Solve Combined Variation Problems
- $P$ Varies Jointly As $R$ And $S$ And Inversely as the Square Root Of

Multiple Choice

Solve Combined Variation Problems
- $P$ varies jointly as $R$ and $S$ and inversely as the square root of $a$ .

A) $\mathrm { P } = \frac { \mathrm { kRS } } { \sqrt { \mathrm { a } } }$
B) $P = \frac { k R } { S \sqrt { a } }$
C) $\mathrm { P } = \frac { \mathrm { k } ( \mathrm { R } + \mathrm { S } ) } { \sqrt { \mathrm { a } } }$
D) $P = \frac { R S } { k \sqrt { a } }$