Answer:
This is incomplete. What do you need to find? There's not enough information to figure out what to do.
Step-by-step explanation:
It takes 4.3 seconds for the rocket to return to earth.
The equation is:

where -9.8m/sec² is the acceleration due to gravity, v₀ is the initial velocity, and h₀ is the initial height. We will go from the assumption that the rocket is launched from the ground, so h₀=0, and we are told that the initial velocity, v₀, is 42. This gives us:

We will use the quadratic formula to solve this. The quadratic formula is:

Plugging in our information we have:

x=0 is when the rocket is launched; x=4.3 is when the rocket lands.
Yes
Example: some multiples of 8 are 8,16,24,32,40 and these are multiples of 2
10 is a common factor of 50 30 and 100. So is 2
Answer:
The answer is
x < -1
Step-by-step explanation:
I hope it helps!