Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.5x + 2y + z =-112x - 3y - z=177x - y=12

A. {(1, -5, 0)}
B. {(0, -6, 1)}
C. {(-2, 0, -1)}
D. ?

Answer: D

Mathematics

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Find the indicated composite for the pair of functions.Given f(x) =   and g(x) = 9x + 2, find (g ? f)(x).

A. 9x + 16
B. x - 
C. x
D. x + 4

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Simplify the complex rational expression using Method I or Method II.

A.
B. -y
C.
D.

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Identify whether the equation, when graphed, will be a parabola, circle, ellipse, or hyperbola.y = x2 - 4

A. parabola B. circle C. ellipse D. hyperbola

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Graph the function from  and . ? y = 6cos2 0 - 3 ?

A. ?


B. ?


C. ?


D. ?


E. ?


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Mathematics