document.write( "Question 1176215: The sum of the second and third terms of a geometric sequence is 18 . If the tenth term is 8 times the seventh term , find ;
\n" ); document.write( "a) the first term
\n" ); document.write( " b) the common ratio
\n" ); document.write( "c) the sixth term
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Algebra.Com's Answer #802594 by josgarithmetic(39617)\"\" \"About 
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a, the first term
\n" ); document.write( "ar, the second term
\n" ); document.write( "ar^2, the third term
\n" ); document.write( "and then the TENTH term is ar^9.\r
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\n" ); document.write( "\n" ); document.write( "\"system%28ar%2Bar%5E2=18%2Car%5E9=8ar%5E6%29\"\r
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\n" ); document.write( "\n" ); document.write( "Taking the second equation, \"%28ar%5E9%29%2F%288ar%5E6%29=1\"\r
\n" ); document.write( "\n" ); document.write( "\"%281%2F8%29r%5E3=1\"\r
\n" ); document.write( "\n" ); document.write( "\"r%5E3=2%5E3\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28r=2%29\"\r
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\n" ); document.write( "\n" ); document.write( "First Term:
\n" ); document.write( "\"a%2A2%2Ba%2A2%5E2=18\"
\n" ); document.write( "\"2a%2B4a=18\"
\n" ); document.write( "\"6a=18\"
\n" ); document.write( "\"highlight%28a=3%29\"
\n" ); document.write( "and maybe you can find the sixth term.\r
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