Answer
$t=4.2sec$
Work Step by Step
Plug in $0$ for $h$, then plug in $288$ for $h_{0}$ (the height after zero seconds).
Subtract $288$ to the other side.
Divide by $-16$.
Square root of positive $18$.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.5 - Equations - 1.5 Exercises - Page 57: 127
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