Answer:
6 sec
Step-by-step explanation:
when ball return to the ground, h is 0
0=at^2 +bt
0 = -4.9t^2+29.4t
factor: -4.9 times -6 is 29.4
0 = -4.9t(t-6)
set each equation to 0
-4.9t = 0 or t-6=0
t = 0 or t= 6
it's 6 seconds
Answer:
85
Step-by-step explanation:
it's counting by tens and the line is going in the middle of 80 and 90 so it's 85
The answer has something to do with volume.
My answer would be 14 miles. I really hope this is what you need
Answer:
[-3,9]
Step-by-step explanation:
you look at the x axis
