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Home > PC > Chapter 7 > Lesson 7.2.1 > Problem 7-40

7-40.

1. Write one equation with the 300 feet of fencing for all of the sides.
2. Write another equation to maximize area: A = xy
3. Solve for one of the variables in the first equation and substitute in the second equation.
4. Use your calculator to find the place where the volume is the highest.