Answer: pic of the question?
Step-by-step explanation:
Answer: Quora. It will help, trust me or search it up
The toy rocket hits the ground when h(t) = 0.
So, h(t) = 0 = -9t^2 + 81.
Solving the equation,
-9t^2 = -81
Dividing by -9
t^2 = 9
Taking the square root.
t = 3
The answer is 3 seconds.
-4/2 which simplifies to -2/1
The answer is A hope this helps!
