Answer:
3
Step-by-step explanation:
The answer id 12 meters.divide -2x^2+20x+48 by 2 to get x alone and then umbrella
You would divide 44 by 16 so the wing span is 2.75 ft.
If the ball hit the ground it means that its height is equal to 0. In order to find the time after the ball <span>will hit the ground, we need to find the solution of the equation h(x)=0 which is different to 0.
-4.9x^2+21.3x=0
x(-4.9x+21.3)=0
-4.9x+21.3=0
x=21.3/4.9 = 4.3469 seconds</span>
