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A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0= 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft .... O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft

A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0= 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft .... O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0 = 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft O Time Remaining: 01:48:27 Next MATH 2 P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy | Permissions | Contact Us
Transcribed Image Text:A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0 = 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft O Time Remaining: 01:48:27 Next MATH 2 P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy | Permissions | Contact Us
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