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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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user100 [1]

Answer:

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Step-by-step explanation:

Consider the provided information.

It is given that the we have a square with side length "s" lies in a plane perpendicular to a line L.

Also One vertex of the square lies on L.

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Suppose there is a square piece of a paper which is attached with a wire through one corner. As you blow it up it spins around on the wire.

This square moves a distance h along​ L, and generate a​ corkscrew-like column with square​.

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The volume of the column is the area of square times the height.

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s^2h

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Part (B) What will the volume be if the square turns twice instead of once?

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Hence, the volume be s^2h=\frac{s^2h}{2}+\frac{s^2h}{2}.

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Step-by-step explanation:

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