Concept explainers
Movie Theater Screens Suppose that a movie theater has a screen that is 28 feet tall. When you sit down, the bottom of the screen is 6 feet above your eye level. The angle formed by drawing a line from your eye to the bottom of the screen and another line from your eye to the top of the screen is called the viewing angle. In the figure, is the viewing angle. Suppose that you sit feet from the screen. The viewing angle is given by the function .
What is your viewing angle if you sit 10 feet from the screen? 15 feel? 20 feel?
If there are 5 feet between the screen and the first row of seats and there are 3 feet between each row and the row' behind it. which row results in the largest viewing angle?
Using a graphing utility, graph .
What value of results in the largest viewing angle?

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Chapter 7 Solutions
Mylab Math With Pearson Etext -- Standalone Access Card -- For Precalculus (11th Edition)
Additional Math Textbook Solutions
Thinking Mathematically (6th Edition)
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Calculus: Early Transcendentals (2nd Edition)
Elementary Statistics: Picturing the World (7th Edition)
University Calculus: Early Transcendentals (4th Edition)
A First Course in Probability (10th Edition)
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