A baseball is tossed upward from the ground. The height of the ball in feet can be modeled by the function f(x) = -3x2 + 18x where x is the time in seconds after the ball is released. Approximately how long it takes the ball to hit the ground?​

what's that

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c