Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A - B) = n(B - A)
A. True
B. False
Answer: B
Mathematics
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Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = 4x2 + 9y2; R = {(x, y): 0 ? x ? 1, 0 ? y ? 1}
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A baker can decorate the day's cookie supply four times as fast as his new assistant. If they decorate all the cookies working together in 16 minutes, how long would it take for each of them to decorate the cookies working individually?
A. baker: 80 minutes
assistant: 320 minutes
B. baker: 80 minutes
assistant: 20 minutes
C. baker: 5
minutes
assistant: 21 minutes
D. baker: 20 minutes
assistant: 80 minutes
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Express as a sum of logarithms.log8 0.13y
A. log 8 +log 0.13
B. log8 0.13 + log8 y
C. log8 
D. log 0.13 + log y
Mathematics