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WINSTONCH [101]
3 years ago
7

Consider the following least-squares specification between test scores and the​ student-teacher ratio:

Mathematics
1 answer:
liraira [26]3 years ago
6 0

Answer:

Option B

Step-by-step explanation:

Given that the regression equation using least squares for test scores and student teacher ratio is

Test Score = 557.8 + 36.42 In (Income).

Say if 1% income is increased.

Let income be 100

New income = 101

Then we have

Test score original =

557.8+36.42 Ln 100\\= 725.520

Test score new income

= 557.8+36.42 ln (101)\\= 725.882

Increase = 0.362~0.36

Option B is right.

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Write an equation in slope-intercept form for the line that is parallel to y = 4x - 5 and contains the point (6, "-10).
Jobisdone [24]

Answer:

The desired equation is y = 4x - 34

Step-by-step explanation:

Start with the general slope-intercept form y = mx + b.

The new line is parallel to y = 4x - 5, and so the slope of the new line is the same as that of the old one:  4.  Then we have:

y = 4x + b

Find b.  Do this by substituting 6 for x and -10 for y:

-10 = 4(6) + b.  Then -10 - 24 = b, and b = -34.

The desired equation is y = 4x - 34

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2 years ago
Which number shows 8.356 rounded to the nearest hundred ?
GarryVolchara [31]
I would say 8.4. I think
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4 years ago
Read 2 more answers
Write 3 equivalent ratios for 17:69
Digiron [165]
<h3>♫ :::::::::::::::::::::::::::::: // Hello There ! //  :::::::::::::::::::::::::::::: ♫</h3>

➷  Double the values:

(17 : 69) x 2 = 34 : 138

Multiply both sides by 10:

(17 : 69) x 10 = 170 : 690

Triple the values:

(17 : 69) x 3 = 51 : 207

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4 years ago
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A+4b=-4 a+10b=-16<br>how to solve this problem ​
UNO [17]

Answer:

a,b=4,-2

Step-by-step explanation:

Subtract:

a-a+4b-10b=-4-(-16)

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Plug in:

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3 years ago
A campbell’s soup can is 6 inches tall and has a arduous of 2.5 inches how much paper is needed to make the label? How much room
weqwewe [10]

Step-by-step explanation:

The label of the soup is the lateral area of the cylinder.

The formula for a cylinder is  LA = ph.

The perimeter of a cylinder is the circumference of a circle, 2 times pi times r.

then multiply that answer by the height of 6.

The answer will be in square inches

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3 years ago
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