9. The Shanghai Maglev Train is ane of the fastest trains in the world, traveling about 2,144 miles in 8 hours. a. How many miles does it travel in one hour?

\begin{tabular}{l} Select all of the following which describe the physical development of three-year-olds. \\ \( \begin{array}{l}\text { Crawling } \\ \text { Continuing to have temper tantrums } \\ \text { Growing slow and steady } \\ \text { Hopping on one foot } \\ \text { Playing with play dough } \\ \text { Walking up and down stairs } \\ \text { Walking with help }\end{array} \) \\ \hline\end{tabular}

the following can be separated chemically, except a) water. b) methane. c) mercury oxide. d) Magnesium.

Solve the equation and check your solution. (If there is no solution, enter NO SOLUTION.) \[ \frac{12}{(x-1)(x+3)}=\frac{3}{x-1}+\frac{3}{x+3} \] \( x=\square \)

II SERIE (valor 10 pts. 2 pts. c/u) INSTRUCCIONES: Realiza las siguientes evaluaciones de funciones. \( \begin{array}{ll}\text { 1) } F(x)=\frac{x^{2}-1}{x-3} \\ \text { 2) } F(x)=\frac{2 x-1}{x+4} \\ \text { 3) } F(x)=x^{2}+3 x+10 \\ \text { 4) } F(x)=\frac{x-5}{x+2} \\ \text { 5) } F(x)=10 \cos x & x=-6\end{array} \)

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