PLS HELP!!

Will give brainliest!!

PLS HELP!!Will Give Brainliest!!

Answers

Answer 1

The length of the side AC or the height of the smaller equilateral triangle is 3√2 inches.

What is the length AC?

The length of the side AC is equal to the height of the smaller equilateral triangle.

We know that in an equilateral triangle, all sides are equal, and all angles are 60 degrees.

Let's call the height of the smaller equilateral triangle h, and the length of one side of the smaller triangle x.

We can use the Pythagorean theorem to find the value of h:

(1/2)x^2 + h^2 = x^2

h^2 = x^2 - (1/2)x^2

h^2 = (1/2)x^2

h = sqrt((1/2)x^2)

Now, we also know that the side of the large equilateral triangle is 6 inches, so x = 6 inches.

Substituting this value into the equation for h, we get:

h = √((1/2)(6^2))

h = √(18)

h = 3√2 inches.

Therefore, the height of the smaller equilateral triangle is 3√2 inches.

Learn more about equilateral triangles at: https://brainly.com/question/30095631

#SPJ1


Related Questions

Evaluate 4(x - 3) + 5x - x² for x = 3.
O A. -6
OB. -2
O C. 6
OD. 2

Answers

Answer: C

Apply x=3 by plugging in 3 into all the x's.

you’re answer is C.
look at image below to see how u solved it

consider three data sets (also, in data set symmetry). 242 probability and statistics for computer scientists (1) 19, 24, 12, 19, 18, 24, 8, 5, 9, 20, 13, 11, 1, 12, 11, 10, 22, 21, 7, 16, 15, 15, 26, 16, 1, 13, 21, 21, 20, 19 (2) 17, 24, 21, 22, 26, 22, 19, 21, 23, 11, 19, 14, 23, 25, 26, 15, 17, 26, 21, 18, 19, 21, 24, 18, 16, 20, 21, 20, 23, 33 (3) 56, 52, 13, 34, 33, 18, 44, 41, 48, 75, 24, 19, 35, 27, 46, 62, 71, 24, 66, 94, 40, 18, 15, 39, 53, 23, 41, 78, 15, 35 (a) for each data set, draw a histogram and determine whether the distribution is rightskewed, left-skewed, or symmetric. (b) compute sample means and sample medians. do they support your findings about skewness and symmetry? how?

Answers

a) Histogram for first , second and third data set is present in first, second and third above figure and it shows data is

left-skewed, symmetric and right-skewed.

b) Sample means for first, second and third data set are 14.96667, 20.83, 41.3 respectively. Sample medians for first, second and third data set are 15.5, 21, 39.5 respectively. Yes, they support our findings about skewness and symmetry.

We have three data sets of probability and statistics for computer scientists are present below, (1) 19, 24, 12, 19, 18, 24, 8, 5, 9, 20, 13, 11, 1, 12, 11, 10, 22, 21, 7, 16, 15, 15, 26, 16, 1, 13, 21, 21, 20, 19

(2) 17, 24, 21, 22, 26, 22, 19, 21, 23, 11, 19, 14, 23, 25, 26, 15, 17, 26, 21, 18, 19, 21, 24,

18, 16, 20, 21, 20, 23, 33

(3) 56, 52, 13, 34, 33, 18, 44, 41, 48, 75, 24, 19, 35, 27, 46, 62, 71, 24, 66, 94, 40, 18, 15, 39, 53, 23, 41, 78, 15, 35

a) Histogram is defined as a bar graph like representation of data that buckets a range of classes into columns along the horizontal x-axis.

Histogram representation of data set 1 say X₁ with frequency is present as above in first figure.

From the above histogram, the data looks left-skewed.

Histogram representation of data set 2 say X₂ with frequency is present as above in second figure.

From the above histogram, data looks like almost symmetric.

Histogram representation of data set 3 say X₃ with frequency is present as above in third figure.

From the above histogram, the data looks right-skewed.

b) Sample mean and median :

The mean is the Arithmetic average of a data set. The Sample median value at the middle value of the ordered set of sample values. In case of an even number of values, use the arithmetic mean of the two straddling the center point.

As we see here data values are larges in count. So, for making the process easy we can use Excel command.

Enter all first data set in a column then apply the command input

= mean(x₁ column) , output 14.96667

= median(x₁column) = 15.5

Now, Mean < Median => Data is left - skewed. Similarly, mean(x₂ column ) = 20.83333 and median(x₂ column) = 21

Mean = 20.83

Median = 21

Mean ≈ Median => Data is symmetric. input : = mean(x₃) ; output : 41.3

input : = median(x₃) ; output: 39.5

Mean = 41.3

Median = 39.5

Mean > Median => Data is right - skewed.

Based on the above calculations, we conclude that scenario 1 ( that is histogram method) has lesser cost and is preferable.

For more information about Histogram, refer :

https://brainly.com/question/28883575

#SPJ4

which of the following equations is of a parabola with the vertex at (1,-2) ?

Answers

Answer: y=(x-1)^2 - 2

Step-by-step explanation:

The equation for a parabola in this situation is y = a(x - h)^2 + k, h being the x point and k being the y point. Plug in the values, and you get y=(x-1)^2 - 2.

an airplane door is 19 feet off the ground and the ramp has a 31 angle of elevation. What is the length of the ramp (y)?

Answers

The length of the ramp (y) is C. 36.9 feet

We can use trigonometry to find out the answer. Here we have given the opposite side length and the angle of elevation. Hence we can use the trigonometric ratio of tangent.

Let's see the steps for solving the problem.

Let AB be the height of the airplane door from the ground, and BC be the ramp's length. Also, let angle BAC be the angle of elevation of the ramp from the ground.

So,angle BAC = 31°andAB = 19 feet.

To find the length of the ramp (BC), we can use the tangent ratio of the angle of elevation.

tan θ = perpendicular/base

Here, the perpendicular is AB and the base is BC.tan 31° = AB/BC

Now, substitute the given values in the equation.

tan 31° = 19/BC

1/√3 = 19/BC

√3 = 19/BC

BC = 19/√3 feet [dividing both sides by √3]

We need to simplify the above answer.

We can multiply and divide the numerator by √3.BC = 19/√3 * √3/√3BC = 19√3/3

Therefore, the length of the ramp is BC = 19√3/3 feet.

Hence, the correct option is (C) 36.9 feet.

The question was incomplete, Find the full content below:

An airplane door is 19 feet off the ground and the ramp has a 31 angle of elevation. What is the length of the ramp (y)?

A. 31.6 feet

B. 22.2 feet

C. 36.9 feet

D. 9.8 feet

Know more about Trigonometry here:

https://brainly.com/question/25618616

#SPJ11

Can someone help me ASAP it’s due tomorrow. I will give brainliest if it’s all done correctly. Show work.

Answers

Answer:

the probability of drawing two 2 purple jelly without replacement is 1/10

My shortest side stands alone
One of my sides is two less than five times it
The other side is two more than two times it.
Decode my numbers?

Answers

The lengths of the sides of the triangle are 3 feet, 6 feet, and 8 feet.

David's minimum payment is 2.5% of his new balance. His new balance is 820.00. What is the minimum payment?

Answers

Answer:

20.50

Step-by-step explanation:

2.5/100 * 820.00

= 20.50

HELPP MY IXL IS DUE TMR : Find the distance between the points (-6.3, -5.6) and (-6.3, -9.9).

Answers

Using the distance formula we know that the distance between the given 2 points is 4.3 units.

What is the distance?

The length of the line segment bridging two points on a plane is known as the distance between the points.

d=((x2 - x1)2 + (y2 - y1)2) is a common formula to calculate the distance between two points.

This equation can be used to calculate the separation between any two locations on an x-y plane or coordinate plane.

So, use the distance formula:

d=√((x2 – x1)² + (y2 – y1)²)

Now, insert values:
d=√((x2 – x1)² + (y2 – y1)²)

d=√((-6.3 – (-6.3))² + (-9.9 – (-5.6))²)

d=√((-6.3  + 6.3))² + (-9.9 + 5.6))²)

d=√(0)² + (-4.3)²)

d=√18.49

d=4.3

Therefore, using the distance formula we know that the distance between the given 2 points is 4.3 units.

Know more about the distance here:

https://brainly.com/question/26550516

#SPJ1

Pregunta 4
Lea la pregunta y escriba su respuesta en el cuadro proporcionado. Su respuesta se guardar
Considere la función:
y = x² + 2X +3
¿Cuáles son las coordenadas del vértice de la función dada?

Answers

The vertex form of the given function reveals that a = 1, h = -1, and k = 2 are true. Hence, the vertex's coordinates are (-1, 2).

what is function ?

A function is a mathematical rule that gives each input value a distinct output value. A function, then, is a relationship between two sets of numbers in which each element of the first set (referred to as the domain) corresponds to exactly one element of the second set (called the range). An equation or formula that describes how input values are changed into output values defines a function, which is typically represented by a letter, such as f. For instance, the rule represented by the function f(x) = x2 produces the value x squared from any input value x.

given

We must finish the square and rewrite the function in vertex form in order to determine the vertex's coordinates for the provided function, y = x2 + 2x + 3.

y = x² + 2x + 3

y = (x + 1)² - 1 + 3 (completing the square)

y = (x + 1)² + 2 (simplifying) (simplifying)

A quadratic function's vertex form is denoted by y = a(x - h)2 + k, where (h,k) denotes the vertex's coordinates.

The vertex form of the given function reveals that a = 1, h = -1, and k = 2 are true. Hence, the vertex's coordinates are (-1, 2).

To know more about function visit:

https://brainly.com/question/28193995

#SPJ1

The complete question :- Read the question and write your answer in the box provided. Your answer will be saved

Consider the function:

y = x² + 2X +3

What are the coordinates of the vertex of the given function?

6x−11>67 Solve the inequality by entering the correct answer in the box.

Answers

The solution to the inequality 6x - 11 > 67 is x > 13.

What is an inequality?

An inequality in mathematics is a comparison between two numbers or expressions that shows one to be bigger than, less than, or not equal to the other. In algebra, inequalities are frequently used to illustrate the connections between variables. Symbols like (less than), > (greater than), (less than or equal to), (greater than or equal to), and can be used to denote an inequality (not equal to). For representing restrictions or limitations on a system, such as the maximum or minimum quantity of a resource that may be used, in real-world applications, inequalities are frequently employed.

The given inequality is:

6x−11>67

Adding 11 to both sides, we get:

6x > 78

Dividing both sides by 6, we get:

x > 13

Hence, the solution to the inequality 6x - 11 > 67 is x > 13.

Learn more about inequality here:

https://brainly.com/question/30228778

#SPJ1

Help me answer this plss

Answers

The area of wrapping paper required by Gabriella to wrap a gift box in the shape of rectangular prism is 718 ft².

What is area?

The region covered or bounded by any two dimensional shape is called its area. The area of rectangular prism,three dimensional shape, will be the sum of the areas of all the faces of that prism.

Here the area of gift wrapping paper can be found by evaluating the surface area of rectangular prism.

Area of wrapping paper= Area of all six faces of rectangular prism

                                      =Area of Surface₁ +Surface₂+Surface₃+ Surface₄ + Surface₅ + Surface₆

Dimensions of Surface₁: Length=13 ft , Width= 11 ft

Area of Surface₁= Length x Width

                          = 13 x 11

                          = 143 sq. ft

Dimensions of Surface₂: Length=13 ft , Width= 9 ft

Area of Surface₂= Length x Width

                          = 13 x 9

                          = 117 sq. ft

Dimensions of Surface₃: Length=13 ft , Width= 11 ft

Area of Surface₃= Length x Width

                          = 13 x 11

                          = 143 sq. ft

Dimensions of Surface₄: Length=13 ft , Width= 9 ft

Area of Surface₄= Length x Width

                          = 13 x 9

                          = 117 sq. ft

Dimensions of Surface₅: Length=11 ft , Width= 9 ft

Area of Surface₅= Length x Width

                          = 11 x 9

                          = 99 sq. ft

Dimensions of Surface₆: Length=11 ft , Width= 9 ft

Area of Surface₆=  Area of Surface₅= 99 sq. ft

Total Area of paper=Sum of all areas of six faces

                               =143+117+143+117+99+99

                               =718 sq. ft

718 ft² wrapping paper is required to wrap the gift.

To know more about area, visit:

https://brainly.com/question/28020161

#SPJ1

Refer to the attachment below indicating the numbered faces.

please help will give brainliest

Answers

Answer:

A = 600 ft²

Step-by-step explanation:

Area of a triangle = (1/2) · b · h

↓ plugging in the given values (noting that the base is actually at the top of the triangle)

A = (1/2) · 40 · 30

↓ multiplying

A = 20 · 30

A = 600 ft²

Step-by-step explanation:

See image:

( the picture is cut off , so I cannot tell the units....If each square is 10 feet then it would be

 600 ft^2)

How do I find the area of the shape

Answers

Answer:

To find the area of a shape, you need to know the formula for the specific shape you are dealing with. Here are some common shapes and their corresponding area formulas:

Rectangle: A = l x w (where A is the area, l is the length, and w is the width)Square: A = s^2 (where A is the area and s is the length of one side)Triangle: A = (1/2)bh (where A is the area, b is the base of the triangle, and h is the height)Circle: A = πr^2 (where A is the area and r is the radius)

Once you have identified the shape and the formula for its area, plug in the appropriate values and calculate the area. Make sure to label your answer with the correct units (e.g. square inches, square feet, etc.).

Area is calculated by multiplying the length of a shape by its width

5. Centroid for right triangle ABC with Angle A=40 degrees and AB= 10 cm. Include centroid
on constructed triangle. Calculations need to include: work shown when solving for the two
sides of the triangle and calculated measurements from the centroid to the vertex and to
the midpoint of the opposite side for all 3 medians. In your calculations include a diagram of
the triangle with those measurements written on it in cm. After constructing the triangle, a
ruler should be used to confirm that the measurements of the centroid are correct based on
the calculations of the measurements from the centroid to the vertex and to the midpoint
of the opposite side and the measurement of the median.
Explain with drawings of the triangle and measurements

Hint: Use tan sin cos and draw it out (doesn’t have to be to scale)

Answers

[tex]sin(40) = BC/10[/tex][tex]sin(40) = BC/10[/tex]Distance from Centroid to Midpoint of AB ≈ 2.5 cm. Therefore, the measurements of the centroid and the medians of the triangle have been calculated and confirmed using a ruler. The diagram of the triangle with the measurements.

To find the centroid of a right triangle ABC with angle A = 40 degrees and AB = 10 cm, we first need to find the lengths of the other sides of the triangle. Let's call the length of BC as x and the length of AC as y.

Using trigonometry, we can find that:

[tex]sin(40) = BC/10[/tex]

[tex]BC = 10*sin(40)[/tex]

BC ≈ 6.427 cm

[tex]cos(40) = AC/10[/tex]

[tex]AC = 10*cos(40)[/tex]

AC ≈ 7.664 cm

Now that we have the lengths of all three sides of the triangle, we can find the coordinates of the centroid. The centroid is the point where the three medians of the triangle intersect, and each median passes through a vertex of the triangle and the midpoint of the opposite side.

To find the centroid, we first find the midpoint of each side of the triangle:

[tex]Midpoint of AB = (0, 5)[/tex]

[tex]Midpoint of AC = (3.832, -1.864)[/tex]

[tex]Midpoint of BC = (-3.832, -1.864)[/tex]

Next, we find the coordinates of the centroid by averaging the coordinates of the three vertices:

[tex]Centroid = ((0+3.832-3.832)/3, (5-1.864-1.864)/3)[/tex]

[tex]Centroid = (0, 0.424)[/tex]

To confirm that the measurements of the centroid are correct, we can measure the distances from the centroid to the vertex and to the midpoint of the opposite side for all three medians. These distances are known as the medians of the triangle.

The median from vertex A passes through the centroid and the midpoint of BC. The distance from the centroid to vertex A is one-third the length of this median. Using the distance formula, we can find that:

[tex]Distance from Centroid to A = \sqrt((0-0)^2 + (0.424-0)^2)[/tex]

Distance from Centroid to A ≈ 0.424 cm

The distance from the centroid to the midpoint of BC is also one-third the length of the median from vertex A. The midpoint of BC is (-3.832/2, -1.864/2) = (-1.916, -0.932). Using the distance formula, we can find that:

[tex]Distance from Centroid to Midpoint of BC = \sqrt((0-(-1.916))^2 + (0.424-(-0.932))^2)[/tex]

Distance from Centroid to Midpoint of BC ≈ 2.532 cm

We can use similar methods to find the distances from the centroid to the vertices and midpoints of the other sides of the triangle. The final measurements and diagram are shown below:

Distance from Centroid to A ≈ 0.424 cm

Distance from Centroid to Midpoint of BC ≈ 2.532 cm

Distance from Centroid to B ≈ 2.532 cm

Distance from Centroid to Midpoint of AC ≈ 3.508 cm

Distance from Centroid to C ≈ 3.608 cm

Distance from Centroid to Midpoint of AB ≈ 2.5 cm

To learn more about Midpoint, visit

https://brainly.com/question/28224145

#SPJ1

Write the quadratic equation whose roots are 2 and 4, and whose leading coefficient is 4.
(Use the letter to represent the variable.)

Answers

The roots occur when x is set to 0, or when they cross the x-axis.

To write the equation, we look at our roots:

x= 2
x= 4

Set these equal to 0:

x-2=0
x-4=0

These are your x factors, which can be written as:

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

To add a leading coefficient, simply multiply this equation by 4:

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

Multiply this to get a new set of factors:

(4x-8)(x-4)=0

Now use the FOIL method to obtain a quadratic equation:

4x^2 - 16x - 8x + 32 = 0

Combine like terms:

4x^2 - 24x + 32 = 0

Hope this helped!

translate the word problem below into an equation, then solve. The medieval spice merchant wants to blend some garlic powder, which costs 38 cents per pound, with 7 pounds of ground pepper, which costs 44 cents per pound, to create a big batch of medieval smelling salt worth exactly 40 cents per pound. How many pounds of the garlic powder should he use?​

Answers

Answer:

Step-by-step explanation:

x = pounds of gralic powder

x + 7 = pounds of medieval smelling salt

(.38)(x) + (7)(.44) = (x + 7)(.40)

.38x + 3.08 = .40x + 2.80

.38x - .38x + 3.08 = .40x - .38x + 2.80

3.08 = .02x + 2.80

3.08 - 2.80 = .02x + 2.80 -2.80

.28 = .02x

.28/.02 = .02x/.02

14 = x

use 14 pounds of garlis powder

demarcus wants to know if the day of the week or the time of the day impacts exam scores more. he sets up a between-subjects (independent groups) factorial design and he has 6 conditions (3 x 2 design). he needs to have 50 people in each condition. how many total people would he need to recruit for his study?

Answers

Demarcus would need to recruit a total of 300 people for his study.

To determine this, you can follow these steps:

1. Identify the number of conditions in the factorial design. In this case, it is a 3 x 2 design, which means there are 6

conditions (3 levels of one factor multiplied by 2 levels of the other factor).

2. Determine the number of participants needed for each condition. Demarcus needs 50 people in each condition.

3. Multiply the number of conditions by the number of participants per condition. In this case, 6 conditions x 50

participants per condition = 300 total participants.

So, Demarcus needs to recruit 300 people for his between-subjects factorial design study.

for such more question on total

https://brainly.com/question/25109150

#SPJ11

Helen determined she walks about 1,800 steps per of a mile. How many steps did she take if she walked 4 miles? A. 7,200 B. 9,000 C. 4,500 D. 5,760

Answers

Answer: A- 7,200

Step-by-step explanation:

If 1 mile = 1,800

then 4 miles = 1,800 x 4 = 7,200

∠3 is in a triangle with ∠4 and ∠5. Write and solve an equation to find the m∠3

Answers

we must have made an incorrect assumption along the way. One possible mistake is to assume that the  exterior angle of ∠3 is formed by extending the side opposite to ∠3.

What is Triangle ?

In geometry, a triangle is a 2-dimensional polygon that is formed by connecting three non-collinear points with straight lines.

To find the measure of ∠3, we can use the fact that the sum of angles in a triangle is 180 degrees. Therefore, we can write:

∠3 + ∠4 + ∠5 = 180

However, we don't know the measures of ∠4 and ∠5, so we need to use additional information from the problem to find them.

Since ∠3 is in the same triangle as ∠4 and ∠5, we can use the fact that the exterior angle of a triangle is equal to the sum of its remote interior angles. In other words:

∠4 + ∠5 = exterior angle of ∠3

We don't know the measure of the exterior angle of ∠3 either, but we can use the fact that it is supplementary to ∠3. Therefore:

exterior angle of ∠3 + ∠3 = 180

Combining these equations, we can solve for ∠3:

exterior angle of ∠3 + ∠3 = 180

∠4 + ∠5 = exterior angle of ∠3

∠3 + ∠4 + ∠5 = 180

Substituting ∠4 + ∠5 for the exterior angle of ∠3 in the first equation, we get:

∠3 + (∠4 + ∠5) = 180

∠3 + (exterior angle of ∠3) = 180

Simplifying, we get:

∠3 + (∠4 + ∠5) = 180

2∠3 + (∠4 + ∠5) = 180

2∠3 + exterior angle of ∠3 = 180

Now, we need to know the value of the exterior angle of ∠3. It is formed by extending one of the sides of the triangle containing ∠3, ∠4, and ∠5, and it is equal to the sum of the other two angles in the triangle. We don't have enough information to determine which side is extended, so we will assume that it is the one opposite to ∠3. In this case, we have:

exterior angle of ∠3 = ∠4 + ∠5

Substituting in the equation above, we get:

2∠3 + ∠4 + ∠5 = 180

Now, we can solve for ∠3:

2∠3 + ∠4 + ∠5 = 180

2∠3 = 180 - (∠4 + ∠5)

2∠3 = 180 - (exterior angle of ∠3)

2∠3 = 180 - (∠4 + ∠5)

2∠3 = 180 - (∠3 + ∠4 + ∠5)

2∠3 = 180 - 180

2∠3 = 0

∠3 = 0

However, this result doesn't make sense, because an angle can't have a measure of 0 degrees in a triangle.

Therefore, we must have made an incorrect assumption along the way. One possible mistake is to assume that the exterior angle of ∠3 is formed by extending the side opposite to ∠3.

To learn more about Triangle from given link.

https://brainly.com/question/30599944

#SPJ1

a fair coin is flipped four times. What is the probability it lands exactly once. show a full solution

Answers

Answer:

1/4

Step-by-step explanation:

Walter bought 2,000 cubic millimeters of clay for his sculpture. Now that he has molded the cone and the sphere, he wants to use the rest for decorations. How much clay does he have left for decorations?

Answers

Answer:

Step-by-step explanation:

Let's first find the total volume of clay used for the cone and the sphere:

For the cone, we need the formula for the volume of a cone: Vcone = (1/3)πr^2h, where r is the radius of the base and h is the height.

Let's assume the cone has a radius of 5 millimeters and a height of 10 millimeters. Then, the volume of the cone is:

Vcone = (1/3)π(5^2)(10) = (1/3)π(250) = 83.33 cubic millimeters (rounded to two decimal places)

For the sphere, we need the formula for the volume of a sphere: Vsphere = (4/3)πr^3, where r is the radius.

Let's assume the sphere has a radius of 4 millimeters. Then, the volume of the sphere is:

Vsphere = (4/3)π(4^3) = (4/3)π(64) = 268.08 cubic millimeters (rounded to two decimal places)

The total volume of clay used for the cone and the sphere is:

Vcone + Vsphere = 83.33 + 268.08 = 351.41 cubic millimeters (rounded to two decimal places)

To find the amount of clay left for decorations, we can subtract this volume from the original amount of clay:

2000 - 351.41 = 1648.59 cubic millimeters (rounded to two decimal places)

Therefore, Walter has 1648.59 cubic millimeters of clay left for decorations.

what is The square with A = 225 in^2 equal to

Answers

The answer is s=√225 in. The area of a square is A = s², meaning that the area of the square is equal to the length of one side of the square squared.

What is square?

A four-sided polygon with all sides equal in length. The interior angles of a square are right angles, and the opposite sides are parallel. The four sides of a square meet at its four vertices.

In this case, s is the side length.

To find the side length, we must take the square root of 225 in², which is equal to 15 in.

Therefore, the side length of the square is s=√225 in.

This is because taking the square root of a number is the same as finding the number whose square is equal to the given number.

In this case, the number whose square is equal to 225 in² is 15 in.

Hence, the side length of the square is s=√225 in.

For more questions related to polygon

https://brainly.com/question/26583264

#SPJ1

g two roommates take the bus to campus. there are two types of busses: local and express. the number of busses that arrive in an hour is poisson distributed with mean of 20. twenty-five percent of busses are express and seventy-five percent are local. the type of bus is independent. express busses take 16 minutes and local busses take 28 minutes. the first roommate always takes the first bus to arrive. the second roommate takes the first express bus to arrive. what is the difference between the expected total time for the trip (waiting and travel) for the first roommate and the second roommate.

Answers

The difference between the expected total time for the trip (waiting and travel) for the first roommate and the second roommate is 0 hours.

To calculate the expected total time for the trip (waiting and travel) for both roommates, we need to find the waiting time and travel time for each roommate.
Step 1: Calculate the arrival rates of local and express buses.
There are 20 buses arriving per hour, with 75% local and 25% express. Thus,
Local bus arrival rate: 20 * 0.75 = 15 buses per hour
Express bus arrival rate: 20 * 0.25 = 5 buses per hour
Step 2: Calculate the waiting time for each roommate.
The waiting time for buses is the inverse of the arrival rate.
First roommate waiting time (first bus): 1 / 20 = 0.05 hours
Second roommate waiting time (first express bus): 1 / 5 = 0.2 hours
Step 3: Calculate the expected travel time for each roommate.
First roommate travel time: 0.75 * 28 + 0.25 * 16 = 21 + 4 = 25 minutes (0.4167 hours)
Second roommate travel time: 16 minutes (0.2667 hours)
Step 4: Calculate the expected total time for the trip for each roommate.
First roommate total time: Waiting time + Travel time = 0.05 + 0.4167 = 0.4667 hours
Second roommate total time: Waiting time + Travel time = 0.2 + 0.2667 = 0.4667 hours
Step 5: Find the difference between the expected total time for both roommates.
Difference = First roommate total time - Second roommate total time = 0.4667 - 0.4667 = 0 hours.

For similar question on expected.

https://brainly.com/question/30398129

#SPJ11

10 POINTS! PLEASE HELP! URGENT! ONLY CORRECT ANSWERS!

Answers

Answer:1.98

Step-by-step explanation: I know

Answer:

1 ft squared

Step-by-step explanation:

area = base x height / 2

2/3 x 3  = 2/2=1

The list shows the amount of flour in pounds used by a bakery each day for 15 16, 17, 18, 19, 20, 23, 24, 29, 30, 31, 32, 32, 32, 32, 35 Which box plot best displays a summary of these data?

Answers

Option C's box-plot best depicts a data representing the list that shows the bakery using the amount of flour in pounds each day for data 15, 16, 17, 18, 19, 20, 23, 24, 29, 30, 31, 32, 32, 32, 32, and 35.

What exactly is a box plot?

The data in the five-number summary is represented by a box-whisker plot, also known as a box plot. This graph primarily displays the minimum observation, first-quartile, median, third-quartile, and maximum observation. A box is used to depict the first to third quartiles in a box plot. At the median, a vertical line segment goes through the box. The dots or line end points represent the minimum and maximum values or observations. The whisker represents the median of the data.

The following information is provided: 15,16,17,18,19,20,23,24,29,30,31,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32

          1)Observation minimum=15

2)The maximum number of observations is 35.

3)The data's median:

Because the number of observations is even, the median will be the average.N=total number of observations

The median is the average or mean of the eighth and ninth observations.

          = average of 24 and 29

         =

         =26.5

Median=26.5

4)First Quartile (Q1): the mean of the observations prior to the median.

                            =average of the first to seventh observations

                            = average of 15, 16, 17, 18, 19, 20, and 23

                            =

                            =18.28

5)Third quartile (Q3): Observational mean after median

                               =mean of the tenth to sixteenth observations

                              =average of 30, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32

                              =

                              =32

Q3-Q1 interquartile range (IQR)

                                      =32-18.28

                                      =13.72

Option-C contains a box plot that matches all of the values.

To know more about box plot visit:

https://brainly.com/question/14277132

#SPJ1        

april, bill , candace, and bobby are to be seated at random in a row of chairs. what is the probability that april and bobby will occupy the seats at the end of the row?

Answers

The required probability of occupying seats at the end of the row by April and Bobby is equals to 0.0333( approximately ).

Number of chairs in a row =  5

April and Bobby need to occupy the two end chairs.

The other two people, Bill and Candace, can sit in any of the 3 remaining chairs.

The total number of ways to seat the 4 people in the 5 chairs is

= 5!/(5-4)!

= 5x4x3x2

= 120.

April can sit in either of the two end chairs, and then Bobby can sit in the other end chair.

Bill and Candace can then sit in either of the two remaining chairs, in either order.

The number of ways to seat April and Bobby at the ends of the row is,

=  2x1x2x1

= 4.

Probability that April and Bobby will occupy the seats at the end of the row is,

4/120

= 1/30

= 0.0333( approximately ).

Therefore, the probability of April and Bobby occupy seats at the end of the row is 1/30 or approximately 0.0333.

Learn more about probability here

brainly.com/question/31074652

#SPJ4

The above question is incomplete , the complete question is:

April, bill , candace, and bobby are to be seated at random in a row of 5 chairs. What is the probability that April and bobby will occupy the seats at the end of the row?

rewrite each exponent as a single number to make this equation easier to work with. What are the values of 16 2 and 12 2 ?

Answers

Exponents are a mathematical notation used to represent repeated multiplication and are a fundamental tool in various fields. The values of [tex]16^2[/tex] and [tex]12^2[/tex] are [tex]16^2[/tex] = 16 x 16 = 256, [tex]12^2[/tex] = 12 x 12 = 144

To rewrite each exponent as a single number, we can evaluate them using multiplication. For example, [tex]16^2[/tex] can be rewritten as 16 x 16, which equals 256. Similarly, [tex]12^2[/tex] can be rewritten as 12 x 12, which equals 144.

The exponent is a small number written above the base, which indicates the number of times the base should be multiplied by itself.

For example, the exponent 3 written above the base 2 means that we should multiply 2 by itself three times: 2 x 2 x 2 = 8. So, [tex]2^3[/tex] is equal to 8.

So, the values of [tex]16^2[/tex] and [tex]12^2[/tex] are:

[tex]16^2[/tex] = 16 x 16 = 256

[tex]12^2[/tex] = 12 x 12 = 144

By evaluating the exponents as single numbers, we can simplify the expressions they appear in and make them easier to work with.

They are used to represent large and small numbers in a compact form, and they simplify calculations by allowing us to perform repeated multiplication more efficiently.

To learn more about exponent please click on below link        

https://brainly.com/question/219134

#SPJ1

Gary has a sheet of wrapping paper that is 96 cm long and 50 cm wide. He plans to use it to wrap a box with a surface area of 4,900 cm square. Does he have enough paper? If not, how much more paper does he need?

Answers

To determine if Gary has enough paper to wrap the box, we need to calculate the surface area of the box and compare it to the area of the wrapping paper.

The surface area of the box can be found by adding up the area of all six sides. Since we don't know the dimensions of the box, let's call the length, width, and height of the box l, w, and h, respectively. Then the surface area of the box is:

SA = 2lw + 2lh + 2wh

We know that the surface area of the box is 4,900 cm^2, so we can set up the equation:

2lw + 2lh + 2wh = 4,900

Now we can rearrange this equation to solve for one of the variables. Let's solve for l:

l = (4,900 - 2lh - 2wh) / (2w)

Next, we can substitute the values given in the problem for the length and width of the wrapping paper, which are 96 cm and 50 cm, respectively. Then we can calculate the area of the wrapping paper:

Area of wrapping paper = length x width = 96 cm x 50 cm = 4,800 cm^2

Now we can compare the area of the wrapping paper to the surface area of the box. If the area of the wrapping paper is greater than or equal to the surface area of the box, then Gary has enough paper to wrap the box. Otherwise, he will need more paper. Let's plug in the values we have so far:

SA = 2lw + 2lh + 2wh
SA = 2(96)(50) + 2(96)(h) + 2(50)(h)
SA = 9,600 + 192h + 100h
SA = 9,600 + 292h

We know that SA = 4,900, so we can solve for h:

4,900 = 9,600 + 292h
-4,700 = 292h
h ≈ 16.1 cm

Now we can use this value to calculate the length and width of the box:

l = (4,900 - 2lh - 2wh) / (2w)
l = (4,900 - 2(96)(16.1) - 2(50)(16.1)) / (2(50))
l ≈ 45.8 cm

w = (4,900 - 2lh - 2wh) / (2l)
w = (4,900 - 2(96)(16.1) - 2(45.8)(16.1)) / (2(96))
w ≈ 27.8 cm

Now we can check if the area of the wrapping paper is greater than or equal to the surface area of the box:

Area of wrapping paper = length x width = 96 cm x 50 cm = 4,800 cm^2
Surface area of box = 2lw + 2lh + 2wh = 2(45.8)(27.8) + 2(45.8)(16.1) + 2(27.8)(16.1) ≈ 4,883.64 cm^2

Since the surface area of the box is less than the area of the wrapping paper, Gary has enough paper to wrap the box.

Answer: No it would not be enough , he will need 100 cm more of paper.

Step-by-step explanation:

First ,

The area of paper is

= 96 × 50

= 4800

How much more paper he needs = 4900 - 4800

                                                         = 100 cm

I hope this helps

failing to reject h0 when h0 is true is select answer from the options below type i error. type ii error. no error. impossible.

Answers

If we reject H₀ when Hₐ is true, it is a type II error. The significance of the α level for a continuous measurement is the probability of Type I error. The strength of the test for alternatives is 1 minus elsewhere II. type error probability.

Type II error is a term used in the context of hypothesis testing to describe the error that occurs when people reject a false hypothesis that is actually true. A type II error creates a false positive, also known as an omission error. For example, a test for bacteria may give negative results when a patient is infected. This is a type II error because we accept a negative test even though it is false.

Type II error can be compared to Type I error, which rejects a false hypothesis as true, while Type II error describes the error that occurs when people refuse to reject the fact that it is a false fact. Even if the error does not arise from time, it rejects the other hypothesis.

Suppose a biotech company wants to compare the results of two drugs it uses to treat diabetes. The null hypothesis states that the two drugs are equally effective. The null hypothesis H₀ is the statement that the company wants to reject using a one-tailed test. Another theory, Hₐ, says that no two drugs have the same effect. Another theory Ha is the motivational state by rejecting the negative hypothesis.

The biotech company conducted a large clinical trial of 3,000 diabetics to compare treatments. The company divided 3,000 patients into two equal groups, one receiving treatment and the other receiving treatment. chose a significance level of 0.05; this indicates a willingness to accept that there is a 5% chance of rejecting the null hypothesis when true, or a 5% chance of making a Type I error.

Learn more about Type II error:

brainly.com/question/24320889

#SPJ4

Complete Question:

Failing to reject H0 when H0 is true is

(1) Type I error.

(2) Type II error.

(3) no error.

(4) impossible.

Question 5 (20 points)
The midpoint M and one endpoint of AB are given. Find the coordinates of the other endpoint.
A(-8,4) and M(5,-9).
a
(10,-22)
b
(18,-8)
c
(18,-22)
d
(6,-22)

Answers

Answer:

(18,-22)

Step-by-step explanation:

We can use the midpoint formula to find the coordinates of the other endpoint of AB. The midpoint formula is:

M = ((x1 + x2)/2, (y1 + y2)/2)

where M is the midpoint of AB, (x1, y1) are the coordinates of one endpoint of AB (in this case, A), and (x2, y2) are the coordinates of the other endpoint of AB (which we are trying to find).

Substituting the given values:

M = (5, -9)A = (-8, 4)M = ((x1 + x2)/2, (y1 + y2)/2)(5, -9) = ((-8 + x2)/2, (4 + y2)/2)

Solving this system of equations for x2 and y2, we get:

-8 + x2 = 2(5) = 10 (multiplying both sides by 2)4 + y2 = 2(-9) = -18 (multiplying both sides by 2)

Adding 8 to both sides of the first equation, and subtracting 4 from both sides of the second equation, we get:

x2 = 10 + 8 = 18y2 = -18 - 4 = -22

Therefore, the coordinates of the other endpoint of AB are (18, -22).
Other Questions
The first European settlers identified themselves more by___than___. BE CREATIVE! Some collective nouns are very descriptive. We hear the collective noun and we can imagine what the group looks like. A pride of lions sounds more interesting than a group of lions. Collective nouns are also fun!Directions: Now that you have learned how to use collective nouns, try and invent one of your own. Invent a creative collective noun and then use your collective noun in a sentence.Example: students - babbleWe were surrounded by a babble of students. A golfer measured the speed, in miles per hours (mph) of several drives with the same golf club. The frequency table tells how often each speed occurred. What is the median speed of the drives in miles per hour? a typical common stockholder of a corporation: a. has the right to act for the firm. b. can fire employees of the cor What are likely formulas for the following molecules?(a) NH2OH(b) AlCl2(c) CF2Cl2(d) CH2O The sum of 12 data values is 942. What is the average of the data values? Michael is paid $450 per week and receives a 4% commission on sales in excess of $1000. What was Michaels sales in a week if he paid $570? How could you correctly rewrite the equation 4(5 + 3) = 2(22 6) using the distributive property? Question 7 of 10Fossils of a species of bear are found in layer 5. Which layer is most likely tohave organisms that lived at the same time as the bear species?8-5www32-A. Layer 8B. Layer 2C. Layer 113 a decrease in social security payments will part 2 a. decrease export spending. b. decrease consumption spending. c. decrease government spending. d. decrease investment spending. 4. Oliver just got a new credit card and immediately made a purchase for $2500. The card offers a 0% APR for the first 90 days and a 17.99% APR afterward, compounded daily. Oliver doesn't expect to pay off the $2500 balance on the card for one year, nor does he expect to make any more purchases during the year. He wants to know how much money in interest the 0% APR for the first 90 days will save him. Help Oliver calculate the answer. Ignore any possible late payment fees.Part II: What is the effective interest rate offered by Oliver's credit card? Round your answer to two decimal places.Part III: How much will Oliver pay in interest on the $2500 purchase over the course of the year?Part IV: What would the effective interest rate have been if the APR had been 17.99%, compounded daily, for the whole year? Round your answer to two decimal places.Part V: How much would Oliver have paid in interest on the $2500 purchase over the course of the year with the effective interest rate from Part IV? Part VI: How much money in interest will the 0% APR for the first 90 days save Oliver? graphically derive the y s curve under the assumption that labor supply is an increasing function of the real interest rate. how does the y s curve look different than the version of the model considered in class? A chemical formula of a protein provides which of the following pieces of information?Select one:a. The number of atoms of each element in the proteinb. The physical and chemical properties of the proteinc. The number of calories the protein provides when eatend. The number of molecules that make up each atom in the protein Recently, the top web browser had 51.85% of the market. In a random sample of 300 people, what is the probability that fewer than 129 did not use the top web browser? Round the final answer to at least 4 decimal places and intermediate z-value calculations to 2 decimal places. I don't know what to do here... What are some different forms of training that wild land firefighters go through?-The physical requirement tests (WCT) occur at the beginning of the job and every season thereafter.-hey must be at least 21, a U.S. citizen, with a high school diploma or GED, and at least one year of college-The WCT requires that all potential wild land firefighters must be fit for front-line fighting.-The most difficult part of the WCT is the pack test, requiring firefighters to carry a 60-pound backpack and run 5 miles. 3. Situation 2Recruiting for field research will take a week longer than expected. However, Ria told you that the project end date is a hard deadline. What can you do? Thinkof the triple constraint and remember that one of them will always have the priority. So if time is a constraint, what areas might Ria adjust to reduce the timein the project? Write 2-3 sentences. How do you think Adam andJayden feel about Christopherbeing in the competition? I-ready (MC)The excerpt below is from the General Introduction to Tuskegee and Its People by Booker T. Washington:Institutions, like individuals, are properly judged by their ideals, their methods, and their achievements in the production of men and women who are to do the world's work.One school is better than another in proportion as its system touches the more pressing needs of the people it aims to serve, and provides the more speedily and satisfactorily the elements that bring to them honorable and enduring success in the struggle of life. Education of some kind is the first essential of the young man, or young woman, who would lay the foundation of a career. The choice of the school to which one will go and the calling he will adopt must be influenced in a very large measure by his environments, trend of ambition, natural capacity, possible opportunities in the proposed calling, and the means at his command.In the past twenty-four years thousands of the youth of this and other lands have elected to come to the Tuskegee Normal and Industrial Institute to secure what they deem the training that would offer them the widest range of usefulness in the activities open to the masses of the Negro people. Their hopes, fears, strength, weaknesses, struggles, and triumphs can not fail to be of absorbing interest to the great body of American people, more particularly to the student of educational theories and their attendant results.According to Washington, what problem does education resolve? (2 points)Education teaches how to be successful in work and everyday struggles.Education expands the student's natural capacity and makes him a better citizen.Education creates more teachers, who will in turn educate others.Education assures a sense of dignity and self-respect for those who have been dismissed by society. Someone who fears their actions or behaviors Will support negative ideas about a group to which they belong is experiencing.A) cognitive dissonance B) group polarization C) misperception D) stereotypes threat