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Cerrena [4.2K]
2 years ago
6

(b) Paul uses the function y = 8x + 40 to model the situation. What score does the model predict for 3 h of homework? WILL MARK

AS BRAINLIEST IF YOU SHOW WORK

Mathematics
1 answer:
Bess [88]2 years ago
8 0
Assuming that x is the amount of hours spent doing homework:

Plug in 3 for x

y = 8(3)+40, y=64

That means that since a y value is the test score (because that's what the y-axis is labeled), your predicted test score is a 64.
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mia drove her car at a rate of 60 mph from her home to los angeles. her mother, katrina, made the same trip at a rate of 80 mph,
Ad libitum [116K]

So if Katrina did 80mph and

Mia did 60mph

Lets say the destination is 90 miles away that would take 1hr 30minsfor Mia and

1hr 10mins for Katrina. so that's only a gap of 20minutes not half an hour.

So if the destination was 120miles away it would take Mia 2 hours and Katrina 1hour 30mins that is a gap of 30mins.

ANSWER: 120miles

7 0
3 years ago
Lim x -4 sqrt x+20 - sqrt 12-x x^ 2 +3x-4 =
belka [17]
hey jay sorry for the phone number but i did not respond yet but i will text you back when you leave the office
8 0
2 years ago
Read 2 more answers
What is the solution of StartFraction negative 8 Over 2 y minus 8 EndFraction = StartFraction 5 Over y + 4 EndFraction minus Sta
antiseptic1488 [7]

Answer:

  y = 6

Step-by-step explanation:

  \dfrac{-8}{2y-8}=\dfrac{5}{y+4}-\dfrac{7y+8}{y^2-16} \quad\text{given}\\\\\dfrac{-4(y+4)}{y^2-16}=\dfrac{5(y-4)}{y^2-16}-\dfrac{7y+8}{y^2-16} \quad\text{use common denominator}\\\\-4y-16=5y-20-7y-8 \quad\text{multiply by that denominator}\\\\12=2y \quad\text{add 4y+28}\\\\6=y \quad\text{divide by 2}

6 0
2 years ago
Read 2 more answers
A researcher is studying the monthly gross incomes of drivers for a ride sharing company. (Gross incomes represent the amount pa
Reptile [31]

Answer:

The histogram of the sample incomes will follow the normal curve.

Step-by-step explanation:

According to the Central Limit Theorem if we have an unknown population with mean <em>μ</em> and standard deviation <em>σ</em> and appropriately huge random samples (<em>n</em> > 30) are selected from the population with replacement, then the distribution of the sample mean will be approximately normally distributed.

In this case the researches wants to determine the monthly gross incomes of drivers for a ride sharing company.

He selects a sample of <em>n</em> = 200 drivers and ask them their monthly salary.

As the sample selected is quite large, i.e. <em>n</em> = 200 > 30, the central limit theorem can be applied to approximate the sampling distribution of sample mean by the Normal distribution.

Thus, the histogram of the sample incomes will follow the normal curve.

8 0
3 years ago
If it is April, then there are 30 days in the month.
dimaraw [331]

Answer:

C.

Step-by-step explanation:

It does not have to be April if there are 30 days. If its not April, it can still have 30 days. April does have 30 days.

6 0
2 years ago
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