Solve the problem.How many different three-digit numbers can be written using digits from the set {2, 3, 4, 5, 6} without any repeating digits?
A. 120
B. 10
C. 20
D. 60
Answer: D
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Solve the problem. Round your answer, if appropriate.After a new firm starts in business, it finds that its rate of profit (in hundreds of dollars) after t years of operation is given by 
Find the profit in year 7 of the operation.
A. $32,400 B. $40,350 C. $45,500 D. $15,900
Use reduction formulas to evaluate the integral.
A. - 
cot2 3x + 
cot 3x - x + C
B. - 
cot3 3x + 
cot 3x + C
C. - 
cot3 3x - 
cot 3x + x + C
D. - 
cot3 3x + 
cot 3x + x + C
Provide an appropriate response.An adjustable rate mortgage means:
A. payments will be larger than on a fixed rate mortgage B. the interest rate cannot change C. the interest rate is fixed for the first five years D. the interest rate can change
Solve.x2 + y2 = 65xy = 8
A. (8, 1), (2, 8), (-8, -1), (-2, -8) B. (16, 1), (1, 8), (-16, -1), (-1, -8) C. (8, 1), (1, 8), (-8, -1), (-1, -8) D. (1, 1), (1, 8), (-1, -1), (-1, -8)