80=-16t^2+.100

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Solution for 80=-16t^2+.100 equation: 



80=-16t^2+.100

We move all terms to the left:

80-(-16t^2+.100)=0

We get rid of parentheses

16t^2-.100+80=0

We add all the numbers together, and all the variables

16t^2+79.9=0

a = 16; b = 0; c = +79.9;
Δ = b2-4ac
Δ = 02-4·16·79.9
Δ = -5113.6
Delta is less than zero, so there is no solution for the equation

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