Solve the problem.
-If $f$ varies jointly as $\mathrm { q } ^ { 2 }$ and $h$, and $f = 64$ when $q = 4$ and $h = 2$, find $f$ when $q = 2$ and $h = 5$.
A) 20
B) 10
C) 40
D) 8

Question

Quizplus · Accepted Answer

The relationship can be expressed as $f = kq^2h$, where $k$ is the constant of variation. Using the given values, $64 = k(4)^2(2)$, we find $k = 2$. For $q = 2$ and $h = 5$, $f = 2(2)^2(5) = 40$.

Solve the Problem fff Varies Jointly As q2\mathrm { q } ^ { 2 }q2

Solve the Problem $f$ Varies Jointly As $\mathrm { q } ^ { 2 }$