Answer
$4.5\times10^9$
Work Step by Step
When converting a number that is greater than one to scientific notation, the exponent is the number of places the decimal is moved to the left.
$4\underleftarrow{500000000}=4.5\times10^9$
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: 16
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