Solve each system of equations by using Guaşsian elimination. x + 3y + 5z = -5
2x - 2y - z = -14
X + 5y + 4z = 11

4. find the geometric mean of 4 and 12. 24 8

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half