Mathematics, 16.04.2020 20:14 Geo777

Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water), x seconds after Alain threw it, is modeled by: h(x)=−5x^2+10x+15 How many seconds after being thrown will the stone hit the water?

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Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water)...