Simplify the expression using the imaginary unit i.
A. -30i
B. ±30
C. i
D. 30i
Answer: D
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Graph the function to find the stated characteristic of the graph.Graph f(t) = - cos (?t + 
) + 3 in 
by 
. State the period.
A. 
B. 2
C. ?
D. 4
Solve the problem.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 and 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 $20 and on an SST ring is $50?
A. 12 VIP and 12 SST B. 0 VIP and 24 SST C. 0 VIP and 20 SST D. 4 VIP and 20 SST
Perform the indicated operation and write the answer in lowest terms.
+ 
A. 0
B. 3y
C. 
D. 
Simplify.|-8 + 2| ? 93
A. 157,464 B. 735 C. 4374 D. -4374