Solve x^2 - 8x - 20 = 0. x = 4, x = -5 x = -4, x = 5 x = 2, x = -10 x = -2, x = 10

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

What expression is equivalent to 42x-56y