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.
Answer:
The answer is "Option C"
Step-by-step explanation:
The using formula
→r = rate
→ n = compounded value
In choice a:
When compounded is monthly


In choice b:
When compounded is quarterly

In choice c:
Whenn compounded is daily 

In choice d:
When compounded is semiannually

Answer:
Every Maths Que can Solve by ABi Nandan Logics
Answer: x>-1
Step-by-step explanation: I know this because I solved this equation. I know that is not a good explanation but I know it is right.