1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. Toavoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between theramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp.a. 10.82 feetC. 0.72 feetd. 10.45 feetb. 2.90 feet2. Some mountains in the Alps are very steep and have a grade of 42.7%. To the nearest degree, what angle dothese mountains make with a horizontal line?a.23°C.47°b. 67°d. 32°3. Classify each angle in the diagram as an angle of elevation or an angle of depression.a. Angles of elevation: Z1, 23Angles of depression: 2, 24b. Angles of elevation: 2. 24C. Angles of elevation: Z1, 4Angles of depression: 2, 23d. Angles of elevation: 223n m

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1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp. a. 10.82 feet b. 2.90 feet C. 0.72 feet d. 10.45 feet

1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp. a. 10.82 feet b. 2.90 feet C. 0.72 feet d. 10.45 feet

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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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

Question

100%

1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To
avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the
ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp.
a. 10.82 feet
C. 0.72 feet
d. 10.45 feet
b. 2.90 feet
2. Some mountains in the Alps are very steep and have a grade of 42.7%. To the nearest degree, what angle do
these mountains make with a horizontal line?
a.
23°
C.
47°
b. 67°
d. 32°
3. Classify each angle in the diagram as an angle of elevation or an angle of depression.
a. Angles of elevation: Z1, 23
Angles of depression: 2, 24
b. Angles of elevation: 2. 24
C. Angles of elevation: Z1, 4
Angles of depression: 2, 23
d. Angles of elevation: 223
n m

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