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Mathematics, 30.08.2019 00:30 oomale

The equation h(t)=−16t2+70t+40 gives the height of a toy rocket, in feet, t seconds after it is launched from a platform.
what is the height of the platform?
enter your answer in the box.
ft

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The equation h(t)=−16t2+70t+40 gives the height of a toy rocket, in feet, t seconds after it is laun...
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