The function f is one-to-one. Find its inverse.f(x) = 7x2 - 7, x ? 0
A. f-1(x) = 
B. f-1(x) = - 
C. f-1(x) = 
D. f-1(x) = 
Answer: C
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Solve the problem.At noon, ship A was 14 nautical miles due north of ship B. Ship A was sailing south at 14 knots (nautical miles per hour; a nautical mile is 2000 yards) and continued to do so all day. Ship B was sailing east at 
and continued to do so all day. The visibility was 5 nautical miles. Did the ships ever sight each other?
A. Yes. They were within 4 nautical miles of each other. B. No. The closest they ever got to each other was 7.3 nautical miles. C. Yes. They were within 3 nautical miles of each other. D. No. The closest they ever got to each other was 6.3 nautical miles.
Find the area of the shaded region.
A. 5 B. 10 C. 7.5 D. 12.5
Use the two steps for solving a linear programming problem to 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 $30 and on an SST ring is $60?
A. 12 VIP and 12 SST B. 8 VIP and 16 SST C. 16 VIP and 8 SST D. 0 VIP and 24 SST
Find the exact value of the expression.cos(-1770°)
A. - 
B. - 
C. 
D. 