Answer:
x = 
Step-by-step explanation:
Given
=
( cross- multiply )
9x = 168 ( divide both sides by 9 )
x =
= 
Answer:
What do you mean please Explain more and i may be able to help you!
I think it is eric. Creating a table may help.
Answer:
It takes 4 seconds
Step-by-step explanation:
Need to find the Vertex of h(t)
to find maximum height.
Vertex at t = -b/(2a)
t = -(128) / (2*-16) = 4 seconds
Answer:

Step-by-step explanation:

Group,
factor out
in the first and 2 in the second group.

Factor out common term
by using distributive property.
polynomial
is not factored since it does not have any rational roots.

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