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Mathematics, 21.07.2019 19:00 ajyoung3142005oztpya

Afarmer is planning a rectangular area for her chickens. the area of the rectangle will be 450 square feet. three sides of the rectangle will be formed by fencing, which costs $5 per foot. the fourth side of the rectangle will be formed by a portion of the barn wall, which requires no fencing. in order to minimize the cost of the fencing, how long should the fourth side be?

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