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lilavasa [31]
3 years ago
5

Which of the following is the algebraic expression that best describes the height y, if x is the width?

Mathematics
1 answer:
Musya8 [376]3 years ago
4 0
I think the answer is a
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E ( y ) = β 0 + β 1 x 1 + β 2 x 2 + β 3 x 3
GenaCL600 [577]

Answer:

b.For each additional dollar paid to a tutor, we expect exam score to increase by 1.5 points, holding number of hours of sleep per week and number of study hours fixed.

Step-by-step explanation:

Hello!

For any multiple regression model, you can define the estimated slope as "the change or modification of the estimated average of Y when one of the explanatory variables increases one unit while the others remain constant.

In this example the dependant variable is:

Y: Exam score

And you have three explanatory variables:

X₁: salary of the teacher ($).

X₂: hours of sleep per week of a student.

X₃: number of study hours of a student.

The estimated model is ŷ= 65 + 1.5X₁ + 0.2X₂ + 0.5X₃

You need to interpret the estimated slope of the amount paid to the teacher b₁= 1.5

The units of the slope are units of Y by units of X, in this case, Y has no units so it is 1/$.

Then we can say that for every additional dollar paid to the teacher, the estimated mean score of the exam will increase by 1.5 1/$ while the weekly sleep hours and study hours remain constant.

I hope it helps!

5 0
3 years ago
This is for algebra 1
allsm [11]
X+y=12 -- 1
3x+2y=29 -- 2

(1)x2
2x+2y=24 -- 1
(2)-(1)
x=5

Sub x into 1
x+y=12
5+y=12
y=7

Her two numbers are 5 and 7
3 0
3 years ago
What is 5(6p+8)=30p+7+7
Soloha48 [4]

Answer:

There are no solutions.

Step-by-step explanation:

add the like terms

then the distribute the 5 and 8

subtract from both sides

then you will see the answer is no solutions

4 0
2 years ago
Gloria talked on her cell phone for 320 minutes the first month,243 minutes the second month,and 489 minutes the third month.Her
34kurt

Answer: \$175

Step-by-step explanation:

Since Gloria cannot pay for each minute talked but for packages of 200 minutes at the rate of $25 each, we have to make calculations according to these conditions as follows:

Month 1:

Gloria talked on her cell phone for 320 min. So, she had to buy 2 packages of 200 min for \$25 each package.

Hence:

(\$25) 2= \$50

Month 2:

Gloria talked on her cell phone for 243 min. So, she had to buy again 2 packages of 200 min for \$25 each package.

Hence:

(\$25) 2= \$50

Month 3:

Gloria talked on her cell phone for 489 min. So, she had to buy 3 packages of 200 min for \$25 each package.

Hence:

(\$25) 3= \$75

Then, if we take the total Gloria had to pay for the frist three months, we have:

\$50 + \$50 + \$75= \$175

5 0
2 years ago
Eight students were asked how many books they read last summer. Their answers are listed below.
likoan [24]
Mode is 7 and the range is 6
6 0
3 years ago
Read 2 more answers
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