Answer:
see below
Step-by-step explanation:
h=−4.9t^2 +39.2t
When will if fall back to the ground
When will h=0
0 =−4.9t^2 +39.2t
Factor out a -t
0 = -t (4.9t -39.2)
Using the zero product property
-t =0 4.9t - 39.2 =0
t =0 4.9t = 39.2
t =39.2 /4.9
t =8
It will reach the ground again at 8 seconds
The maximum height is halfway between the zeros
(0+8)/2 = 4
It will reach the max height at 4 seconds, substituting this in to find the max height
h=−4.9 (4)^2 +39.2(4)
h = 78.4 meters
This will only be applicable between t=0 and t=8 seconds
0≤t≤8 seconds
84/7=12 9/3=3 hope this helped
You can use this method: part = percent •whole.
Your percent is .30 and your part is 9.
9=.3x
You now divide 9 by .3 which is 30. His total time is 30 minutes. Now you need to subtract how many minutes be played already from his total play time. 30 - 9 would be 21. He has 21 more minutes to play.
Integer,Irrational is the answer
Answer:
with what?
Step-by-step explanation:
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