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Mathematics, 28.11.2019 21:31 caseyheaton

Heee i have no idea how to do !

you are building an 8000-square-foot rectangular pen with three sides fenced along a river. the side parallel to the river faces nice homes and must be built using cedar costing $5 per foot. the other two sides can be built using chain link costing $2 per foot. what dimensions will minimize the cost of the fence?

i really need can someone show me step by step : ( !

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