Perform the indicated operation, whenever possible.
-$$\left[ \begin{array} { r r }
- 9 & - 9 \
- 8 & - 2 \
8 & 7
\end{array} \right] + \left[ \begin{array} { l l }
5 & - 4 \
6 & - 2 \
2 & - 9
\end{array} \right]$$

A) $\left[ \begin{array} { r r } - 4 & - 13 \ - 2 & - 4 \ 10 & - 2 \end{array} \right]$

B) $\left[ \begin{array} { l l } - 4 & - 2 \ - 2 & - 4 \ 10 & - 2 \end{array} \right]$

C) $\left[ \begin{array} { r r } - 14 & - 5 \ - 14 & 0 \ 6 & 13 \end{array} \right]$

D) $\left[ \begin{array} { r r } - 4 & - 13 \ 2 & - 2 \ 10 & 2 \end{array} \right]$

Question

Perform the indicated operation, whenever possible.
-$$\left[ \begin{array} { r r } 
- 9 & - 9 \
- 8 & - 2 \
8 & 7
\end{array} \right] + \left[ \begin{array} { l l } 
5 & - 4 \
6 & - 2 \
2 & - 9
\end{array} \right]$$

A) $\left[ \begin{array} { r r } - 4 & - 13 \ - 2 & - 4 \ 10 & - 2 \end{array} \right]$

B) $\left[ \begin{array} { l l } - 4 & - 2 \ - 2 & - 4 \ 10 & - 2 \end{array} \right]$

C) $\left[ \begin{array} { r r } - 14 & - 5 \ - 14 & 0 \ 6 & 13 \end{array} \right]$

D) $\left[ \begin{array} { r r } - 4 & - 13 \ 2 & - 2 \ 10 & 2 \end{array} \right]$

Quizplus · Accepted Answer

To add two matrices, add their corresponding elements: $(-9+5, -9-4), (-8+6, -2-2), (8+2, 7-9)$ which simplifies to $(-4, -13), (-2, -4), (10, -2)$.

Perform the Indicated Operation, Whenever Possible A) [−4−13−2−410−2]\left[ \begin{array} { r r } - 4 & - 13 \\ - 2 & - 4 \\ 10 & - 2 \end{array} \right]​−4−210​−13−4−2​​

Perform the Indicated Operation, Whenever Possible A) $\left[ \begin{array} { r r } - 4 & - 13 \\ - 2 & - 4 \\ 10 & - 2 \end{array} \right]$