急~微求數學高手幫解題>"<~,感恩~ - 汽車
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By Sarah
at 2012-10-03T00:00
at 2012-10-03T00:00
Table of Contents
題目:根據一項研究,2008中型轎車的開車費用(汽車車款、汽車保養及折舊),是以每哩幾分計,如下表所示:每年的哩數(每哩的平均費用)5000(147.52)10000(71.8)15000(55.2)20000(46.9)以最小平方法得出每哩平均費用(以分計)的模型為以下(幫解一下,謝謝)C(X)=1735.2/x1.72+38.6其中X(以千計)為一年行車的哩程數
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By Donna
at 2012-10-03T12:19
at 2012-10-03T12:19
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