Tuesday

July 29, 2014

July 29, 2014

Posted by **Anonymous** on Wednesday, March 27, 2013 at 7:49pm.

P=t^2-35t+300. Determine the number units to be sold in order for P<0 (a loss is taken).

How do I solve this? Thanks for your help.

- college algebra -
**Damon**, Wednesday, March 27, 2013 at 8:05pmwell, when is t^2 -35 t + 300 = 0

plain old quadratic

t = [ 35 + / - sqrt (1225 - 1200) ]/2

= [ 35 +/- 5 ]/2

= 15 or 20

your profit is negative between 15 units and 20 units

I suspect a typo in your problem. It does not make sense to have a profit of 300 for zero units sold.

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