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Digiron [165]
3 years ago
8

PLEASEEEEE HELP ME

Mathematics
2 answers:
Nadya [2.5K]3 years ago
4 0

c. 44.25 trust me I just took the test.

Drupady [299]3 years ago
4 0

Answer:

The correct option is C.

Step-by-step explanation:

The general form of linear regression equation is

y=a+bx           .... (1)

where,

b=\frac{\sum_{i=1}^nx_iy_i-n\overline{x}\overline{y}}{\sum_{i=1}^nx_i^2-n\overline{x}^2}

a=\overline{y}-b\overline{x}

Using the graphing calculator, we get

a=0.0142857

b=2.01071

Substitute the values of a and b in equation (1).

y=0.0142857+2.01071x

The equation of line of best fit is y=0.0142857+2.01071x, where x is number of years and y is height of trees.

Substitute x=22 to find the height of trees after 22 years.

y=0.0142857+2.01071(22)

y=44.2499057

y=44.25

The height of trees after 22 years is 44.25 ft. Therefore the correct option is C.

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Answer:

y = 0

Step-by-step explanation:

- 7 + 21y + 23 = 16

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16 + 21y = 16

21y = 0

y = 0 \div 21

\boxed{\green{y = 0}}

4 0
2 years ago
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diamong [38]
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7 0
3 years ago
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neonofarm [45]
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8 0
3 years ago
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What is the factors of 2x + 4
ra1l [238]

Answer:

2(x+2)

Step-by-step explanation:

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Hope that helps

3 0
3 years ago
(06.04 HC) The graph shows Wilson's science scores versus the number of hours spent doing science homework. A graph titled Wilso
alexandr1967 [171]

Answer:

The answer 55

Step-by-step explanation:

Because it goes up by five for they gave us the amount of point they get for 5 hours and the amount of point he had for 5 hours was 50 so we just needed to add 5 more and 50+5= 55

I don't know if I made myself clear but good luck! :)

5 0
3 years ago
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