1. When h = height (ft) and t = time (sec), the quadratic equation h = 20t-5t can be used to determine the height of a football after it was kicked up into the air with a speed of 20 ft/sec.
a.
How long does it take the football to hit the ground? How can you tell?
b.
What is the highest point reached during the flight of the ball? How can you tell?
C.
When was the ball exactly 15 feet off the ground? How do you know?

Iam so stuck. what is the worked out answer for this question?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

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