I do not know how to solve this problem.. Where do I begin.. Please help?!
Before a football game, a coin toss is used to determine which team will kick off. The height h (in feet) of a coin above the ground t seconds after being flipped up into the air is given by h= -16t^2+22t+3 . How long does a team captain have to call heads or tails if it must be done while the coin is in the air?

Question

I do not know how to solve this problem.. Where do I begin.. Please help?!
Before a football game, a coin toss is used to determine which team will kick off. The height h (in feet) of a coin above the ground t seconds after being flipped up into the air is given by h= -16t^2+22t+3 . How long does a team captain have to call heads or tails if it must be done while the coin is in the air?

anonymous · Answer

SUBSTITUTE h=0 and solve for t.

anonymous · Answer

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