Decide whether the relation is a function.{(2, -9), (2, -2), (4, -4), (9, -4), (12, 1)}
A. Not a function
B. Function
Answer: A
Mathematics
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Calculate the circulation of the field F around the closed curve C.F = (-x - y)i + (x + y)j , curve C is the counterclockwise path around the circle with radius 8 centered at 
A. 256? B. 128(1 + ?) C. 128? D. 128(1 + ?) + 256
Mathematics
Write in if-then form.I will go to class only if you go.
A. If I don't go to class, you don't go to class. B. If I go to class, then you go to class. C. If you go to class, then I'll go to class. D. If I go to class, then you don't go to class.
Mathematics
Find the logarithm using the change-of-base formula.log? 200
A. 0.2161 B. 1.1447 C. 4.6284 D. 5.2983
Mathematics
Find the slope of the line.Through (5, 3) and (9, -5)
A. - 
B. - 2
C. 7
D. 
Mathematics