Answer
$103.5$ ft
Work Step by Step
Let $d$ be the distance between Danny and the balloon.
$\sin75^{\circ}=\frac{100}{d}$
$d=\frac{100}{\sin75^{\circ}}$
$d\approx103.5$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 11 - Section 11.1 - The Sine Ratio and Applications - Exercises - Page 503: 29
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