Use ?, ?, ?, or both ? and ? to make a true statement.{x | x is a male who is registered with Selective Service} _____ {x | x is a male who is in the Army}
A. ? and ?
B. ?
C. ?
D. ?
Answer: C
Mathematics
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Simplify the following:
ÄÄÄÄÄ Ä A + B
Mathematics
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 30 hours. His apprentice takes 60 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 90 hr B. 12 hr C. 20 hr D. 8 hr
Mathematics
Find the sum.
A. - 
B. -14
C. -43
D. 6
Mathematics
Find the angle, in radians, in the figure below if S = 15 and r = 4.
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics