Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.4 - Rationalizing the Denominator - Exercise Set: 30

Answer

$\frac{13\sqrt{10}}{20}$

Work Step by Step

$\frac{13}{\sqrt{40}}$ Simplify by factoring out perfect squares. $\frac{13}{\sqrt{(4)(10)}}$ Simplify. $\frac{13}{2\sqrt{10}}$ Rationalize the denominator. $\frac{13}{2\sqrt{10}}\times\frac{\sqrt{10}}{\sqrt{10}}$ Use product rule for square roots. $\frac{13\sqrt{10}}{20}$
Update this answer!

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

Update this answer

After 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.