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At Christie Lake, a lifeguard has used 620 m of rope to outline a safe (rectangular) swimming area. The rope will only be used for

At Christie Lake, a lifeguard has used 620 m of rope to outline a safe (rectangular) swimming area. The rope will only be used for three sides since the beach will be the fourth side of the swimming area

a) Determine the function for the swimming area.

b) Use graphing technology to plot the function.

c) Determine the maximum area.

d) Determine the dimensions of the swimming area for the maximum area.

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