A plane is descending at an angle of 2° from the horizontal. The plane's current altitude is 7.9 km. See the figure below. (The figure is not drawn to scale.) Find the plane's new altitude, h, after 0.25 hours if it travels at a constant speed of 400 km/hr along the direction of its flight. Carry your intermediate computations to at least four decimal places, and round your answer to the nearest tenth of a kilometer. 7.9 km h= kilometers 2° X S -Plane after 0.25 hours Ih km Ground
A plane is descending at an angle of 2° from the horizontal. The plane's current altitude is 7.9 km. See the figure below. (The figure is not drawn to scale.) Find the plane's new altitude, h, after 0.25 hours if it travels at a constant speed of 400 km/hr along the direction of its flight. Carry your intermediate computations to at least four decimal places, and round your answer to the nearest tenth of a kilometer. 7.9 km h= kilometers 2° X S -Plane after 0.25 hours Ih km Ground
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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Question
Transcribed Image Text:O TRIGONOMETRIC FUNCTIONS
Using trigonometric functions and the formula d = rt in a real-...
A plane is descending at an angle of 2° from the horizontal. The plane's current altitude is 7.9 km. See the figure below. (The figure is not drawn to scale.) Find
the plane's new altitude, h, after 0.25 hours if it travels at a constant speed of 400 km/hr along the direction of its flight. Carry your intermediate computations
to at least four decimal places, and round your answer to the nearest tenth of a kilometer.
7.9 km
h = kilometers
Explanation
Say
2°
Check
X
S
Plane after 0.25 hours
I
I h km
1
Ground
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Transcribed Image Text:Using trigonometry to find a length in a word problem with two...
A lighthouse sits at the edge of a cliff, as shown. A ship at sea level is 550 meters from the base of the cliff. The angle of elevation from sea level to the base of
the lighthouse is 62.3°. The angle of elevation from sea level to the top of the lighthouse is 65.1°. Find the height of the lighthouse from the top of the cliff.
Do not round any intermediate computations. Round your answer to the nearest tenth.
Note that the figure below is not drawn to scale.
करी
65.1°
62.3°
550 meters
Explanation
Check
meters
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