Mathematics, 05.11.2020 14:00, bilel2121

HELP A lake has a rectangular area roped off where people can swim under a lifeguard's supervision. The swimming section has an area of x^2+3x-40 square feet, with the long side parallel to the lake shore.

1.What are possible dimensions of the roped-off area? Use factoring.
2.How much rope is needed for the three sides that are not along the beach? EXPLAIN
3.The rope used to mark the swimming area is 238 ft long. What is x when the total length of rope is 238 ft? EXPLAIN

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HELP A lake has a rectangular area roped off where people can swim under a lifeguard's supervision....