A football is passed through the air until it hits the ground. The height h of the ball(in feet) at any given time t is modeled the quadratic equation h = -t + 12t + 6. What will the height of the ball be after 5 seconds in the air? O 41 feet O 52 feet 26 feet 31 feet

Find the discriminant for each quadratic equation. Use it to tell whether the equation can be solved using the​ zero-factor property, or the quadratic formula should be used instead. Then solve each equation.   ​(a​) 4x2+17x=−15 ​(b​) 2x2+15=22x

A floor is 14 feet longer than it is wide. The area of the floor is 1,395 square feet. (a) Write a quadratic equation for the area of the floor (in square feet) in terms of w, the width in feet. (b) Find the length / (in ft) and width w (in ft) of the floor. ft W = ft 28 etv Å E * F2 888 FA esc FI F3 F5 F6 F7 F8 @ #3 24 % & * 3 4 6 7 8. Q W T Y D C V N alt option command A)

Fill in the blank with the appropriate number. If the vertex of y= -x +4x -4 lies on the x-axis, then the quadratic equation -x +4x-4=0 has (1) solution(s).