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\begin{document}

\noindent
\vfil \noindent
\large
\hfil Math 120 C - Autumn 2010 \hfil \pp
\hfil Mid-Term Exam Number Two\hfil  \pp
\hfil November 18, 2010 \hfil \pp
\hfil Answers \hfil \pp
\normalsize

There were two versions of the exam.

\medskip

Version A - Alex starts at (9,6).

\begin{enumerate}
\item 64/65 seconds
\item 27.038 years after 1995
\item 12.941176
\item (a) (3,12) (b) $\dsps p^{-1}(x) = 3 - \sqrt{\frac{x}{2}-6}$
\end{enumerate}

Version B - Alex starts at (8,24).

\begin{enumerate}
\item 15/89 seconds
\item 24.46439
\item 78.9841
\item (a) (1/2, 11/2) (b) $\dsps p^{-1}(x) = \frac{1}{2} - \sqrt{\frac{x}{6} - \frac{11}{12}}$
\end{enumerate}

  
\end{document}


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