Answer
$d=144~feet$
Work Step by Step
$$t=\frac14 \sqrt d$$
Substitute $t=3$ and solve for $d$:
$$3=\frac14 \sqrt d$$
$$12=\sqrt d$$
$$12^2=d$$
$$d=144$$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 10 - Radical Functions and Equations - 10.3 - Solving Radical Equations - Exercises - Page 564: 21
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