Answer
20
Work Step by Step
We are given the following equation:
$$ h=48t-16t^2$$
Thus, plugging in $\frac{1}{2}$ for $t$, we find:
$$ h=48\left(\frac{1}{2}\right)-16\left(\frac{1}{2}\right)^2 \\ h=24-4 \\ h=20$$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 5 - Polynomials and Factoring - 5.8 Solving Applications - 5.8 Exercise Set - Page 362: 43
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