Add or subtract the following complex numbers.(6 + 5i) - (-3 + i)
A. 3 + 6i
B. 9 - 4i
C. 9 + 4i
D. -9 - 4i
Answer: C
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Find d2y/dx2 without eliminating the parameter.x = 
, y = 
; t ? -1, 0, 1
A. 
B. 
C. 
D. 
Answer the question.Tell which of the following distributions would have the most variation.
A. Scores on a test in which half the students got an A and half failed B. Scores on a test in which all students got a perfect score C. Scores on a test in which half the students got a C and half failed D. Scores on a test in which half the students got an A and half got a B
Determine whether or not the ordered pair is a solution of the linear equation.9x - 19y = 65; (3, -2)
A. Yes B. No
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x2, y = 9, x = 0
A. 
?
B. 18?
C. 
?
D. 
?