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d(t) = -16t^2+40t +24 A swimmer dives f...

`d(t) = -16t^2+40t +24`
A swimmer dives from a diving board that is 24 feet above the water. The distance, in feet, that the diver travels after t seconds have elapsed is given by the function above. What is the maximum height above the water, in feet, the swimmer reaches during the dive?

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