AnswersMathematics IIITrigonometric Applications

Trigonometric Applications — Test Answers

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The distance, d , in inches of a weight attached to a spring from its equilibrium as a function of time, t , in seconds can be modeled by the given graph. Which equation is represented in the given graph?

A
d is equal to negative 5 cosine pi t
B
d is equal to negative 5 cosine open paren pi over 2 t close paren
C
d is equal to negative 10 cosine pi t
D
d is equal to negative 10 cosine open paren pi over 2 t close paren
23

What is the approximate length of line segment KL ? Use the law of sines to find the answer.

A
3 point 7 units
B
2 point 0 units
C
3 point 2 units
D
1 point 8 units
24

What is the measure of angle cap p to the nearest whole degree?

A
35 degrees
B
57 degrees
C
72 degrees
D
52 degrees
25

What is the area of triangle DFG ? Round to the nearest whole square unit.

A
364 square units
B
27 square units
C
38 square units
D
728 square units

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