I think it would be 1,3, and 4, but I'm not sure
Answer:
Step-by-step explanation:
In order to find out how long it takes for the rocket to hit the ground, we only need set that position equation equal to 0 (that's how high something is off the ground when it is sitting ON the ground) and factor to solve for t:

Factor that however you are factoring in class to get
t = -3.1 seconds and t = 25.9 seconds.
Since time can NEVER be negative, it takes the rocket approximately 26 seconds to hit the ground.
Answer:
hope this helps
Step-by-step explanation:
a yes
b yes
c no
d yes
Since the cotangent function is defined as

we have that the cotangent equals zero at
, because we have

So, the limit simply becomes
