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The volume of a sphere is given by the f...

The volume of a sphere is given by the formula `4 V=pir^3` , where r is the radius of the sphere.Which of the following gives the radius of the sphere in terms of the volume of the sphere?

A

`(4pi)/(3V)`

B

`(3V)/(4pi)`

C

`root3((4pi)/(3V))`

D

`root3((3V)/(4pi))`

Text Solution

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The correct Answer is:
To find the radius of a sphere in terms of its volume, we start with the formula for the volume of a sphere, which is given by: \[ V = \frac{4}{3} \pi r^3 \] ### Step 1: Rearranging the Volume Formula We want to isolate \( r \) in the equation. To do this, we first multiply both sides of the equation by \( \frac{3}{4} \) to eliminate the fraction: \[ \frac{3}{4} V = \frac{3}{4} \left( \frac{4}{3} \pi r^3 \right) \] ### Step 2: Simplifying the Equation On the right side, the \( \frac{3}{4} \) and \( \frac{4}{3} \) will cancel each other out: \[ \frac{3}{4} V = \pi r^3 \] ### Step 3: Dividing by \( \pi \) Next, we divide both sides by \( \pi \) to isolate \( r^3 \): \[ \frac{3V}{4\pi} = r^3 \] ### Step 4: Taking the Cube Root To solve for \( r \), we take the cube root of both sides: \[ r = \sqrt[3]{\frac{3V}{4\pi}} \] Thus, the radius \( r \) of the sphere in terms of its volume \( V \) is: \[ r = \sqrt[3]{\frac{3V}{4\pi}} \] ### Conclusion The final expression gives the radius of the sphere in terms of its volume. ---

To find the radius of a sphere in terms of its volume, we start with the formula for the volume of a sphere, which is given by: \[ V = \frac{4}{3} \pi r^3 \] ### Step 1: Rearranging the Volume Formula We want to isolate \( r \) in the equation. To do this, we first multiply both sides of the equation by \( \frac{3}{4} \) to eliminate the fraction: \[ ...
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