Saturday

August 30, 2014

August 30, 2014

Posted by **Anonymous** on Wednesday, March 28, 2012 at 12:02pm.

cowboy hats = -0.4x^2 + 20x + 10

Please help me work through this.

- Algebra -
**Steve**, Wednesday, March 28, 2012 at 5:04pmassuming x is the number of days,

h(x) is the number of hats sold on day x,

h=0 means no hats sold that day, because all were sold, so that is the last day.

h(x) = 0 when x = [-20 +/- sqrt(400+16)]/-.8

x = 50.5

so, some time during the 51st day sales went to zero.

**Related Questions**

math - A magician has 3 more red hats than black hats and 4 fewer purple hats ...

Math - A gift store stocks baseball hats in red or green colors. Of the 35 hats ...

algebra - the student store sells schools supplies,hats,and t-shirts with NAMS ...

Math - Coach Coleman is ordering hats for this year's teams. There are 6 teams. ...

math 6 - Jillianknits hats for her family and friends. In the first week, she ...

business law - You make an online purchase of a hooded sweatshirt with the logo ...

Algebra I - The cost of 4 scarves and 6 hats is $52. The cost of two hats is $1 ...

English - What is the complete subject in the following sentence? The ...

Algebra II - A cowboy is practicing his lassoing technique by lassoing the fence...

physics - While taking a rest on a tree branch, a daring cowboy sees a wild ...