Question

question 7 points 1

find (10b) if (b = \

$$\begin{bmatrix} 20 & 5 \\\\ 40 & 6 \\end{bmatrix}$$

).

\\(\bigcirc \

$$\begin{bmatrix} 200 & 50 \\\\ 400 & 60 \\end{bmatrix}$$

\\)

\\(\bigcirc \

$$\begin{bmatrix} -200 & 50 \\\\ -400 & 60 \\end{bmatrix}$$

\\)

Explanation:

Identify the given matrix and scalar

Using the Scalar Multiplication knowledge point

$$ B =
LATEXBLOCK0
, \quad k = 10 $$

Multiply each element by the scalar

Using the Scalar Multiplication knowledge point

$$ 10B =
LATEXBLOCK1
=
LATEXBLOCK2
$$

Answer:

• **\(

$$\begin{bmatrix} 200 & 50 \\ 400 & 60 \end{bmatrix}$$

\) (Correct answer)**

• \(

$$\begin{bmatrix} -200 & 50 \\ -400 & 60 \end{bmatrix}$$

\)