Purchase Solution


Not what you're looking for?

Ask Custom Question

A Farmer wants to construct a fence. The area that he is going to enclose is rectangular, but one of the sides is a river (assumed to be straight). If he has 120 m of fence, what is the maximum surface that he can enclose?

Purchase this Solution

Solution Summary

This shows how to maximize area given a perimeter.

Solution Preview

The rectangle is characterized by two numbers a and b (the lengths of the distinct sides). Suppose that the side by the river is of length a, hence the amount of fence that the farmer needs is:

a + b + b = 120 m.

The area enclosed by the rectangle is ...

Purchase this Solution

Free BrainMass Quizzes
Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Probability Quiz

Some questions on probability

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.