Answer
$$2.5 \times 10^{-5}$$
Work Step by Step
We have
$$
\frac{1.6 \times 10^{6}}{6.4 \times 10^{10}}=0.25 \times 10^{6-10}=2.5 \times 10^{-5}.
$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 2 - Section 2.6 - Scientific Notation - Exercises - Page 127: 62
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