Question

2.
Determine whether the matrices are inverses.

Answer 1

Yes these are....

Note: all you have to do for these problems is to multiply the two matrices, and see if the answer is 1,0

0,1

you can multiply them by hand or use an online tool...

see the image supplied... it is a free site, and even shows the steps

Explanation:

-5 1 0.5 -0.5

-7 1 3.5 -2.5

1 0

0 1