Meme2002
Meme2002
05-02-2015
Mathematics
Answered
Need help on question 12&13
Answer :
konrad509
konrad509
05-02-2015
12.
[tex]\alpha=\dfrac{360}{n}\\ 18=\dfrac{360}{n}\\ n=20[/tex]
13.
[tex]\dfrac{4}{10}=0.4\\\\ 1-0.1-0.4=\boxed{0.5}[/tex]
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