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The height of a javelin in feet is modeled by h(t)=-16t^2+79t+5, where t is the time in seconds after the javelin is thrown. Determine the maximum height of the javelin. After how many seconds does the javelin reach its maximum height? How many seconds does it take for the javelin to hit the ground?
1. Determine the maximum height of the javelin.
2. After how many seconds does the javelin reach its maximum height?
3. How many seconds does it take for the javelin to hit the ground?

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rip english

im rewriting that

thats what i did and i got 79/32 or 2.46875

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