Respuesta :

wegnerkolmp2741o

Answer:

4

-12

8

Step-by-step explanation:

1                -1

-3    - 3*      3     =

2                -2    

multiplication by a scalar just multiplies each item in the matrix

1                -3

-3    -         9     =

2                -6


1  --3  

-3-9        =

2--6                


1+3

-3-9

2+6



4

-12

8

kathleen74

Answer:

Choice B.

Step-by-step explanation:

The first step is to apply the scalar -3 to Matrix B. This gives you[tex]\left[\begin{array}{ccc}3\\-9\\6\end{array}\right][/tex]

Next, do A + B. This gives you [tex]\left[\begin{array}{ccc}4\\-12\\8\end{array}\right][/tex]

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