Answer:
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Uhhh that doesn’t seem possible but then again i forgot simple math lol
Step-by-step explanation:
s = -4.9t² + 49t
The vertex of the parabola is at t = -b/(2a).
t = -49 / (2 × -4.9)
t = 5
The rocket reaches its maximum height after 5 seconds.
X+x+20+2x=180
4x+20=180
4x=160
x=40