Update meanValueTheorem4.tex

meanValueTheorem/exercises/meanValueTheorem4.tex

@@ -29,14 +29,12 @@
 \]
 \begin{exercise}
 Compute the average rate of change of the population during the time interval $[0,4]$.
-\begin{hint}
-Recall, the average rate of change of the population during the time interval $[0,4]$ is given by the expression $\frac{P\left(\answer{4}\right)-P\left(\answer{0}\right)}{4-0}$.
-\end{hint}
+
 The average rate of change of the population during the time interval $[0,4]$ is $\answer{20}$ million cells per week.
 \end{exercise}
 \begin{exercise}
 Suppose that  the function $P$ is continuous on $[0,10)$ and differentiable on $(0,10)$. Then  on the interval $[0,4]$ the function $P$  \wordChoice{\choice[correct]{satisfies}\choice{does not satisfy}} the conditions of the Mean Value Theorem so \wordChoice{\choice[correct]{there exists}\choice{there does not necessarily exist}} a $0<c<4$ such that $P'(c)$ equals the above calculated average rate of change of the population.
 
 That means that at the time $t=c$ the \textbf{instantaneous rate of change} of the population is equal to the \textbf{average rate of change} of the population during the time interval $[0,4]$.
 \end{exercise}
-\end{document}
+\end{document}