Solve the problem.If n(A) = 31, n(B) = 50, and n(A ? B) = 10, find n(A ? B).
A. 91
B. 61
C. 71
D. 81
Answer: C
Mathematics
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Let U = {all soda pops}, A = {all diet soda pops}, B = {all cola soda pops}, 
and 
Describe the set in words.(A ? B) ? C'
A. All diet and all cola soda pops not in cans B. All non-diet, non-cola soda pops not in cans C. All diet cola soda pops not in cans D. All cola soda pops not in cans
Mathematics
Find y '.y = 
A. 2x + 
B. 2x + 
C. 2x + 
D. 2x - 
Mathematics
Find the indicated term of the arithmetic sequence.-16, -22 , -28, -34, . . . ; a20
A. 130 B. -136 C. 136 D. -130
Mathematics
Find the measure of the complement of the angle.30
°
A. 59
°
B. 149
°
C. 60°
D. 90°
Mathematics