Quadratics (id: a89553e8f)

本题目来源于试卷: Quadratics，类别为 IB数学

[填空题]
A farmer is going to fence two eq:td(opbwl: 5b3cxip 6v ;c 5 (gsdacb1ual adjacent parcels *bpo2wb;b i +iaz x34;i0bahhof land. These parcels share one side (which also requires fencing) as shown in theaxb0b 4*bz;h;b2iopah3+w ii following diagram. The farmer has only
80 metres of fence.


1. Write down the equation for the total length of the fence, 80 $\mathrm{m}$ , in terms of x and y . y =   
2. Write down the total area of both parcels of land in terms of x .   
3. Find the maximum area, in ${\mathrm{m}}^2$ , of one parcel of land. ≈   

参考答案:
空格1: 3/4*x-20  空格2: 40*x-3/2*x^2  空格3: 133≈ __ 


本题详细解析:

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