Question

The volume of a beack ball is 905 square centimeters. Find the radius of the ball to the nearest whole number.​

Answer 1

`r = (3 (v)/(4\pi) {)}^{ (1)/(3) }`

`r = (3 * (905)/(4 * \pi) {)}^{ ^{ (1)/(3) } }`

`r = 6.00049 \: cm`

`r = 6 \: cm`

Hence, the radius of the beach ball is 6 centimeters.

Note: please refer to the attachment.

Answer 2

given:

`v = 905 \: {cm}^(3)`

to find:

the radius of the given ball (sphere).

solution:

`r = \sqrt[3]{ (3v)/(4\pi) }`

`r = \sqrt[3]{ (3 * 905)/(4\pi) }`

`r = 6 \: cm`

therefore, the radius of the ball is 6 cm.

note: refer to the picture I added on how you can change r as the subject of the formula.