A and B designate finite sets. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True
B. False
Answer: B
Mathematics
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Use rational exponents to write a single radical expression.
A. 
B. 
C. 42
D. 
Mathematics
Solve the problem.If cos A = - 
and sin B = 
, with A and B in quadrant II, then find sin(A + B).
A. 
B. - 
C. 
D. - 
Mathematics
Find the number b such that the line y=b divides the region bounded by the curves and y=4 into two regions with equal area.
What will be an ideal response?
Mathematics
Perform the indicated operation. Round to the nearest hundredth, if necessary.
A. -20
B. -3.8
C. -0.38
D. - 
Mathematics