When the ball hit the ground, the height of the ball will be zero. So using the value of h(x) as zero in the given equation, we can find the time in which the ball will hit the ground.
0 = -(x-2)^2 + 16
(x-2)^2 = 16
x-2 = 16
x-2 = 4
x = 6
This means the ball will hit the ground 6 seconds after Amir threw it.
Pretend to (or actually) cut out the given image, stick a pin in point P so it cannot move, and rotate the cutout up and to the left around point P about 1/8 of the way around the circle. The result of doing that is the picture you're looking for.
Yes the correct answer would be D because you can tell by $9.50 being the total
Okay, so since you haven't given the choices yet, I will try to answer to the best of my abilities. Because your profile says you're still in elementary school, I know there shouldn't be any variables.
The answer you are looking for is 48 divided by four, or 48/4. I don't have the divided by sign on this computer, so that's all I can do to help.