Answer:
t = 15.42 s
Step-by-step explanation:
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation.

We ned to find the time when the rocket will the ground. For this, y = 0

It is a quadratic equation whose solution is given by :

Here, a = -16, b = 242 and c = 73

Neglecting negative value.
So, it will hit the ground in 15.42 s.
Incomplete question. Please share complete question
After 79 weeks the tanks will have the same amount of water.
948-7*79=395
711-4*79=395
3
the ans is 3 ---
4
cause blue is 5 times of red.