#### Answer

a) <9,-6>
b) $\sqrt {117}$

#### Work Step by Step

explanation in file attached

Published by
Pearson

ISBN 10:
0-32187-896-5

ISBN 13:
978-0-32187-896-0

a) <9,-6>
b) $\sqrt {117}$

explanation in file attached

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.