Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 9 - Solving Quadratic Equations - 9.1 - Properties of Radicals - Exercises - Page 487: 65

Answer

$h(10)=5 \sqrt{2}$ $h(10)\approx 7.07$

Work Step by Step

The given function is $\Rightarrow h(x)=\sqrt{5x}$ Substitute $10$ for $x$. $\Rightarrow h(10)=\sqrt{5(10)}$ Simplify. $\Rightarrow h(10)=\sqrt{50}$ Factor as square term. $\Rightarrow h(10)=\sqrt{25\cdot 2}$ $\Rightarrow h(10)=\sqrt{5^2\cdot 2}$ Use product property of square roots. $\Rightarrow h(10)=\sqrt{5^2}\cdot \sqrt{2}$ Simplify. $\Rightarrow h(10)=5 \sqrt{2}$ Rounded to the nearest hundredth. $\Rightarrow h(10)\approx 7.07$
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