A rectangular area of 3200 ft^2 is to be fenced off.two opposite sides will use fencing costing $1 per foot and the remaining sides will use fencing costing $2per foot.find the dimensions of the rectangular of least cost.
A rectangular area of 3200 ft^2 is to be fenced off.two opposite sides will use fencing costing $1 per foot and the remaining sides will use fencing costing $2per foot.find the dimensions of the rectangular of least cost.