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\noindent
\vfil \noindent
\large
\hfil Math 120 A - Spring 2008 \hfil \pp
\hfil Mid-Term Exam Number Two\hfil  \pp
\hfil May 22, 2008 \hfil \pp
\hfil Answers \hfil \pp
\normalsize

There were two versions.  

Version A - In problem 1, Rita's tree is 8 feet tall today.

\begin{enumerate}

\item 50 years

\item 10.47689 meters

\item 8.76336 cm

\item 
\[
h(x) = \left \{ \begin{array}{ll}
x-1	 & \mbox{if $x>3$,} \\
4x-3 & \mbox{if $2 < x \le 3$, } \\
5	 & \mbox{if $-1 \le x \le 2$, } \\
4-x & \mbox{if $x<-1$}
\end{array}
\right.
\]

\end{enumerate}

Version B - In problem 1, Rita's tree is 10 feet tall today.

\begin{enumerate}

\item 40 years

\item 14.819377 meters

\item 11.8907 cm

\item 
\[
h(x) = \left \{ \begin{array}{ll}
3x-2	 & \mbox{if $x>4$,} \\
5x-6 & \mbox{if $3 < x \le 4$, } \\
6+x	 & \mbox{if $-2 \le x \le 3$, } \\
7-3x & \mbox{if $x<-2$}
\end{array}
\right.
\]

\end{enumerate}




\end{document}


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