Simplify.
A. x - 3
B. x + 3
C. 
D. 
Answer: C
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Solve for the angle ?, where 0 ? ? ? 2?sin2? = 
A. ? = 
, 
, 
, 
B. ? = 
, 
, 
, 
C. ? = 0, ?, 2?
D. ? = 
, 
, 
, 
Solve the problem.A high-wattage lamp on the top of a pole casts a circle of light around the pole with a radius of 
The pole's location is 
east and 
south of a round intersection. Using the road intersection as the origin, write an equation for the outer boundary of the circle of light.
A. (x - 14)2 + (y + 19)2 = 2025 B. (x + 14)2 + (y - 19)2 = 2025 C. (x - 14)2 + (y - 19)2 = 2025 D. (x - 14)2 - (y - 19)2 = 2025
Solve the problem.The function f, given in the diagram below, computes the average cost of an item during year x. Evaluate 
A. 510 B. 490 C. 570 D. 420
Graph the sinusoidal function.y = 
cos (- 
x)
A. 
B. 
C. 
D. 