Precalculus (6th Edition) Blitzer

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: 20

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: $h=4+180-16(9)=184-144=40$.
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