Find the center of the ellipse.9x2 + 72x + 25y2 + 200y + 319 = 0
A. (-9, -4)
B. (-4, -4)
C. (-4, -9)
D. (-4, -4)
Answer: B
Mathematics
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Solve the problem.Evaluate 
at (x, y, z) = (5, 5, 3) for the function u(p, q, r) = p2q2 - r; p = y - z, 
A. -384 B. -96 C. 320 D. -192
Mathematics
Find all the first order partial derivatives for the following function.f(x, y) = 6x - 3y2 - 9
A. 
= -6y; 
= 6
B. 
= -3; 
= -6y - 9
C. 
= 6x; 
= -6y
D. 
= 6; 
= -6y
Mathematics
Determine which quadrant (I, II, III, or IV) the point is located in.(400, -200)
A. I B. II C. III D. IV
Mathematics
Solve the linear system using an inverse matrix.
A. (6, 2) B. (2, 6) C. (-6, -2) D. (-2, -6)
Mathematics