Posted by admin | Posted in Crocus Bulb | Posted on 21-01-2011
Tags: diy, english flower garden plans, flower garden, flower garden plans, flower garden plans 2, flower garden plans free, garden, gardening, home, perennial flower garden plans, plans
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Flower Garden Plans

can someone help me with this question? I think I know what to do but might be on the wrong path.?
john has 24m of fencing to make a rectangular flower garden. He plans to use his house as one side of the garden.
What dimensions will give the maximum "area"?
the area is a*b
the length is a + 2b = 24 ( since one side is the house ).
so you have to maximize the function Area(a,b) = a*b
substitute the connstraint a = 24 - 2b and you will get
Area(b) = (24-2b)*b
the function is a parabole with its max in the top, graph the function and you know the answer.
the zeros are b=0, b = 12, thus the top is on b = 6 and then a = 24-2*6 = 12
ant the area 6*12 = 72
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