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 - Chapter Review - Page 476: 48


5 $\times$ $10^{-5}$

Work Step by Step

You have the expression $\frac{4.5*10^3}{9*10^7}$. Evaluate the expression: $\frac{4.5*10^3}{9*10^7}$=0.5$\times$$10^{3-7}$ -subtract the exponents and divide powers with the same base- 0.5$\times$ $10^{-4}$ -it has to be a whole number so move the decimal and subtract 1 from the exponent- =5 $\times$ $10^{-5}$
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