1. To determine the height of a tree, a person stands 40 feet from the tree and finds that the angle of elevation at that point is 37 degrees. Find the height of the tree, to the nearest whole number.

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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1. To determine the height of a tree, a person stands 40 feet from the tree and finds that the
angle of elevation at that point is 37 degrees. Find the height of the tree, to the nearest
whole number.
2. Give the reference angle for an angle of measure 1013°.
3. Give the reference angle for an angle of measure
2T radians.
4. Graph one period of y = -2 sin 3 (x -) + 1. Include a discussion of amplitude,
period, horizontal and vertical shifts, and midline. Give coordinates of the starting and
ending points of your graph, as well as the points 1/4, 1/2, and 3/4 of the way through the
period.
Transcribed Image Text:1. To determine the height of a tree, a person stands 40 feet from the tree and finds that the angle of elevation at that point is 37 degrees. Find the height of the tree, to the nearest whole number. 2. Give the reference angle for an angle of measure 1013°. 3. Give the reference angle for an angle of measure 2T radians. 4. Graph one period of y = -2 sin 3 (x -) + 1. Include a discussion of amplitude, period, horizontal and vertical shifts, and midline. Give coordinates of the starting and ending points of your graph, as well as the points 1/4, 1/2, and 3/4 of the way through the period.
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