21. Fencing a Field Consider the following problem: A farmer has 2400 ft of fencing and wants to fence off a rectangular field that borders a straight river. He does not need a fence along the river (see the figure). What are the dimensions of the field of largest area that he can fence? Experiment with the problem by drawing several diagrams illustrating the situation. Calculate the area of each configuration, and use your results to estimate the dimensions of the largest possible field. Find a function that models the area of the field in terms of one of its sides. (b)
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Step 1: Write the equation for the perimeter of the rectangular field: The perimeter (P) is given by \(2X + Y = 2400\), where X is the length and Y is the width of the rectangle. Show more…
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A farmer has 2400 ft of fencing and wants to fence off a rectangular field that borders a straight river. He does not need a fence along the river (see the figure). What are the dimensions of the field of largest area that he can fence? (a) Experiment with the problem by drawing several diagrams illustrating the situation. Calculate the area of each configuration, and use your results to estimate the dimensions of the largest possible field. (Enter your answers as a comma-separated list.) Find a function that models the area of the field in terms of one of its sides. A(x) (c) Use your model to solve the problem, and compare with your answer to Part (a). Maximum area occurs at the following values: smaller dimension, larger dimension.
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A farmer has 2400 ft of fencing and wants to fence off a rectangular field that borders a straight river. He does not need a fence along the river (see the figure). What are the dimensions of the field of largest area that he can fence? (a) Experiment with the problem by drawing several diagrams illustrating the situation. Calculate the area of each configuration, and use your results to estimate the dimensions of the largest possible field. (Enter your answers as a comma-separated list.) (b) Find a function that models the area of the field in terms of one of its sides. A(x) = (c) Use your model to solve the problem, and compare with your answer to part (a). Maximum area occurs at the following values. smaller dimension ft larger dimension ft
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Fencing a Horse Corral Carol has 2400 $\mathrm{ft}$ of fencing to fence in a rectangular horse corral. (a) Find a function that models the area of the corral in terms of the width $x$ of the corral. (b) Find the dimensions of the rectangle that maximize the area of the corral.
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