Answer
80,000
Work Step by Step
Multiply the corresponding parts together to find:
$=(4 \cdot 2) \times (10^8 \cdot 10^{-4})
\\=8 \times 10^{8+(-4)}
\\=8 \times 10^4\\=80,000$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Exercise Set 5.6 - Page 320: 82
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