Solve the problem.Six strangers arrive at a business seminar and each person shakes hands with every other person. How many handshakes are there?
A. 15
B. 18
C. 20
D. 30
Answer: A
Mathematics
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 48 at 
minimum: -48 at 
B. Maximum: none; minimum: 48 at 
C. Maximum: 48 at 
minimum: 0 at 
D. Maximum: none; minimum: 0 at 
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Find the reference angle for the given angle.- 
A. 
B. 
C. - 
D. 
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Graph the inequality.x + 3y ? 6
A. 
B. 
C. 
D. 
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Add or subtract.3i + (-7 - i)
A. 7 - 2i B. -7 + 2i C. 7 - 4i D. -7 + 4i
Mathematics