Mathematics: Aparabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve d(r) = 0.145r2. what is the radius when the depth is 8 inches? round to the nearest thousandth of an inch.

Aparabolic listening device is shaped such that

Ответ:

ghernadez

07.01.2022

$\large \boxed{\text{7.428 in}}$

Step-by-step explanation:

$\begin{array}{rcl}D & = & 0.145 r^{2}\\8 & = & 0.145 r^{2}\\55.17 & = & r^{2}\\r & = & \sqrt{55.17}\\& = & \textbf{7.428 in}\\\end{array}\\\text{The radius is $\large \boxed{\textbf{7.428 in}}$ when the depth is 8 in.}$

The graph shows the profile of your parabolic listening device,

Aparabolic listening device is shaped such that the depth of the bowl depends on its radius and can

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Ответ:

evazquez

03.05.2021

Mathematics

2,-5

Step-by-step explanation:

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Aparabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve d(r) = 0.145r2.
what is the radius when the depth is 8 inches? round to the nearest thousandth of an inch.

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