document.write( "Question 869435: sequence of 18, 27/2, 9, 9/2, 30th term? \n" ); document.write( "
Algebra.Com's Answer #524197 by richwmiller(17219)\"\" \"About 
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36/2,27/2, 18/2 9/2
\n" ); document.write( "18,13.5,9,4.5
\n" ); document.write( "9*4/2, 9*3/2 9*2/2,9*1/2 \r
\n" ); document.write( "\n" ); document.write( "d=-4.5
\n" ); document.write( "18,13.5,9,4.5, 0,-4.5
\n" ); document.write( "an = a + (n - 1)d
\n" ); document.write( "a2=18-4.5=27/2=13.5
\n" ); document.write( "a3=18-9=9
\n" ); document.write( "a4=18-13.5=4.5
\n" ); document.write( "a30 = 18 -4.5 (29)=18-130.5=-112.5\r
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