document.write( "Question 1117243: Find the 50th term of the sequence: 5, -2, -9, -16\r
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Algebra.Com's Answer #732246 by ikleyn(52879)\"\" \"About 
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document.write( "Arithmetic progression with the first term  5  and the common difference  d = (-2-5) = -7.\r\n" );
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document.write( "The n-th term is  \"a%5Bn%5D\" = \"a%5B1%5D\" + d*(n-1).\r\n" );
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document.write( "In your case  \"a%5Bn%5D\" = 5 + (-7)*(n-1).       (1)\r\n" );
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document.write( "To find  \"a%5B50%5D\",  substitute  n= 50 into the formula (1) and calculate.\r\n" );
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\n" ); document.write( "For introductory lessons on arithmetic progressions see \r
\n" ); document.write( "\n" ); document.write( "    - Arithmetic progressions\r
\n" ); document.write( "\n" ); document.write( "    - The proofs of the formulas for arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Problems on arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on arithmetic progressions\r
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