Answer
$$4.73\times 10^{6}$$
Work Step by Step
By adding the exponents and multiplying the like terms, we have
$$(39.4\times 10^{6})(120\times 10^{-3})=4730\times 10^{3}=4.73\times 10^{6}$$
which is in the engineering notation.
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 2 - Review - Page 133: 48
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