A ball is thrown from an initial height of
7

feet with an initial upward velocity of
28
/
ft
s

. The ball's height
h

(in feet) after
t

seconds is given by the following.
=
h
+
7
−
28
t
16
t
2

Find all values of
t

for which the ball's height is
15

feet.

according to egenuity the answer is

step-by-step explanation:

d. 344.22

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2