Answer:
I think they are Similar Triangles
Step-by-step explanation:
1.
Height h = 240 feet
We insert it into formula.

Now we solve this for t:

We have two answers as the rocket will pass this height on it's way up and down.
2.
Height h = 0 feet
We insert it into formula.

Now we solve this for t:

We do not consider solution -1 as the time can not be negative. Our solution is 5s.
3.
Height at bottom of hill h = 0 feet
We insert it into formula.
The slope is -1/2
Step by step
1) formula m=y2-y1/x2-x1
2) slope equals = -1+2/-8+6
3) 1/-2
4) answer is -1/2
Simplify the denominator so it is the same
divide the 4 by 2
4 divided by 2=2
now the denominator the same.
16 1/2
2 3/2
multiply 3x1
so far, it is 3/2
it is an improper fraction
divide.
2 divides by 3 = 0.1 i know
1/2
Hope this helped :D! can you mark me brainliest...