Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.3 - Modeling with Linear Equations - 1.3 Exercises - Page 99: 72

Answer

Vertical height = 40 feet

Work Step by Step

$\frac{height of building}{horizontal shadow length of building} = \frac{height of post}{horizontal shadow length of post}$ x/30 = 4/3 x = 4*(30/3) = 4*10 = 40ft
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