document.write( "Question 890044: what is the sum of the arethmtic sequence below
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Algebra.Com's Answer #538652 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "First we determine how many terms, n.\r\n" );
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document.write( "where , , , \r\n" );
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document.write( "Now we use the sum formula:\r\n" );
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document.write( "Edwin

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