document.write( "Question 258725: Answer the following. Please show your work.
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document.write( "1+14+27+...+183
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document.write( " Step 1: Using the formula for the sum of an arithmetic series, find the value of each of the following:
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document.write( "a[1]= a[2]= a[n]= and d=a[2]-a[1]=\r
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document.write( " Step 2: Find n, the number of terms in the arithmetic sequence. Use the formula a[n]=a[1]+(n-1)d\r
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document.write( " Step 3: Find the sum of the arithmetic sequence. \n" );
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Algebra.Com's Answer #190470 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! 1+14+27+...+183 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "So then the sum from 1 to n is \n" ); document.write( "Sum=n+Sum(1 to n)*13 \n" ); document.write( "The sum from 1 to n= \n" ); document.write( "Sum= \n" ); document.write( "Since n=15, \n" ); document.write( "Sum(1-15)= |