Evaluate the cylindrical coordinate integral.
A. 2?
B. 28?
C. 14?
D. 4?
Answer: A
Mathematics
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Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. 1248 B. 1440 C. 1280 D. 1552
Mathematics
Solve the problem.Suppose a car rental company charges $118 for the first day and $68 for each additional or partial day. Let S(x) represent the cost of renting a car for x days. Find the value of S(5.5).
A. $492 B. $374 C. $458 D. $424
Mathematics
Is it more profitable to receive $20,000 now or $30,000 in 10 years? Assume that money can earn 5% interest compounded semiannually.
A. $30,00 in 10 years B. $20,000 now
Mathematics
Use an identity to write the expression as a single trigonometric function or as a single number.sin 22.5°cos 22.5°
A. 
B. 
C. 
D. 
Mathematics