Answer
$56$ million hours
Work Step by Step
The start of the year 2012 is $t=7$ years after the start of 2005.
$V(7)=73,584(7^{3})+709,560(7^{2})-525,600(7)+76,212$
$=56,404,764$
Rounded to the nearest million:
$56$ million hours
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 13 - Section 13.1 - The Indefinite Integral - Exercises - Page 959: 52b
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