Add or subtract. Simplify the answer.
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y) = x3 - 10x2y - 5xy3
A. 
= x2 - 10xy - 5y3; 
= -10x2 - 5xy2
B. 
= 3x2 - 20xy - 5y3; 
= -10x2 - 15xy2
C. 
= 3x2 + 2xy - 5y3; 
= -10x2 + 3xy2
D. 
= 3x2; 
= -10x2 - 15xy2
Mathematics
Reduce 36in^2 to ft^2
What will be an ideal response?
Mathematics
Find the zeros of f(x), given that one zero is k.f(x) = x3 + 5x2 + 25x + 125
k = -5
A. -5, 125i, 25i
B. -
, ±5i
C. -5, ±
D. -5, ±5i
Mathematics
Find the equation of the parabola determined by the given information.Focus at (10, -9), directrix y = -17
A. x = 
y2 + 20y - 108
B. x = 
y2 - 
y + 
C. y = 
x2 - 
x - 
D. y = 
x2 + 
x + 27
Mathematics