Express the sum or difference as a product of sines and/or cosines.sin (4?) - sin (2?)
A. sin (3?) cos ?
B. sin ? cos (3?)
C. 2 sin (3?) cos ?
D. 2 sin ? cos (3?)
Answer: D
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Determine whether the variation between the indicated quantities is direct or inverse.The radius of a circle and its area.
A. Direct B. Inverse
Solve the equation.3log125x = 2
A. 
B. 5
C. 25
D. 125
The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring, versus 2 man-hours to make one SST ring.How many of each type of ring should be made daily to maximize the company's profit, if the profit on a VIP ring is $40 and on an SST ring is $35?
A. 16 VIP and 8 SST B. 12 VIP and 12 SST C. 14 VIP and 10 SST D. 18 VIP and 6 SST
Solve.How many 7-card hands are possible with a 52-card deck?
A. 9.365 x 108 B. 18,009,460 C. 1.338 x 108 D. 2,908,360