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Grade 9·12 problems·~14 min·Common Core Math - HS Functions·group·hsf-if-b-4
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Procedures

1.

The function h(t)=5t2+20th(t) = -5t^2 + 20t models the height (in meters) of a soccer
ball at time tt seconds after it is kicked.

The ball reaches its relative maximum height at t=2t = 2 seconds.

What is the maximum height, in meters? (Enter a number.)