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The campus of a college has plans to construct a rectangular parking lot on land bordered on one side by a highway. There are
The campus of a college has plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 680 ft of fencing available to fence the other three sides. Let x represent the length of each of the two parallel sides of fencing. (a) Express the length of the remaining side to be fenced in terms of x. (b) What are the restrictions on x? (c) Determine a function A that represents the area of the parking lot in terms of x. (d) Determine the values of x that will give an area between 20,000 and 40,000 ft2. (e) What dimensions will give a maximum area, and what will this area be? (c) The area of the parking lot in terms of x is A(x) = x(680-2x) (Type an expression using x as the variable.) (d) For what values of x is the area between 20,000 and 40,000? OA. for x between 32.52 ft and 75.66 ft or 259.34 ft and 307.48 ft OB. for x between 32.52 ft and 80.66 ft or 259.34 ft and 307.48 ft C. for x between 32.52 ft and 75.66 ft or 264.34 ft and 307.48 ft D. for x between 32.52 ft and 80.66 ft or 264.34 ft and 307.48 ft (e) The area is maximum when the width is feet and the length is (Type whole numbers.) feet.
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