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 - Mid-Chapter Quiz - Page 446: 21


$SA_{Mars}$=1.45 $\times$ $10^{8}$ square kilometers.

Work Step by Step

Use the equation from the problem and the radius: $SA_{mars}$=4$\pi$(3.4$\times$$10^{3}$$)^{2}$. $SA^{mars}$=115.26 $\times$ $10^{6}$ -distribute the power 2 to the terms inside the parentheses- $SA_{Mars}$=1.45 $\times$ $10^{8}$
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