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Mathematics, 06.05.2021 16:30 Tierriny576

Fireworks are fired from the roof of a 100-foot building and travel 84 feet per second. The equation h= - 16t^2 + 84t + 100 models the height h of the fireworks at any given time t seconds. 1. how long are the fireworks in the air?
2. how high did the fireworks get?
3. how high were the fireworks 2 seconds after they left the roof?

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