Answer:
n * 7
7n
Step-by-step explanation:
both are multiplying 7 and the number n
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:
5v^2x + 4
Step-by-step explanation:
I'm not sure but i hope this help's