You are standing on a footbridge that is 12 feet above a lake. You look down and see a duck in the water. The duck is 7 feet away from the footbridge. What is the angle of evation from the duck to you? Round your answer to the nearest tenth. TEV

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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please help with both questions
ERROR ANALYSIS Describe the error using an inverse trigonometric ratio.
15
15
17
The cosine ratio should be used because it is the ratio of the length of the adjacent side
to the length of the hypotenuse.
• The sine ratio should be the length of the adjacent side to the length of the hypotenuse.
The cosine ratio should be used because it is the ratio of the length of the opposite side
to the length of the adjacent side.
• The sine ratio should be the length of the opposite side to the length of the hypotenuse.
Correct the error.
=mZT
8.
* sin
15
17
17
* cos-
15
17
Transcribed Image Text:ERROR ANALYSIS Describe the error using an inverse trigonometric ratio. 15 15 17 The cosine ratio should be used because it is the ratio of the length of the adjacent side to the length of the hypotenuse. • The sine ratio should be the length of the adjacent side to the length of the hypotenuse. The cosine ratio should be used because it is the ratio of the length of the opposite side to the length of the adjacent side. • The sine ratio should be the length of the opposite side to the length of the hypotenuse. Correct the error. =mZT 8. * sin 15 17 17 * cos- 15 17
PROBLEM SOLVING You are standing on a footbridge that is 12 feet above a lake. You look down and see a duck in the water. The duck is 7 feet away from the footbridge. What is the angle of
elevation from the duck to you? Round your answer to the nearest tenth.
The angle of elevation is about
Transcribed Image Text:PROBLEM SOLVING You are standing on a footbridge that is 12 feet above a lake. You look down and see a duck in the water. The duck is 7 feet away from the footbridge. What is the angle of elevation from the duck to you? Round your answer to the nearest tenth. The angle of elevation is about
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