Solve the system of equations by Gauss-Jordan elimination.
A. {(-2, -3, 0)}
B. {(-2, 0, -3)}
C. {(0, -3, -2)}
D. ?
Answer: D
Mathematics
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Find the standard equation of a parabola with the given focus or directrix. Assume that the vertex is at the origin.Focus (-4, 0)
A. y2 = -4x B. x2 = -16y C. y = -16x2 D. y2 = -16x
Mathematics
Find the derivative at each critical point and determine the local extreme values.y = 
A. 
B. 
C. 
D. 
Mathematics
Solve and check your solution(s).4 + 
= x
A. x = -1 B. x = 9 C. x = 2, 9 D. x = 1, 2
Mathematics
For the given functions f and g, find the requested function and state its domain.f(x) = 
; g(x) = 
Find f ? g.
A. (f ? g)(x) = 
; {x|x ? 0}
B. (f ? g)(x) = 
; {x|x ? 4, x ? 8}
C. (f ? g)(x) = 
; {x|x ? 32}
D. (f ? g)(x) = 
; {x|4 ? x ? 8}
Mathematics