8=12.5t-4.9t^2

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Solution for 8=12.5t-4.9t^2 equation: 



8=12.5t-4.9t^2

We move all terms to the left:

8-(12.5t-4.9t^2)=0

We get rid of parentheses

4.9t^2-12.5t+8=0

a = 4.9; b = -12.5; c = +8;
Δ = b2-4ac
Δ = -12.52-4·4.9·8
Δ = -0.55000000000001
Delta is less than zero, so there is no solution for the equation

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