Answer :
Answer:
Concept:
Define Joint variation
Joint variation describes a situation where one variable depends on two (or more) other variables , and varies directly as each of them when the others are held constant. We say z varies jointly as x and y if. z=kxy. for some constant k.
Question:
Write the equation for the following: v varies jointly with x and the square of z.
This will be represented below as
[tex]\begin{gathered} v\propto xz^2 \\ v=kxz^2 \end{gathered}[/tex]Hence,
The final asnwer is
[tex]\Rightarrow v=kxz^2[/tex]