Write the expression as a constant, a single trigonometric function, or a power of a trigonometric function.
A. sin ?
B. cos3?
C. sec2?
D. tan2?
Answer: A
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Answer the question(s) based on the following situation: Over the last 80 years records have been kept of the annual rainfall in the Tasmanian desert. The distribution of annual rainfall is approximately normal and has no outliers. The minimum of 2.5 inches of rain occurred in 1959; the maximum of 9.7 inches of rain occurred in 1938.What is the approximate average annual rainfall over the last 80 years?
A. 4.3 inches B. 5.2 inches C. 3.2 inches D. 6.1 inches E. none of these
Solve the problem.Find the scale factor of the size transformation shown below.
A. 
B. 
C. 
D. 
Express the product as a sum or difference.cos 
cos 
A. 
(cos 6x - sin 5x)
B. 
(cos 5x + cos 6x)
C. 
(cos 12x - sin10x)
D. 
cos2 11x
Select the formula that best models the data in the table. 
A. y = 3x B. y = x3 C. y = 2x + 3 D. y = x2