Answer
$40$ feet
Work Step by Step
Start with the formula: $h=4+60t-16t^{2}$.
Plug in $3$ for $t$: $h=4+60(3)-16(3)^{2}$.
Simplify for answer: $h=4+180-16(9)=184-144=40$.
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.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set - Page 17: 20
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