Evaluate the integral.
A. 6i + 6j - 3k
B. 6i - 6j + 3k
C. 3i - 3j - 
k
D. 3i + 3j - 
k
Answer: D
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What was the purchasing power of $1 in 1987 in terms of 1992 dollars? If necessary, round values to the nearest cent.
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The following question refers to a country with six states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
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Find the exact value of y, or state that y is undefined.y = cos-1 0
A. ?
B. undefined
C. 0
D. 
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A. 2 mi B. 6 mi C. 0 mi D. 4 mi