Question 255024
It should be 55t - 5t^2, and it's 160 meters high, not 160 high.
-5t^2 + 55t - 160 = 0
-t^2 + 11t - 32 = 0
*[invoke solve_quadratic_equation -1,11,-32]
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It doesn't go that high.
The max height is 123.75 meters, at t = 5.5 seconds.