Simplify.
A. 
B. y11
C. 
D. y5
Answer: A
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A. 360°n B. 180°n C. 90° + 360°n D. 90° + 180°n
Solve the equation in the interval [0°, 360°). Give solutions to the nearest tenth, if necessary.2 cos3? = cos ?
A. {45°, 135°, 225°, 315°} B. {90°, 270°} C. {45°, 90°, 135°, 225°, 270°, 315°} D. ?
Solve the problem.The forearm length in centimeters, A, can be approximated by a linear function of the foot length in centimeters, f. Use the points (25, 24) and (33, 33) to find a linear model for the data in the table below. 
A. A = f - 1 B. A = 1.125f + 4.125 C. A = 0.889f + 1.775 D. A = 1.125f - 4.125
Find the domain and range of the inverse of the given function.f(x) = 
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