Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 \mathrm {~A} + 4 \mathrm {~B}$.
A) $\left[ \begin{array} { l l } - 7 & 4 \end{array} \right]$
B) $\left[ \begin{array} { l l } - 12 & 4 \end{array} \right]$
C) $\left[ \begin{array} { l l } - 8 & 6 \end{array} \right]$
D) $\left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$

Question

Quizplus · Accepted Answer

The Answer of Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { l l } - 4 & 2 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { l l } 1 & 0 \end{array} \right]$. Find $3 \mathrm {~A} + 4 \mathrm {~B}$.
A) $\left[ \begin{array} { l l } - 7 & 4 \end{array} \right]$
B) $\left[ \begin{array} { l l } - 12 & 4 \end{array} \right]$
C) $\left[ \begin{array} { l l } - 8 & 6 \end{array} \right]$
D) $\left[ \begin{array} { l l } - 1 & 2 \end{array} \right]$

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

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