Solve Rectangular Cattle Feeding Pen Problem - Find Domain of A(X)

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Homework Help Overview

The problem involves determining the area of a rectangular cattle feeding pen using a fixed amount of fencing, specifically 100 meters. The original poster seeks to express the area A(X) in terms of the width X and to identify the domain of this function based on physical constraints.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants inquire about the formula for the area of a rectangle and suggest that the original poster should show their work, including any drawings or labels used to represent the dimensions of the pen.

Discussion Status

The discussion is ongoing, with participants encouraging the original poster to clarify their approach and provide more information about their setup. There is an emphasis on labeling the sides of the rectangle correctly and expressing the area as a function of a single variable.

Contextual Notes

There is a mention of a pending attachment that may contain a drawing, which could provide additional context to the problem. Participants are focused on ensuring that the dimensions are correctly represented in relation to the given perimeter of 100 meters.

r-soy
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Hi all >>

How can I solve it?

A rectangular feeding pen for cattle is to be made with 100 meters of fencing .

Find :
1 - If X represents the width of the pen, express its area A(X) in terms of X
2 - What is the domain of the function A (determind by the physical restrictions ) ?
my regard
 
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You need to show us some work.

Can you show us the formula for finding the area of a rectangle?
 
Start by drawing a picture, labeling the variable(s) and showing what you have tried.
 
899.JPG


Then what I do?
 
The attachment is pending approval, so we probably won't be able to see your drawing for several hours. What are the labels you put on each side of the rectangle? Keep in mind that you have 100 m. of fencing. What is the area of your rectangle? If you have labelled the sides correctly, you should have the area as a function of just one variable.
 
http://www.up-00.com/s1files/gv733764.jpg
 
Last edited by a moderator:
Can you label the sides of the rectangle using just a single variable? You're given a value for the perimeter.
 

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