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Trigonometry
Question

Because the values of circular functions repeat ev...

Because the values of circular functions repeat every \( 2 \pi \) , they are used to describe things that repeat periodically. For example, the maximum afternoon temperature in a given city might be modeled by the formula below. In the formula, t represents the maximum afternoon temperature in month \( x \) , with \( x = 0 \) representing January, \( x = 1 \) representing February, and so on. 

\( t = 15 - 10 \cos \frac { x \pi } { 6 } \) 

The maximum afternoon temperature in January is (Round to the nearest integer as needed.) 

In May, the maximum afternoon temperature is (Round to the nearest integer as needed.) 

Answer

in may =  \(20\degree \)

Solution
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