Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Answer: A
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Write the expression as a single radical. Then simplify your answer.
A. 
B. 
C. 
D. 
E. 
Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.(
- 6)(
- 2)
A. x
+ 
+ 12
B. x
+ 12
C. x
+ 12
D. x
- 2
- 6
+ 12
Solve the problem.A right triangle has an area of 40 square inches. The square of the hypotenuse is 164. Find the lengths of the legs of the triangle. Round your answer to the nearest inch.
A. 16 in. and 5 in. B. 8 in. and 10 in. C. 4 in. and 20 in. D. 64 in. and 100 in.
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100