78=29t-4.9t2

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Solution for 78=29t-4.9t2 equation: 



78=29t-4.9t^2

We move all terms to the left:

78-(29t-4.9t^2)=0

We get rid of parentheses

4.9t^2-29t+78=0

a = 4.9; b = -29; c = +78;
Δ = b2-4ac
Δ = -292-4·4.9·78
Δ = -687.8
Delta is less than zero, so there is no solution for the equation

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