现在能够整理出来的数学题目(0.1版):(有的没有编号,大部分用中文,答案只供参考)
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5 toothpick, the average measurement is 1.35 inches with a rage of o.4 inches, which is a possible group of measurement mentioned above?
D ,1.27, 1.30,1.35,1.40,1.67
E, 1.33, 1.34, 1.35, 1.36, 1.37
选D。
n=1000,(n^2-n-6)/(n^2-9)=
C. 2/3
D.3/4
E.3/2
答案:是另一个没有标明的选项 1。
positive slope,y-intercept>0,then how about x-intercept?
答案: <0.