SOLUTION: I need help solving this problem. I keep getting the wrong answer. 5=.0002x^2-.316x+127.9. If you could help I would greatly appriciate it.

Question 341023: I need help solving this problem. I keep getting the wrong answer. 5=.0002x^2-.316x+127.9. If you could help I would greatly appriciate it.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
5=.0002x^2-.316x+127.9

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=0.00953599999999999 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 1034.13111231467, 545.868887685326. Here's your graph:

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Ignore the part about factoring it.

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