document.write( "Question 379628: Find the 100th term : 3 , 7 , 17 , 23 , 31....\r
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document.write( "I have done problems like this before but I cannot seem to find the pattern of these numbers in order to find the 100th term..I appreciate the help. \n" );
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Algebra.Com's Answer #269562 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! Look at the first differences, \n" ); document.write( "4,10,6,8 \n" ); document.write( "Then the second differences, \n" ); document.write( "6,-4,2 \n" ); document.write( "The second difference pattern starting with 6 and stepping by alternating signs of 2. \n" ); document.write( "6,-4,2,0,-2,4,-6,8,... \n" ); document.write( "I used an EXCEL spreadsheet. \n" ); document.write( "Then working backwards, \n" ); document.write( "I got the 100th term to be 791. \n" ); document.write( " \n" ); document.write( " |