After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? Check all that apply.
A. -X^2 + 4x + 7 = 2x^2 - 9
B. -3x^2 +9x + 3x^2 = 14 + x - 1
C. 5x + 4 = 3x^2 - 2
D. x^2 + y^2 + x =0

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp