69. Viewing Angle of a Sign A 10-ft-wide highway sign is adja- cent to a roadway, as shown in the figure. As a driver approaches the sign, the viewing angle 0 changes. (a) Express viewing angle 0 as a function of the distance x between the driver and the sign. (b) The sign is legible when the viewing angle is 2° or greater. At what distance x does the sign first become legible? 10 ft

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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69. Viewing Angle of a Sign A 10-ft-wide highway sign is adja-
cent to a roadway, as shown in the figure. As a driver
approaches the sign, the viewing angle 0 changes.
(a) Express viewing angle 0 as a function of the distance x
between the driver and the sign.
(b) The sign is legible when the viewing angle is 2° or
greater. At what distance x does the sign first become
legible?
10 ft
Transcribed Image Text:69. Viewing Angle of a Sign A 10-ft-wide highway sign is adja- cent to a roadway, as shown in the figure. As a driver approaches the sign, the viewing angle 0 changes. (a) Express viewing angle 0 as a function of the distance x between the driver and the sign. (b) The sign is legible when the viewing angle is 2° or greater. At what distance x does the sign first become legible? 10 ft
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