Evaluate.5xy for x = -3 and y = -2
A. -30
B. 0
C. 24
D. 30
Answer: D
Mathematics
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Find 
by using the Chain Rule. Express your final answer in terms of t.w = x + tan-1(xy), x = t + 2, y = 3t2
A. 
B. 1 + 
C. 1 - 
D. 1 + 
Mathematics
Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. ?
B. 1
C. 
D. No limit
Mathematics
Perform the indicated operation.6 c 6 fl oz + 2 c 5 fl oz
A. 10 c 3 fl oz B. 9 c 3 fl oz C. 8 c 3 fl oz D. 9 c 4 fl oz
Mathematics
Use absolute value to evaluate.
A. 5 B. -125 C. -5 D. not a real number
Mathematics