E
Editor
Sep 18, 2022
If $A=\begin{bmatrix}-4\\9 \end{bmatrix}$ and $B=\begin{bmatrix}\frac{4}{16} \end{bmatrix}$ then 4A+1/4B=
Difficulty: Easy
A:
$\begin{bmatrix}-17\\32 \end{bmatrix}$
B:
$\begin{bmatrix}0\\10 \end{bmatrix}$
C:
$\begin{bmatrix}-15\\40 \end{bmatrix}$
D:
$\begin{bmatrix}-15\\-40 \end{bmatrix}$
ID: 63273dbaca83163ac3a11c2b