Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.
2x + y + 4z = 16
5x - 2y + 2z = -1
x + 2y – 3z = -9

Which equation can be simplified to find the inverse of y = 2x2?

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition? a) 6 b) 8 c) 14 d) 20

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4