Posted by Ash on Sunday, September 6, 2009 at 1:10pm.
V = x(162x)(192x) = 175 ft³
Ok, thanks. Now I'm trying to multiply out and having some difficulty. I am getting 4x^370x^2+304x = 175 which I'm not sure how to work with

PRE CALCULUS  MathMate, Sunday, September 6, 2009 at 1:36pm
I agree it is a little difficult to solve unless you have learned Newton's method. If not, you can solve it by the bisection method, which is to evaluate the function using trial values of x until the function evaluates to 175.
I will give you a kickstart.
Let
f(x)= x(162x)(192x)
and knowing that the solution is around 0.68, we try
f(0.6)=0.6(162*0.6)(192*0.6)=158.064
f(0.7)=179.872
f(0.65)=169.124
So the next tries should lie between 0.65 and 0.7.
Keep on trying until you get a solution to within 1 or two decimals.

PRE CALCULUS  MathMate, Sunday, September 6, 2009 at 1:50pm
Here is a graph of the function f(x).
http://i263.photobucket.com/albums/ii157/mathmate/Ash.png
Answer This Question
Related Questions
 PreCalc  I am having a great deal of difficulty with this problem. An open box...
 math  can anyone help please, i need a simple formula for working out taxes.if ...
 Math  How do you convert fractions to a percentage? give me an example and ill ...
 Chemistry  a 175.0 ml solution is made up of 20.0g of titanium(iii) chloride ...
 Mat 116  substitution method 7x +9y= 19 x=255y ___________ 7(255y)+9=19 175...
 Math  The perimeter of a rectangular deck is 175 feet. The length of the deck, ...
 mathematics  the area of a rectangle is 175 and the length is 1 and a half ...
 math  can you please check my work. The time in minutes that it took five ...
 PLEASE HELP!!computer science  I'm trying to write a program for this piece ...
 maTHS  A shop reduces al its 30% in a closing down scale. What is the original ...
More Related Questions