SOLUTION: Solve
80=-5t^2-20t+100
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Question 118355: Solve
80=-5t^2-20t+100
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
80=-5t^2-20t+100
=0 [subtract 80 from both sides]
=0 [simplify]
.
.
.
.
x=0.828
and
x=-4.828
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