document.write( "Question 201610: which is the 9th term of the sequence which has a first term of 1 and has a common ratio of 1.5 \n" ); document.write( "
Algebra.Com's Answer #151832 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! Geometric sequence has form,,,,a(n) = a(1) r^(n-1) \n" ); document.write( ". \n" ); document.write( "given,,,a(1) =1,,,r=1.5 \n" ); document.write( ". \n" ); document.write( "a(n) = 1* 1.5^(n-1) \n" ); document.write( ". \n" ); document.write( "for n=9,,,,,a(9) = 1*1.5^8 = 25.629 \n" ); document.write( ". \n" ); document.write( "checking,, 1,,1.5,,2.25,,,3.375,,5.0625,,7.59375,,11.390,,17.086,,25.629,,,,,ok \n" ); document.write( " |