Perform the indicated matrix operations.
-Let $A = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 A + 4 B$.

A) $\left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$

B) $\left[ \begin{array} { l l } - 7 & 4 \end{array} \right]$

C) $[ - 86 ]$

D) $\left[ \begin{array} { l l l } - 12 & 4 \end{array} \right]$

Question

Perform the indicated matrix operations.
-Let $A = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 A + 4 B$.

A) $\left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$

B) $\left[ \begin{array} { l l } - 7 & 4 \end{array} \right]$

C) $[ - 86 ]$

D) $\left[ \begin{array} { l l l } - 12 & 4 \end{array} \right]$

Quizplus · Accepted Answer

The Answer of Perform the indicated matrix operations.
-Let $A = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$ and $B = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 A + 4 B$.

A) $\left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$

B) $\left[ \begin{array} { l l } - 7 & 4 \end{array} \right]$

C) $[ - 86 ]$

D) $\left[ \begin{array} { l l l } - 12 & 4 \end{array} \right]$

Perform the Indicated Matrix Operations A=[−42]A = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]A=[−4​2​]

Perform the Indicated Matrix Operations $A = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$