Simplitying
8y + - 3y=0
combin like terms : 8y + - 3y= 5y
5y = 0
solving
5y = 0
solving for variable. ' y ' .
move all terms containing y to the left , all other terms to the right
divide each side by ' 5 ' .
y = 0
simplifying
y = 0
A. Since we know that
is the altitude a football will reach t seconds after it is kicked, we are going to replace the altitude
in our equation and solve for
. If the equation has any positive real solutions, we can conclude that the given value is possible.
We know from our problem that the given value is
, so lets replace that value in our equation and solve for
:
Solving for
:
or
We can conclude that
the given value, h=16, is possible. In fact, the ball reaches that height two times: at
and
.
B. Just like before, we are going to replace the given value,
, in our equation
, and then, we are going to solve for
to check if the given value is possible. If the equation has any positive real solutions, we can conclude that the given value is possible.
Solving for
:
or
Since the equation doesn't have any real solutions, we can conclude that
the given value, h=20, is not possible.
Answer:
I think it is C
mark me as the brainliest please