Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-4 Division Properties of Exponents - Practice and Problem-Solving Exercises - Page 444: 70

Answer

Answer B

Work Step by Step

We have the rectangle formula: $A=lw$ with $w=6ab$ and $A= 72a^3b^4$ Hence $ 72a^3b^4=(6ab)l$ $l=\frac{ 72a^3b^4}{6ab}$ $l=12a^2b^3$ The correct answer is B.
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