The one which has the greatest initial DOWNWARD velocity which is ball 4
Answer:
x = 8
Step-by-step explanation:
combine like terms:
18x + 36 = 180
18x = 180-36
18x = 144
x = 144/18
x = 8
if you have already covered slopes, you could also get it that way, in fact is simpler that way.
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