Subtract.6 - 15
A. -21
B. 9
C. -9
D. 21
Answer: C
Mathematics
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Evaluate the integral.
dx
A. 8
+ 1 - 1
B. 
C. 8
+ 1
D. x
+ 1 + C
Mathematics
Solve the problem.Suppose a charitable organization decides to raise money by raffling a trip worth $500. If 3,000 tickets are sold at $1.00 each, find the expected net winnings for a person who buys 1 ticket.
A. -$0.85 B. -$0.81 C. -$1.00 D. -$0.83
Mathematics
Solve the problem.Bill can row 3 mph in still water. It takes him 3 hours 36 minutes to go 3 miles upstream and return. Find the speed of the current.
A. 2 mph B. 1.5 mph C. 3 mph D. 2.5 mph
Mathematics
Use the given triangles to evaluate the expression. Rationalize all denominators. 
cot 
A. 
B. 1
C. 
D. 
Mathematics