Answer
$2.94\times10^{9}$ beats
Work Step by Step
70 beats/minute
60 minutes/hour
24 hours/day
365 days/year
80 years
$70\times60\times24\times365\times80=2943360000\approx2.94\times10^{9}$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.2 - Exponents and Scientific Notation - Exercise Set - Page 32: 146
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