Solve Combined Variation Problems
- $r$ Varies Directly as the Square Of

Multiple Choice

Solve Combined Variation Problems
- $r$ varies directly as the square of $s$ and inversely as $t$ .

A) $\mathrm { r } = \frac { \mathrm { ks } ^ { 2 } } { \mathrm { t } }$
B) $r = \frac { k t } { s ^ { 2 } }$
C) $\mathrm { r } = \mathrm { k } + \mathrm { s } ^ { 2 } - \mathrm { t } ^ { 2 }$
D) $\mathrm { r } = \mathrm { ks } ^ { 2 }$