Rationalize the Denominator $\mathrm { r } = \sqrt { \frac { \mathrm { S } } { 4 \pi } }$

question 249

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
-The radius of a sphere is given by the formula $\mathrm { r } = \sqrt { \frac { \mathrm { S } } { 4 \pi } }$ , where $\mathrm { S }$ is the surface area. If the surface area is 14,607 square inches, what is the radius? Use $3.14$ for $\pi$ , and round your answer to the nearest tenth of an inch.

• A) 60.4 in.
• B) 34.1 in.
• C) 0 in.
• D) 107.1 in.

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