Question

Select the correct answer from the drop-down menu. Fill in the missing number in the equation.

Answer 1

Answer:

8

Step-by-step explanation:

a A + b A where A is a matrix and a and b are scalars

( a+b) A

3+5 $\left[\begin{array}{cc}-1&2\\4&-5\end{array}\right]$ = 8$\left[\begin{array}{cc}-1&2\\4&-5\end{array}\right]$