#### Answer

$AB$ is defined and it is $2\times2$.

#### Work Step by Step

We can get the $2\times2$ dimensions by looking at the number of rows that matrix $A$ has and the number of columns that matrix $B$ has.

Chegg costs money, GradeSaver solutions are free!

Published by
McDougal Littell

ISBN 10:
0618595414

ISBN 13:
978-0-61859-541-9

$AB$ is defined and it is $2\times2$.

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.