Find all the first order partial derivatives for the following function.f(x, y, z) = z(ex)y
A. 
= zyexy; 
= zxexy; 
= exy
B. 
= zxexy; 
= zyexy; 
= exy
C. 
= zyexy; 
= zxexy; 
= zexy
D. 
= zexy; 
= zexy; 
= exy
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Find the polar coordinates of the point. Express the angle in degrees and then in radians, using the smallest possible positive angle.(-2
, -2
)
A. (2
, 135°), 
B. (2
, 225°), 
C. (4, 135°), 
D. (4, 225°), 
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Evaluate the square root and approximate to two decimal places if necessary.- 
A. 24.5 B. - 14 C. - 7 D. -24.5
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Solve the equation by completing the square.k2 - 18k + 81 = 0
A. {-9, 9}
B. {-9, 3}
C. {9, -
, 
}
D. {9}
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