Perform the indicated operation, if possible.
-$\left[ \begin{array} { l l } 4 & 1 \ 4 & 6 \ 8 & 6 \end{array} \right] + \left[ \begin{array} { r r } - 9 & 4 \ - 5 & - 1 \ - 1 & 1 \end{array} \right]$

A)
$\left[ \begin{array} { r r } - 5 & 5 \ - 1 & 5 \ 7 & 7 \end{array} \right]$
B)
$\left[ \begin{array} { r r } - 5 & 5 \ 1 & 6 \ 7 & - 7 \end{array} \right]$
C)
$\left[\begin{array}{rr}
-5 & 6 \
-1 & 5 \
7 & 7
\end{array}\right]$

D)
$\left[\begin{array}{rr}
13 & -3 \
9 & 7 \
9 & 8
\end{array}\right]$

Question

Perform the indicated operation, if possible.
-$\left[ \begin{array} { l l } 4 & 1 \ 4 & 6 \ 8 & 6 \end{array} \right] + \left[ \begin{array} { r r } - 9 & 4 \ - 5 & - 1 \ - 1 & 1 \end{array} \right]$

A)
$\left[ \begin{array} { r r } - 5 & 5 \ - 1 & 5 \ 7 & 7 \end{array} \right]$
B)
$\left[ \begin{array} { r r } - 5 & 5 \ 1 & 6 \ 7 & - 7 \end{array} \right]$
C)
$\left[\begin{array}{rr}
-5 & 6 \
-1 & 5 \
7 & 7
\end{array}\right]$

D)
 $\left[\begin{array}{rr}
13 & -3 \
9 & 7 \
9 & 8
\end{array}\right]$

Quizplus · Accepted Answer

To add two matrices, you add their corresponding elements. For this problem:- $4 + (-9) = -5$ and $1 + 4 = 5$- $4 + (-5) = -1$ and $6 + (-1) = 5$- $8 + (-1) = 7$ and $6 + 1 = 7$Thus, the correct answer is the matrix $\left[ \begin{array} { r r } - 5 & 5 \ - 1 & 5 \ 7 & 7 \end{array} \right]$.

Perform the Indicated Operation, If Possible A) [−55−1577]\left[ \begin{array} { r r } - 5 & 5 \\ - 1 & 5 \\ 7 & 7 \end{array} \right]​−5−17​557​​

Perform the Indicated Operation, If Possible A) $\left[ \begin{array} { r r } - 5 & 5 \\ - 1 & 5 \\ 7 & 7 \end{array} \right]$