Question: Starting with a 100-foot-long stone wall, a farmer would like to construct a rectangular enclosure by adding 400 feet of fencing, as shown in Fig.

Starting with a 100-foot-long stone wall, a farmer would like to construct a rectangular enclosure by adding 400 feet of fencing, as shown in Fig. 7(a). Find the values of x and w that result in the greatest possible area. 100 feet x W (a) Figure 7 Rectangular enclosures. x (b) W

100 feet x W (a) Figure 7 Rectangular enclosures. x (b) W

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