Question

Help ASAP! Will award brainliest!

Answer 1

Answer:

The last (bottom) option in your list

Step-by-step explanation:

Do the product of the matrix one at a time as shown in the attached image:

Answer 2

Answer:

$A^3=\left[\begin{array}{ccc}19&27&9\\6&19&18\\18&9&19\end{array}\right]\\\\PQ-not\ possible$

Step-by-step explanation:

$A^3=A\cdot A\cdot A$

A³ - in the attachment

PQ is not possible, because

the dimensions of P are 3 × 3

the dimensions of Q are 2 × 2.

We can multiply two matrices A and B if the number of columns in A is equal to the number of rows in B.

n × m and m × k