Combine like terms.-11y + (-7x) + (-4x)
A. -11y - 3x
B. -11y + 3x
C. -11y - 11x
D. -22xy
Answer: C
Mathematics
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Calculate the surface area of the given surface.The parabolic cylinder with equation z = y2 and lying over the triangle in the 
with vertices 
A. 
(653/2 - 1) + 
(ln 65 - 1)
B. 
653/2
C. 
(653/2 - 1)
D. 
653/2 + 
ln 65
Mathematics
Divide.
A. 16 R 47 B. 15 C. 16 R 5 D. 15 R 49
Mathematics
Find the absolute value of the complex number.9 - 7i
A. 16
B. 
C. 4
D. 130
Mathematics
A point on the terminal side of an angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-4, -3)Find sin ?.
A. - 
B. 
C. - 
D. 
Mathematics