X + 2y - 3z = 11
2x + y + z = -1
x - 3y - z=-8

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Joanie watched 1 out of three of a movie in the morning