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Precalculus

Course: Precalculus > Unit 2

Lesson 8: Sinusoidal models

Interpret solutions of trigonometric equations in context

The function R, left parenthesis, t, right parenthesis models the average number of days of precipitation in Mogadicio, Somalia on the t, start superscript, start text, t, h, end text, end superscript month of the year.

R, left parenthesis, t, right parenthesis, equals, minus, 12, cosine, left parenthesis, start fraction, pi, divided by, 6, end fraction, left parenthesis, t, minus, 2, right parenthesis, right parenthesis, plus, 13, point, 2

What does the solution set for y, equals, minus, 12, cosine, left parenthesis, start fraction, pi, divided by, 6, end fraction, left parenthesis, 7, minus, 2, right parenthesis, right parenthesis, plus, 13, point, 2 represent?

(Choice A)
The month with the minimum number of days of precipitation
(Choice B)
The number of months with an average of 7 days of precipitation
(Choice C)
The set of months with an average of 7 days of precipitation
(Choice D)
The average number of days of precipitation in the 7, start superscript, start text, t, h, end text, end superscript month of the year

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Precalculus

Course: Precalculus > Unit 2

Problem