True or false?When using a truth table, the statement p ? q is equivalent to ~q ? ~p.
A. True
B. False
Answer: A
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Decide whether the statement is true or false.If two angles are supplementary and one is a right angle, then the other cannot be a right angle.
A. True B. False
Calculate the flux of the field F across the closed plane curve C.F = (x + y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at (0, 0), (6, 0), (6, 10), and (0, 10)
A. 240 B. - 20 C. 420 D. 340
Solve the problem.If v = -i - j, find 
.
A. 2
B. 0
C. 
D. 1
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. 8 VIP and 16 SST B. 12 VIP and 12 SST C. 0 VIP and 24 SST D. 16 VIP and 8 SST