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Zielflug [23.3K]
3 years ago
8

On the Sat the lowest value anyone can score on the math section is 200 and the highest is 800. Jason is a senior retaking the S

AT in March to score higher on the SAT math section. He has been practicing to improve his score from this original test. He is currently taking a practice test with 58 math questions that mocks the SAT, Let X= the number he gets correct on the practice test with a mean of 38 questions and a standard deviation of 4.8 questions. Let Y= Jason’s predicted score on the SAT from a randomly selected practice test modeled by the equation Y=10.34X+200.
Mathematics
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

10 people

Step-by-step explanation:

Parking needs to be paid for but if all friends are going together, they need to only pay once for parking.

The amount spent on just tickets is therefore:

= 243.25 - 15.75

= $227.50.

If $227.50 was for tickets alone, the number of tickets they could buy is:

= Total amount left/ Price of tickets

= 227.50 / 22.75

= 10 people

Step-by-step explanation:

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Elodia [21]

Answer:

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The distance that a Tesla model 3 can travel is normally distributed with a mean of 260 miles and a standard deviation of 25 mil
Alja [10]

Answer:

2.28% probability that a randomly selected Tesla model 3 can travel more than 310 miles

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 260, \sigma = 25

What is the probability that a randomly selected Tesla model 3 can travel more than 310 miles?

This is 1 subtracted by the pvalue of Z when X = 310. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{310 - 260}{25}

Z = 2

Z = 2 has a pvalue of 0.0228

2.28% probability that a randomly selected Tesla model 3 can travel more than 310 miles

3 0
3 years ago
Write an equation that shows how the width (w) depends on the length (l) for rectangles with an area of 24inches squared.
bezimeni [28]
A=length x width
24 = 6 x 4
24 = 8 x 3
24 = 12 x 2
24 = 24 x 1

Area equals length times width so you must find two numbers that multiply together that equal 24
4 0
3 years ago
What is the equation of a line parallel to y=(3)/(4)x-5 and passes through (12,-2)?
Vika [28.1K]

A parallel line has the same slope as the original line. So in this case the slope of the line is also 3/4. Now how do we know if it intersects the point? We need to adjust the y intercept.



Currently, we know the equation of the line is y= 3/4 x + b, where b is the thing we are looking for. We also have a point, which supplies the x and y. Plug that in and solve for b

-2 = (3/4)*(12) + b

You'll get b= -11

So the equation of the parallel line intersecting the point given is y= 3/4x -11.

I am assuming that the slope is 3/4 based on the way you formatted the original equation, but it's the same steps if the slope is different.

3 0
2 years ago
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