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Questions: Algebra BusinessCalculus
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Evaluate the expression \(\displaystyle A - 9 B\)
\begin{equation*} A = \left[\begin{matrix}-3 & 7 & -2 & 5\\-6 & -8 & 5 & -3\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}6 & 7 & -5 & -8\\2 & 7 & -2 & 4\end{matrix}\right] \end{equation*}
The sum is \(\displaystyle \left[\begin{matrix}-57 & -56 & 43 & 77\\-24 & -71 & 23 & -39\end{matrix}\right]\).
\begin{question}Evaluate the expression $A - 9 B$\newline\begin{equation*} A = \left[\begin{matrix}-3 & 7 & -2 & 5\\-6 & -8 & 5 & -3\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}6 & 7 & -5 & -8\\2 & 7 & -2 & 4\end{matrix}\right] \end{equation*}
\soln{9cm}{The sum is $\left[\begin{matrix}-57 & -56 & 43 & 77\\-24 & -71 & 23 & -39\end{matrix}\right]$. }
\end{question}
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\begin{document}\begin{question}(10pts) The question goes here!
\soln{9cm}{The solution goes here.}
\end{question}\end{document}<p> <p>Evaluate the expression <img class="equation_image" title=" \displaystyle A - 9 B " src="/equation_images/%20%5Cdisplaystyle%20A%20-%209%20B%20" alt="LaTeX: \displaystyle A - 9 B " data-equation-content=" \displaystyle A - 9 B " /> <br> <img class="equation_image" title=" A = \left[\begin{matrix}-3 & 7 & -2 & 5\\-6 & -8 & 5 & -3\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}6 & 7 & -5 & -8\\2 & 7 & -2 & 4\end{matrix}\right] " src="/equation_images/%20%20A%20%3D%20%5Cleft%5B%5Cbegin%7Bmatrix%7D-3%20%26%207%20%26%20-2%20%26%205%5C%5C-6%20%26%20-8%20%26%205%20%26%20-3%5Cend%7Bmatrix%7D%5Cright%5D%2C%20%5Ctext%7B%20and%20%7D%20%5Cquad%5Cquad%20B%20%3D%20%5Cleft%5B%5Cbegin%7Bmatrix%7D6%20%26%207%20%26%20-5%20%26%20-8%5C%5C2%20%26%207%20%26%20-2%20%26%204%5Cend%7Bmatrix%7D%5Cright%5D%20%20" alt="LaTeX: A = \left[\begin{matrix}-3 & 7 & -2 & 5\\-6 & -8 & 5 & -3\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}6 & 7 & -5 & -8\\2 & 7 & -2 & 4\end{matrix}\right] " data-equation-content=" A = \left[\begin{matrix}-3 & 7 & -2 & 5\\-6 & -8 & 5 & -3\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}6 & 7 & -5 & -8\\2 & 7 & -2 & 4\end{matrix}\right] " /> </p> </p><p> <p>The sum is <img class="equation_image" title=" \displaystyle \left[\begin{matrix}-57 & -56 & 43 & 77\\-24 & -71 & 23 & -39\end{matrix}\right] " src="/equation_images/%20%5Cdisplaystyle%20%5Cleft%5B%5Cbegin%7Bmatrix%7D-57%20%26%20-56%20%26%2043%20%26%2077%5C%5C-24%20%26%20-71%20%26%2023%20%26%20-39%5Cend%7Bmatrix%7D%5Cright%5D%20" alt="LaTeX: \displaystyle \left[\begin{matrix}-57 & -56 & 43 & 77\\-24 & -71 & 23 & -39\end{matrix}\right] " data-equation-content=" \displaystyle \left[\begin{matrix}-57 & -56 & 43 & 77\\-24 & -71 & 23 & -39\end{matrix}\right] " /> . </p> </p>