If $A=\begin{bmatrix}-4\9 \end{bmatrix}$ and $B=\begin{bmatrix}\frac{4}{16} \end{bmatrix}$ then 4A+1/4B=

Question

Accepted Answer

$\begin{bmatrix}-15\40 \end{bmatrix}$

Answer

$\begin{bmatrix}-17\32 \end{bmatrix}$

Answer

$\begin{bmatrix}0\10 \end{bmatrix}$

Answer

$\begin{bmatrix}-15\-40 \end{bmatrix}$