Algebra and Trigonometry 10th Edition

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

Chapter 5 - 5.4 - Exponential and Logarithmic Equations - 5.4 Exercises - Page 396: 67

Answer

$y=3-\ln x$ (Green) By observation of the graph: Solution: $x\approx20.000$. It is just a visual approximation. Algebraically: $x=20.086$
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Work Step by Step

$3-\ln x=0$ $3=\ln x$ $e^3=e^{\ln x}$ $x=e^3=20.086$
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