Simplify.(9 + 13) ? (21 - 7)
A. 50
B. 36
C. 455
D. 308
Answer: D
Mathematics
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = 
between x = 2 and x = 9 using the "midpoint rule" with two rectangles of equal width.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Bob is planning to pack 6 shirts and 4 pairs of pants for a trip. In how many ways can he choose the shirts and pants if he has 9 shirts and 10 pairs of pants to choose from?
A. 17,698 B. 17,640 C. 17,400 D. 17,730
Mathematics
Solve the problem.The solution set of the inequality 
is 
. Without doing any work, give the solution to 
A. (-?, -4) ? (-3, ?) B. (-4, -3) C. [-4, -3] D. (-4, ?)
Mathematics
Evaluate the expression without using a calculator.log5125
A. 1
B. 3
C. 
D. 15
Mathematics