Sunday

March 1, 2015

March 1, 2015

Posted by **ASHLEY** on Sunday, September 6, 2009 at 12:31pm.

- PRE-CALCULUS -
**MathMate**, Sunday, September 6, 2009 at 12:52pmLet the side of the square to be cut out be x ft.

The volume of the resulting box is then

V = x(16-2x)(19-2x) = 175 ft³

You can solve the equation by trial and error, there should be a root around x=0.68 ft.

- PRE-CALCULUS -
**Ashley**, Sunday, September 6, 2009 at 1:12pmV = x(16-2x)(19-2x) = 175 ft³

Ok, thanks. Now I'm trying to multiply out and having some difficulty. I am getting 4x^3-70x^2+304x = 175 which I'm not sure how to work with

- PRE-CALCULUS -
**MathMate**, Sunday, September 6, 2009 at 5:43pmSee response of follow-up post:

http://www.jiskha.com/display.cgi?id=1252257020

- PRE-CALCULUS -
**Anonymous**, Saturday, June 28, 2014 at 6:14am2.885

**Answer this Question**

**Related Questions**

Pre-Calc - An open box is formed by cutting squares out of a piece of cardboard ...

pre calc - An open box is formedby cutting squares out of a peice of cardboard ...

calculus - By cutting away identical squares from each corner of a rectangular ...

calculus optimization problem - by cutting away identical squares from each ...

Calculus - By cutting away identical squares from each corner of a rectangular ...

calc - by cutting away identical squares from each corner of a rectangular piece...

math - By cutting away identical squares from each corner of a rectangular ...

Pre-Calc - I am having a great deal of difficulty with this problem. An open box...

Math - The length of a piece of cardboard is two inches more than its width. an ...

math - An open-top box is to be constructed from a 6 foot by 8 foot rectangular ...