Find 8A. $$A = \left[ \begin{array} { l l l }
3 & 7 & 5 \
3 & 7 & 3
\end{array} \right]$$
A) $\left[ \begin{array} { l l }
7 & 40 \
7 & 24
\end{array} \right]$
B) $\left[ \begin{array} { l l l }
24 & 56 & 40 \
24 & 56 & 24
\end{array} \right]$
C) $\left[ \begin{array} { c c c }
24 & 7 & 5 \
3 & 7 & 3
\end{array} \right]$
D) $\left[ \begin{array} { c c c }
3 & 56 & 5 \
24 & 7 & 24
\end{array} \right]$
E) $\left[ \begin{array} { c c }
24 & 7 \
3 & 56
\end{array} \right]$

Question

Find 8A.   $$A = \left[ \begin{array} { l l l } 
3 & 7 & 5 \
3 & 7 & 3
\end{array} \right]$$  
A) $\left[ \begin{array} { l l } 
7 & 40 \
7 & 24
\end{array} \right]$  
B) $\left[ \begin{array} { l l l } 
24 & 56 & 40 \
24 & 56 & 24
\end{array} \right]$  
C) $\left[ \begin{array} { c c c } 
24 & 7 & 5 \
3 & 7 & 3
\end{array} \right]$  
D) $\left[ \begin{array} { c c c } 
3 & 56 & 5 \
24 & 7 & 24
\end{array} \right]$  
E) $\left[ \begin{array} { c c } 
24 & 7 \
3 & 56
\end{array} \right]$

Quizplus · Accepted Answer

To find $8A$, each element of matrix $A$ is multiplied by 8. Therefore, the resulting matrix is $\left[ \begin{array} { l l l } 24 & 56 & 40 \ 24 & 56 & 24 \end{array} \right]$.

Find 8A A=[375373]A = \left[ \begin{array} { l l l } 3 & 7 & 5 \\3 & 7 & 3\end{array} \right]A=[33​77​53​]

Find 8A $A = \left[ \begin{array} { l l l } 3 & 7 & 5 \\3 & 7 & 3\end{array} \right]$