Introductory Algebra for College Students (7th Edition)

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

Chapter 9 - Section 9.1 - Solving Quadratic Equations by the Square Root Property - Exercise Set: 82

Answer

5 inches

Work Step by Step

x is the length and width of the open box The volume of box is represented by the following equation: $x\times x\times3=75$ Simplify. $3x^2=75$ Divide each side by 3. $3x^2\div 3=75\div3$ Simplify. $x^2=25$ Take the square root of each side. $\sqrt{x^2}=\sqrt{25}$ Simplify. $x=5$
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