger Center.

Step-by-step explanation:

Do you know the answer? Please show work. Thank you!

Answers

Answer:

The height of the statue is 152ft.

Step-by-step explanation:

305 = 153 + h

152 = h

A right rectangular prism has side lengths of 11.5 cm, 8.4 cm, and 6.5 cm.
What is the volume of the prism​

Answers

Answer: 627.9

Step-by-step explanation: Im pretty sure you just multiply all the numbers.

V= w*h*l=8.4·6.5·11.5=627.9

Answer:

627.9

Step-by-step explanation:

the plot below displays living spaces (apartment, dorm, northside, off-campus) vs. music (does not play an instrument, plays an instrument). what is true about the plot in terms of the relationships between the two variables? select all that apply.

Answers

The relationship is non-existent and positive about the plot in terms of the relationships between the two variables.

A scatter plot is a graph that compares two different sets of data by plotting them as points on a graph. A scatter plot is utilized to investigate the degree of correlation between two different data sets. The points' placement on a scatter plot implies a correlation between the two data sets that can be classified as positive, negative, or non-existent.

The following statements are true about the plot in terms of the relationships between the two variables:There is no association between music and living spaces.Therefore, the answer is: non-existent.The majority of students who play an instrument live off-campus.Therefore, the answer is: Positive.There is no association between the Northside and playing an instrument.Therefore, the answer is: Non-existent.

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An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 27 feet up. The ladder makes an angle of 62^{\circ}

with the ground. Find the length of the ladder. Round your answer to the nearest tenth of a foot if necessary.

Answers

The length of the ladder is 14.36 feet. To the nearest tenth of a foot, the length of the ladder is 14.4 feet.

Explain trigonometric concept?

Trigonometric functions such as sine, cosine, and tangent are used to model and describe physical phenomena like waves, sound, and light.

The given problem can be solved using the trigonometric concept. The basic trigonometric equation used is:

Opposite Side (S) = Adjacent Side (L) x Tan(θ)

Where θ is the angle in degrees and L is the length of the ladder.

In this problem,

θ = 62°

S = 27 ft

Using the equation, we can find the length of the ladder (L).

L = S/Tan(θ)

L = 27/Tan(62°)

L = 27/1.88

L = 14.36 ft

The length of the ladder is 14.36 feet. To the nearest tenth of a foot, the length of the ladder is 14.4 feet.

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The table shows the monthly precipitation $P$ (in inches) for Bismarck, North Dakota, where $t=1$ represents January. Write a model that gives $P$ as a function of $t$ and interpret the period of its graph. Round each value in the equation to the nearest thousandth

Answers

The model P = at + b, which can interpret the period of its graph.

What is an arithmetic progression?

An arithmetic progression is a sequence of numbers where each term is obtained by adding a fixed number to the previous term. In other words, if we have a sequence a1, a2, a3, that is arithmetic, then a2 - a1 = a3 - a2 = d, where d is a common difference.

To write a model that gives P as a function of t, we can use the general form of an arithmetic sequence:

P= at + b

where a is the common difference and b is the initial value of the sequence. To find a and b, we can use the information given in the table. For example, we can use the first two data points to get:

P1 = a(1)+b

P2 = a(2)+b

Subtracting the first equation from the second gives:

P2 - P1 = a(2-1)

​or

a = P2 - P1

Once we have a, we can use either of the equations above to solve for b. For example, using the first equation, we get:

b = P1 − a(1)

Now that we have the model P = at + b, we can interpret the period of its graph.

The period of an arithmetic function is the smallest positive value of k such that f(x) = f(x + k) for all x. In this case, the function is linear, so it has no periodic behavior.

hence, the model P = at + b, which can interpret the period of its graph.

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which statement about bar charts is true? group of answer choices bar charts are typically used to illustrate the pieces within a whole. bar charts cannot be used to compare amounts or quantities. bar charts are more versatile than pie charts and line charts. bar charts can be used to represent only a few types of data.

Answers

The statement "bar charts are more versatile than pie charts and line charts" is true.

The statement "bar charts are more versatile than pie charts and line charts" is true. Bar charts are versatile and can be used to compare data, show trends over time, and compare different categories or groups. They are especially useful for showing data with distinct categories, such as nominal data. In contrast, pie charts are limited in their use because they can only represent parts of a whole, while line charts are best suited for showing trends over time. Bar charts can be customized to display a wide range of information and are a valuable tool for communicating data effectively in a variety of contexts.

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Whats Angle D
Hint: supplementary angle

Answers

Answer:

30 degrees

Step-by-step explanation:

What is the area of this rectangle?

A rectangle with the length labeled 3 and two-sixths meters and the width labeled 2 and three-fourths meters.

five and five-twelfths m2
six and six twenty-fourths m2
six and five-tenths m2
nine and four twenty-fourths m2

Answers

The area of the rectangle is:

length x width

We need to first convert the length and width to the same units. We can convert them to twelfths of a meter, since both 6 and 4 are factors of 12.

Length = 3 and 2/6 meters = 3 x 12/6 + 2/6 = 18/6 + 2/6 = 20/6 = 10/3 twelfths of a meter

Width = 2 and 3/4 meters = 2 x 12/4 + 3/4 = 24/4 + 3/4 = 27/4 twelfths of a meter

Now we can find the area:

Area = length x width = (10/3) x (27/4) = 90/12 = 15/2 = 7.5 square meters

Therefore, the answer is option C) six and five-tenths m² (rounded to one decimal place).

Please help and explain

Answers

Answer: C (61°)

Step-by-step explanation:

∠KIH = 180 - 128

∠KIH = 52

∠GHF = 180 - 86 - 27

∠GHF = 67

∠GHF = ∠KHI

∠K OR ∠IKH = 180 - ∠KIH - ∠KHI

∠K OR ∠IKH = 180 - 52 - 67

∠K OR ∠IKH = 61°

Check the picture below.

a circle's radius is 15 yards what is the circle's circumference

Answers

Answer: 94.25yd = 94.25 yards

Step-by-step explanation:

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The line plot displays the number of roses purchased per day at a grocery store.

A horizontal line starting at 1 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 1 and 10. There are two dots above 6, 7, and 9. There are three dots above 8.

Which of the following is the best measure of variability for the data, and what is its value?

The range is the best measure of variability, and it equals 3.
The range is the best measure of variability, and it equals 9.
The IQR is the best measure of variability, and it equals 3.
The IQR is the best measure of variability, and it equals 9.

Answers

The best measure of variability for the data is None of the given options is correct as the range is the best measure of variability, and it equals 7.

The best measure of variability for the given data would be the range, which is the difference between the maximum and minimum values in the dataset.

From the given line plot, we can see that the minimum value is 1 and the maximum value is 8, which gives a range of 8-1 = 7. Therefore, neither of the options that state the range as 3 or 9 is correct.

The IQR (interquartile range) is another measure of variability, which is the difference between the 75th percentile (Q3) and the 25th percentile (Q1) of the dataset. However, the line plot does not provide enough information to calculate the quartiles or the IQR. Therefore, neither of the options that mention the IQR is correct either.

Hence, the answer is: None of the given options is correct as the range is the best measure of variability, and it equals 7.

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The expression 1.01x1.005 gives the amount of money, in thousands of dollars, in Carter's savings account t years after he opens it.

Answers

the expression 1.01 represents the interest rate applied to the initial amount of 1.005 thousand dollars

In the given expression 1.01 × [tex]1.005^{t}[/tex], the value 1.01 represents the annual interest rate on Carter's savings account. To understand this, let's break down the expression: "1.005" represents the initial amount of money in Carter's savings account, in thousands of dollars. "t" represents the number of years that have passed since he opened the account, and t is the variable that represents this time. "1.01" represents the interest rate on Carter's savings account. The interest rate of 1.01 means that for every 1 dollar in Carter's savings account, he earns an additional 1.01 cents of interest after one year.  Therefore, the expression 1.01 ×[tex]1.005^{t}[/tex]represents the amount of money in thousands of dollars that Carter has in his savings account after t years, with 1.01 being the interest rate applied to the initial amount of 1.005 thousand dollars

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Complete Question

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in Carter's savings account (t) years after he opens it. What does 1.01 represent in this expression?

dr. sanchez conducts a simple random sample of 500 men who became fathers for the first time in the past year. he finds that 23% of them report being unsure of their ability to be good fathers, plus or minus 4%. if dr. sanchez increased his sample size to 1,000, which of the following would happen? group of answer choices the margin of error would become smaller. the true estimate would increase. external validity would become less important. statistical validity would become negatively affected.

Answers

The margin of error would have been much smaller if Dr. Si Sanchez had increased his sample size to 1,000.

A margin of error quantifies the amount of random sampling error in survey results. The smaller the margin of error, the larger the sample size. This is due to the fact that a larger sample size reduces the amount of random variation in the data, allowing the estimate to be more precise.

Dr. Sanchez's margin of error decreases as he increases his sample size from 500 to 1000, because sample size is proportional to margin of error.

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7. What is the measure of ZAOB?

Answers

The measure of ∠AOB is 80°.

Describe Angles?

In geometry, an angle is a figure formed by two rays, or half-lines, that originate from a common endpoint, which is called the vertex. The rays can be thought of as emanating from the vertex and extending infinitely in opposite directions.

The measure of an angle is typically given in degrees, where a full circle is 360 degrees. Angles can be classified according to their size:

An acute angle is less than 90 degrees.

A right angle measures exactly 90 degrees.

An obtuse angle is greater than 90 degrees but less than 180 degrees.

A straight angle measures exactly 180 degrees.

A reflex angle is greater than 180 degrees but less than 360 degrees.

A full angle measures exactly 360 degrees.

In a parallelogram, opposite angles are equal, so we have:

∠OAD = ∠OCB = a2 + b2 (1)

∠OAB = ∠ODC = a1 + d1 (2)

∠OAB + ∠OAD = ∠BOC = 180° (3)

∠OAD + ∠BOC = ∠AOB + ∠ODC = 180° (4)

From (1), (2), and (3), we have:

∠AOB = 180° - (a1 + b2 + a2 + d1)

= 180° - (a1 + a2 + b1 + b2 + c1 + d1 + d2)

= 180° - ∠ABD - ∠BCD

Since ABCD is a parallelogram, we have ∠ABD = ∠BCD. Therefore,

∠AOB = 180° - 2∠ABD

Let x be the measure of angle ABD. Then we have:

∠ABD + ∠BCD = 180°

x + (d1 + d2) = 180° (5)

In triangle ADO, we have:

∠ADO + ∠ODA + ∠OAD = 180°

d2 + x + a2 = 180° (6)

From (5) and (6), we get:

d1 + d2 + a2 + x = 180°

Substituting this expression into (3), we obtain:

∠AOB = 180° - 2(d1 + d2 + a2 + x)

= 80°

Therefore, the answer is (d) 80°.

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The measure of ∠AOB is 80°. The required answer for the given question is option (d). 80°.

Describe Angles?

An angle is a figure in geometry made up of two rays, or half-lines, that start from a single endpoint known as the vertex. You can imagine the

rays coming from the vertex and continuing in opposing directions indefinitely.

A whole circle has 360 degrees, hence an angle is commonly measured in degrees. Angles can be grouped based on their size:

Acute angle is one that is less than 90 degrees.

A right angle has a 90 degree angle.

Obtuse angles are those that are greater than 90 degrees and less than 180 degrees.

A straight angle has a 180 degree length.

Greater than 180 degrees and less than 360 degrees is a reflex angle.

360 degrees makes up a whole angle.

Since opposite angles in a parallelogram are equal, we have:

∠OAD = ∠OCB = [tex]a_2+b_2[/tex] (1)

∠OAB = ∠ODC = [tex]a_1+d_1[/tex] (2)

∠OAB + ∠OAD = ∠BOC = 180° (3)

∠OAD + ∠BOC = ∠AOB + ∠ODC = 180° (4)

From (1), (2), and (3), we have:

∠AOB = 180° - [tex](a_1 + b_2 + a_2 + d_1)[/tex]

= 180° - [tex](a_1 + a_2 + b_1 + b_2 + c_1 + d_1 + d_2)[/tex]

= 180° - ∠ABD - ∠BCD

Due to the parallelogram that is ABCD, we have ∠ABD = ∠BCD.

∠AOB = 180° - 2∠ABD

Let x be the measure of angle ABD. Then we have:

∠ABD + ∠BCD = 180°

x + [tex](d_1 + d_2)[/tex] = 180° (5)

In triangle ADO, we have:

∠ADO + ∠ODA + ∠OAD = 180°

[tex]d_2[/tex] + x + [tex]a_2[/tex] = 180° (6)

From (5) and (6), we get:

[tex]d_1 + d_2 + a_2[/tex] + x = 180°

Substituting this expression into (3), we obtain:

∠AOB = 180° - 2[tex](d_1 + d_2 + a_2 + x)[/tex]

= 80°

Therefore, the answer is (d) 80°.

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PLEASE ANSWER!!!!!
Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. Find the probability that a worker selected at random makes between $400 and $550

Answers

Answer:

49.87%

Step-by-step explanation:

We know the following information:

$400 is the average weekly wage

$50 is the standard deviation (from the average wage)

To solve for the probability that a randomly-selected worker makes between $400-550, we have to solve for the standard score of each end of the range.

First, the standard score (Z) of $400:

[tex]Z = \dfrac{\text{value}-\text{average}}{\text{std deviation}}[/tex]

[tex]Z_{400} = \dfrac{400-400}{50} = 0[/tex]

The standard score of $400 is 0, since it is the average (mean) wage.

Second, the standard score of $550:

[tex]Z_{550} = \dfrac{550-400}{50} = 3[/tex]

The standard score of $550 is 3.

The probability that a worker's weekly wage is between $400 and $550 is equal to the probability that the standard score is between 0 and 3.

So, we can plug the standard scores that we just solved for into a distribution calculator to determine both probabilities.

P(0 < Z < 3) ≈ 49.87%

The following function shows the approximate height (in feet) of a tennis ball t seconds after being dropped from an initial height (in feet). When will a tennis ball hit the ground if it is dropped from an initial height of 400 feet?

Answers

The tennis ball will hit the ground [tex]5[/tex] seconds after being dropped from an initial height of  [tex]400[/tex]feet.

What function shows the approximate height?

To determine when the tennis ball hits the ground, we need to find the value of t when h becomes 0, since at that time the height of the ball is zero, which means it has hit the ground.

So, we can set  [tex]h = 0[/tex] and solve for t:

[tex]0 = -16t^2 + 400[/tex]

Adding 16t^2 to both sides:

[tex]16t^2 = 400[/tex]

Dividing both sides by 16:

[tex]t^2 = 25[/tex]

Taking the square root of both sides:

[tex]t = \pm5[/tex]

Since we cannot have a negative time, we can disregard the negative solution.

Therefore, the tennis ball will hit the ground  [tex]5[/tex] seconds after being dropped from an initial height of  [tex]400[/tex] feet.

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which of the following forms of research or data would be more likely used by a quantitative research study than by a qualitative research study? a. interview data b. personal narrative data c. economic data d. archival data

Answers

The form of "research-data" which is likely to be used by quantitative research study than by a qualitative research study is (c) Economic data.

The Quantitative research depends on numerical data and statistical analysis to answer research questions, while

The Qualitative research depends on non-numerical data such as words, images, or observations to gain an understanding of the context of the phenomenon being studied.

The Economic data, such as data on income, expenditures, or market trends, is typically collected and analyzed using statistical methods, making it more suitable for quantitative research.

Therefore, the correct option is (c) economic data.

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The given question is incomplete, the complete question is

Which of the following forms of research or data would be more likely used by a quantitative research study than by a qualitative research study?

(a) interview data

(b) personal narrative data

(c) economic data

(d) archival data.

QQ ZOOM 6. 2000 square feet of material will be used to form a cylinder-shaped silo. The formula for cylindrical surface area is SA=Tr² + 2arh What is the maximum volume of the silo if V = πr²h Write in the exact answer < PREVIOUS 3 04 Unans​

Answers

The maximum volume of the silo is V = SA/8(4-π), where SA is the surface area of the cylinder formed by the 2000 square feet of material.

To solve this problem

We are given that 2000 square feet of material will be used to form a cylinder-shaped silo. We need to find the maximum volume of the silo.

Let's use the formula for the cylindrical surface area:

SA = πr^2 + 2πrh

We can solve for h in terms of r as follows:

SA = πr^2 + 2πrh

2πrh = SA - πr^2

h = (SA - πr^2) / (2πr)

Now, let's substitute this expression for h into the formula for the volume of a cylinder:

V = πr^2h

V = πr^2[(SA - πr^2) / (2πr)]

V = (SA - πr^2) / 2

We want to find the maximum volume, so we need to find the value of r that maximizes V. To do this, we can take the derivative of V with respect to r and set it equal to zero:

dV/dr = -πr/2 + SA/4π = 0

Solving for r, we get:

r = √(SA/(2π))

Substituting this value of r back into the expression for V, we get:

V = (SA - π(SA/(2π))^2) / 2

V = (SA - SA^2/(4π)) / 2

V = SA/8(4-π)

Therefore, the maximum volume of the silo is V = SA/8(4-π), where SA is the surface area of the cylinder formed by the 2000 square feet of material.

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suppose that we also have reason to believe (from previous studies) that the population standard deviation of credit card debts for this group is $150. what is the sample size needed to reduce the margin of error to $25 for a 95% confidence interval?

Answers

We need a sample size of 35 to reduce the margin of error to $25 for a 95% confidence interval, given that we have reason to believe that the population standard deviation of credit card debts for this group is $150.

To determine the sample size needed to reduce the margin of error to $25 for a 95% confidence interval, we can use the following formula:
n = (z * σ / E)²
Where:
n = sample size
z = z-score corresponding to the desired confidence level (1.96 for 95% confidence)
σ = population standard deviation
E = desired margin of error
Substituting in the given values:
n = (1.96 * 150 / 25)²
n = 34.57
Rounding up to the nearest whole number, we get a sample size of 35. Therefore, we need a sample size of 35 to reduce the margin of error to $25 for a 95% confidence interval, given that we have reason to believe that the population standard deviation of credit card debts for this group is $150.

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Can someone help me with this please

Answers

The value of m arc Q I=94°

What is the arc?

a continuous section of an arc, which is a curved line that forms a portion of a circle of  circumference. a blazing passage of electricity  electrodes through between a gap in a circuit o that called a curved rout

What is properties of arc ?

arcs have two properties is the easiest way . They have length as a component of circumference and, based on the associated central angle, they also have a detectable curvature.

Given arc m Y S=180°,m∠Q B I=137°

We know that,

[tex]mQBI =\frac{1}{2} (m arcYS+marcQI)\\137=\frac{1}{2} (180+marcQI)\\274=180+marcQI\\marcQI=274-180\\marcQI=94[/tex]

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.
Laboratory technicians recorded the population of a species of bacteria each hour for 7 hours. The population in
thousands after x hours can be modeled by the exponential function f(x) = 575(1+040).

Choose the correct answer from each drop-down menu to complete the statements.

The initial population of bacteria when the technicians began recording was BLANK 1.
The population is BLANK 2 at the rate of BLANK 3 per hour.

BLANK 1 ?
805,000
575,000
230,000

BLANK 2 ?
805,000
575,000
230,000

BLANK 3
805,000
575,000
230,000

Answers

The answer for BLANK 1 is 575,000. This is because the exponential function given is f(x) = 575(1+0.40)ˣ.

The answer for BLANK 2 is 805,000.

The correct answer for BLANK 3 is 230,000.

What is exponential function?

An exponential function contains an exponent. It is written as f(x)=b^x where b is the base and x is the exponent. Exponential functions can represent growth or decay, and the graph of an exponential function is an exponential curve.

The correct answer for BLANK 1 is 575,000.

This is because the exponential function given is f(x) = 575(1+0.40)ˣ. This means that the initial population at x=0 is 575,000.

The correct answer for BLANK 2 is 805,000. This is because the exponential function given is f(x) = 575(1+0.40)ˣ.

This means that the population at x=7 hours is 805,000.

The correct answer for BLANK 3 is 230,000. This is because the exponential function given is f(x) = 575(1+0.40)ˣ.

This means that the population increases by 230,000 per hour. This can be calculated by taking the difference between the population at x=7 hours (805,000) and the population at x=0 (575,000) and dividing it by 7 hours.

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-5v^2+31v-6
factor the polynomial I NEED ASAP

Answers

To factor -5v^2+31v-6, we need to find two numbers that multiply to give -30 (-5 x 6) and add up to 31. These numbers are 30 and 1. We can then rewrite the middle term using these numbers and factor by grouping:

-5v^2+30v+v-6
= -5v(v-6)+(v-6)
= (v-6)(-5v+1)

Therefore, -5v^2+31v-6 can be factored as (v-6)(-5v+1).

Answer:

(v - 6)(-5v + 1)

Step-by-step explanation:

[tex] - 5 {v}^{2} + 31v - 6[/tex]

[tex] - 5 {v}^{2} + 30v +v - 6[/tex]

[tex] - 5v(v - 6) +(v - 6)[/tex]

[tex] (v - 6)( - 5v + 1)[/tex]

suppose y varies directly as x and y = 21 when x = 3. find y when x =2

Answers

Answer:

If y varies directly as x, then we can express this relationship using a proportionality constant k, such that:

y = kx

To solve for k, we can use the initial condition given:

y = 21 when x = 3

Substituting these values into the equation above, we get:

21 = k * 3

Solving for k, we get:

k = 7

Now that we have k, we can use the equation to find y when x = 2:

y = kx

y = 7 * 2

y = 14

Therefore, when x = 2, y = 14.

Step-by-step explanation:

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