Answer
$3\sqrt{5}$
Work Step by Step
Use the quotient rule for radicals: $\dfrac{\sqrt{a}}{\sqrt{b}}=\sqrt{\dfrac{a}{b}}$
$=\sqrt{\dfrac{90}{2}}
\\=\sqrt{45}
\\=\sqrt{9(5)}
\\=3\sqrt5$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.4 The Irrational Numbers - Exercise Set 5.4 - Page 296: 35
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