document.write( "Question 1202667: The first term of an geometric progression is 12 and the fifth term is 55. Determine the 8th term and the 11th term. \n" ); document.write( "
Algebra.Com's Answer #837650 by mananth(16946)\"\" \"About 
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The first term of an geometric progression is 12 and the fifth term is 55. Determine the 8th term and the 11th term.
\n" ); document.write( "a1 =12\r
\n" ); document.write( "\n" ); document.write( "an=ar^(n-1)\r
\n" ); document.write( "\n" ); document.write( "a5 = 12*r(^4)\r
\n" ); document.write( "\n" ); document.write( "55 =12*r^(4)\r
\n" ); document.write( "\n" ); document.write( "r^4=55/12\r
\n" ); document.write( "\n" ); document.write( "r=1.4631....\r
\n" ); document.write( "\n" ); document.write( "a=12, r = 1.4361\r
\n" ); document.write( "\n" ); document.write( "Use formula\r
\n" ); document.write( "\n" ); document.write( "a8 =12*(1.7631)^7\r
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