Solve the system of equations by Gauss-Jordan elimination.
A. {(-5, 4, -2)}
B. {(-2, 4, -5)}
C. {(-5, -2, 4)}
D. ?
Answer: B
Mathematics
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Determine the type of curve from the given information.A mirror is in the shape of a conic. If a ray of light is directed at one focus from a sufficient distance, it never reaches that focus, but is instead reflected toward the other focus. What type of curve is represented by the mirror?
A. Hyperbola B. Parabola C. Ellipse D. None of the above
Mathematics
Divide, if possible. If a quotient is undefined, state so.-36 ÷ (-9)
A. -4 B. 4 C. 5 D. -5
Mathematics
Graph the equation.(y - 1)2 = -8(x - 2)
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.-2
+ 4
= 8
A. x = -1 B. x = 2 C. x = 1 D. x = 0
Mathematics