PLEASE HELP

Based on data taken from airline fares and distances flown, it is determined that the equation of the least-squares regression line is ŷ = 102.50 + 0.65x, where ŷ is the predicted fare and x is the distance, in miles. One of the flights was 500 miles and its residual was 115.00.


What was the fare for this flight?


102.50

312.50

427.50

542.50

Answers

Answer 1

Answer:

542.50

Step-by-step explanation:

Given:

Least square regression equation :

y = 102.50 + 0.65x + residual

y = predicted fare

x = distance in miles

Intercept = 102.50

Slope = 0.65

Distance in miles, x = 500 miles

y = 102.50 + 0.65(500) + 115

y = 102.50 + 325 + 115

y = 427.5 + 115

y = 542.50

Answer 2

Answer:

Don't know why everyone downvoted the first answer. Maybe you guys suck at clicking. It's correct.

Your answer is 542.50 (D)

102.50 + 65(500) = 427.5

427.5 + 115 = 542.50

You add the residue.

ED2021


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x = 13/12

Step-by-step explanation:

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Answer: 2x and x2 are the same

Step-by-step explanation:

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81 cubes are needed to fill the prism

Step-by-step explanation:

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Patti records the heights and the shoe sizes of the girls on her volleyball
team. She plots the data and makes a scatterplot comparing shoe size and
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Answer:

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Step-by-step explanation:

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Answer:

( A ) p 3 x

Step-by-step explanation:

A can is 7 inches high and has a radius of 2 inches,
r = 2 in
h = 7 in
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Answers

Answer:

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Step-by-step explanation:

to find the volume of a cylinder the formula is V = [tex]\pi[/tex][tex]r^{2}[/tex]h

so first i squared 2

2x2= 4

i then multiplied 4 by the height (7)

4x7 = 28

then times 28 by pi (3.14)

28x 3.14 = 87.92

The volume of cylinder is  87.92 cubic inches

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volume is the amount of space in a certain 3D object.

formula used to  find the volume of cylinder :

V  =  π × r^2 × h

as given ,

r = 2 inch

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so ,

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer: 112.5 cm3

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Step-by-step explanation:

on edg

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Answer:

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Step-by-step explanation:

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Answer:

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Answers

Answer:

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Step-by-step explanation:

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hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

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Step-by-step explanation:


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Step-by-step explanation:

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Answers

Answer:

The answer is below

Step-by-step explanation:

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Someone help please! I'm a confoosed bab:(

Answers

Answer:

[tex]\huge\boxed{A_{\triangle RST}=9units^2}[/tex]

Step-by-step explanation:

(Look at the picture).

Calculate the area of the rectangle and subtract the areas of red triangles.

The formula of an area of a rectangle:

[tex]A_{\boxed{\ }}=a\cdot b[/tex]

We have:

[tex]a=5,\ b=4[/tex]

substitute:

[tex]A_{\boxed{\ }}=5\cdot4=20[/tex]

The formula of an area of a triangle:

[tex]A_\triangle=\dfrac{a\cdot h}{2}[/tex]

substitute:

[tex]A_1=\dfrac{3\cdot3}{2}=\dfrac{9}{2}=4.5\\\\A_2=\dfrac{2\cdot4}{2}=\dfrac{8}{2}=4\\\\A_3=\dfrac{5\cdot1}{2}=\dfrac{5}{2}=2.5\\\\A_1+A_2+A_3=4.5+4+2.5=11[/tex]

Area of ΔRST:

[tex]A_{\triangle RST}=A_{\boxed{\ }}-(A_1+A_2++A_3)[/tex]

substitute:

[tex]A_{\triangle RST}=20-11=9[/tex]

The Langs family drove 225 miles to a beach. Most of their travel was on interstate highways. The Langs drive 65 miles per hour on the last 45 miles of their trip. On average, the Langs traveled 20 miles on one gallon of gas. The gas tank on the Langs' car holds 15 gallons of gas. The Langs had a full tank when their trip began. How many times did they stop to refill the tank before they reach the beach

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Answer:

Step-by-step explanation:

A four foot tall girl cast a shadow of 6 feet. A shade tree cast a shadow of 24feet. What is the height of the tree?
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Answers

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Answers

Answer:

90°, 78°, 12°

Step-by-step explanation:

let the third angle be x then the second angle is 7x - 6

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x + 7x - 6 = 90

8x - 6 = 90 ( add 6 to both sides )

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