Answer:
t = 2secs
Step-by-step explanation:
Given the height above the surface expressed as h = -16t^2 + 64 t + 80.
The velocity of the rocket at its maximum height is zero. Hence;
v(t) = dy/dt = 0
dy/dt = -32t + 64
0 = -32t + 64
32t = 64
t = 64/32
t = 2secs
Hence the rocket will hit the lake after 2 secs
Answer:
A
Step-by-step explanation:
Both are ten numbers apart
The parabola opens up as the largest term has a positive leading co-efficent
Answer:
Step-by-step explanation:
Answer:
the answer is E
Step-by-step explanation:
hope this helps!
