Answer
a. 0.36
b. 40,000,000
Work Step by Step
a.
$(9 \times 10^7)(4 \times 10^{-9})$
$=(36 \times 10^{-2})$
$=0.36$
b.
$\frac{8 \times 10^4}{2 \times 10^{-3}}$
$=4\times 10^7$
$=40,000,000$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.2 - Negative Exponents and Scientific Notation - Practice - Page 351: 19
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