Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.-3x + 5y - 3z = 46x - 10y + 6z = -86x + 20y - 9z = -3
A. 
B. 
C. 
D. No solution
Answer: A
Mathematics
You might also like to view...
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 + 14y = 8x - 25
A. vertex: (-3, -7)
focus: (-1, -7)
directrix: x = -5
B. vertex: (-3, -7)
focus: (-5, -7)
directrix: x = -1
C. vertex: (-3, -7)
focus: (-3, -9)
directrix: y = -5
D. vertex: (-3, -7)
focus: (-3, -5)
directrix: y = -9
Mathematics
Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(5x4y7)-2
A. 25x8y14
B. 
C. 
D. 
Mathematics
Plot the number in the complex plane.-3
A. 
B. 
C. 
D. 
Mathematics
Find the center and the radius of the circle.x2 + y2 + 18x - 12y + 117 = 4
A. (-9, 6), r = 2 B. (-6, 9), r = 4 C. (9, -6), r = 4 D. (6, -9), r = 2
Mathematics