Evaluate.i13
A. 1
B. -1
C. -i
D. i
Answer: D
Mathematics
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
(4xy2)2 =
a. 4x3y5 b. 16x3y4 c. 16x2y4 d. 4x2y4 e. 4x4y4
Mathematics
Simplify.(3x - 4y + 6) - 2(-3x + 4y - 6)
A. -9x + 12y - 18 B. 9x - 12y + 18 C. -6x + 8y - 12 D. 6x - 8y + 12
Mathematics
Solve the problem.The highway speeds of 100 cars are summarized in the frequency distribution below. Find the grouped mean rounded to the nearest tenth of a mile per hour. 
A. 60.8 mph B. 54.5 mph C. 58.1 mph D. 55.3 mph
Mathematics