Indicate whether the statement is true always, sometimes, or never.The difference between two real numbers is a real number.
A. Always
B. Sometimes
C. Never
Answer: A
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Graph the function.y = 
sec 
A. 
B. 
C. 
D. 
Solve the problem.Tracy can wallpaper 5 rooms in a new house in 15 hours. Together with her trainee they can wallpaper the 5 rooms in 11 hours. How long would it take the trainee working by herself to do the job?
A. 70 hr B. 50 hr C. 15 hr D. 35 hr
Study the examples. The arrows indicate the direction that the given cube has been rotated 90°. Pick the cube illustrating the appropriate rotations.
?
Rotating a cube.
?
?
Rotation: downward, downward
?
?
A. D B. B C. C D. A
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 $40?
A. 12 VIP and 12 SST B. 8 VIP and 16 SST C. 16 VIP and 8 SST D. 0 VIP and 24 SST