#### Answer

$r = 0$

#### Work Step by Step

So first, let's subtract $49$ from both sides
$r^2 = 0$
The number $0$ is $0$ multiplied by itself.
If you square root both sides, you get
$r = 0$

Chegg costs money, GradeSaver solutions are free!

Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

$r = 0$

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.