Answer: there nothing there to ever tell use what or how to answer the question you just ask
Step-by-step explanation:
Answer: 
Explanation:
The area of a triangle A can be calculated as A=(height)x(base)/2
We know the height is 6x.
We know 
So the equation becomes (using |AC| as the base length):

The base is 
Step-by-step explanation:
h = -490t² + 1470t
When h = 980:
980 = -490t² + 1470t
Simplifying:
0 = -490t² + 1470t - 980
0 = t² - 3t + 2
Factoring:
0 = (t - 1) (t - 2)
t = 1, 2
There are two solutions because the rocket first reaches the height of 980 cm as it's going up at 1 second, then it reaches that height again as it's coming down at 2 seconds.