lele123356 lele123356

31-10-2018
Mathematics

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Please help meeeee ill mark brainlest

Please help meeeee ill mark brainlest class=

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31-10-2018

[tex]A(n)=-1+(n-1)2\\\\A(30)-\text{put n =30 into the equation}\\\\A(30)=-1+(30-1)2=-1+(29)2=-1+58=57\\\\Answer:\ 57[/tex]

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