Mathematics
Mathematics, 27.06.2019 08:00, ashley2816

Jivesh also has a more powerful model b rocket. for this rocket, he uses the equation h=-490t^2+1260t. when is the height of the model b rocket 810 centimeters? ( it also includes number 19, but i need 20)

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Jivesh also has a more powerful model b rocket. for this rocket, he uses the equation h=-490t^2+1260...

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