If a golf ball is hit with an upward velocity of 96 feet per second, its height h in feet above the ground can be modeled by h(t) = - 16t2 + 96t, where t is in seconds.
(a) Use factoring to determine when the golf ball strikes the ground.
The ball strikes the ground after
seconds.

Step-by-step explanation:

-16t² + 96t = 0

divide by -16

t² - 6t = 0

t(t - 6) = 0

so either

t = 0 (the ball gets wh*acked)

or

t - 6 = 0

t = 6 s  when the ball hits assumed level ground again.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6