Simplify
Mathematics
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Set up an integral for the length of the curve.x = sin 7y, - ? ? y ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If n(B) = 36, n(A ? B) = 7, and n(A ? B) = 63, find n(A).
A. 27 B. 32 C. 36 D. 34
Mathematics
Find the limit using the properties of limits.
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A) 49 B) 14 C) 7 D) Does not exist
Mathematics
A traffic light follows the pattern green, yellow, red for 65, 10, and 30 seconds, respectively. What is the probability that a driver approaching this light will find it green or yellow? Round your answer to 2 decimal places.
A) 0.38 B) 0.03 C) 0.90 D) 0.06 E) 0.71
Mathematics