## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Exercise Set 5.6 - Page 320: 73

#### Answer

$8.2 \times 10^{7}$

#### Work Step by Step

Move the decimal point 2 places to the left to get 8.20 or 8.2. Then, multiply $10^{2}$ (or increase the power of 10 by 2) to retain the original value. $=8.20 \times 10^{5+2} \\=8.2 \times 10^{7}$

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