Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 1 - Section 1.3 - Exponents, Order of Operations, and Variable Expressions - Exercise Set: 20

Answer

$A=\pi(9^{2})$

Work Step by Step

If the area of a circle whose radius is 9 meters is $(9\cdot9\cdot\pi)$, we can write this area using exponential notation, noting that $9$ is multiplying itself twice. So the area can be expressed as: $A=\pi(9^{2})$
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