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Mathematics 21 Online
OpenStudy (anonymous):

I need help numer 13 , and 14 the key 13 is 1 ,but my answer not the same http://img194.imageshack.us/i/page584.jpg/ Please1 check my answer: 13) 360-90=270 Probability: 270/360 = 3/4 14) 360-180=180 180/360=1/2

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