Express the number in terms of i.
A. 50i
B. -50i
C. i
D. ±50
Answer: A
Mathematics
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Integrate the function f over the given region.f(x, y) = sin 3x over the rectangle 0 ? x ? 
, 0 ? y ? ?
A. ?
B. 
C. 
D. 
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Graph the function.r(x) = x3 - 3x + 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The sum of a student's three scores is 219. If the first is 12 points more than the second, and the sum of the first two is 24 more than twice the third, what was the first score?
A. 83 points B. 53 points C. 65 points D. 71 points
Mathematics