Mathematics: Aball is released at a height of 8 inches to roll inside a half-cylinder it rolls to a height of 2 inches on the other side of the cylinder on roll 1 each time it rolls up a side of the cylinder the ball reaches a point that is 1over4 as high as it had reached the other side this explicit formula models the height of the ball in inches an=2•(1over4)(n-1) . need a answer

Aball is released at a height of 8 inches to roll

DrDre02

13.03.2022

C) 1/8 inch

Step-by-step explanation:

We are given the explicit formula

$a_n=2(\frac{1}{4})^{n-1}$ , where n is the term number.

The third climb up would be the third term; this means we replace n with 3:

$a_3=2(\frac{1}{4})^{3-1}\\\\a_3=2(\frac{1}{4})^2=2(\frac{1}{4}\times \frac{1}{4})=2(\frac{1}{16})=\frac{2}{16}=\frac{1}{8}$

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ani61

16.09.2020

correct answer is 2800.

Step-by-step explanation:

You take the area of the square which is 20x20 = 400.

There is 5 squares 400x5 = 2000

There is 4 triangles--which is 1/2 the area of 1 square (In this case).

One triangle = 200

200x4 = 800

2000 + 800 = 2800

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