document.write( "Question 1023563: A sequence has 12 elements. The six elements form a geometric progression and the last seven elements form an arithmetic progression. If the first element is 3 and the sixth element is -96,find the sum of the first six terms and the 10th element if the 12th element is -72. \n" ); document.write( "
Algebra.Com's Answer #639069 by ikleyn(52787)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "A sequence has 12 elements. The six elements form a geometric progression and the last seven elements form an arithmetic progression. If the first element is 3 and the sixth element is -96,find the sum of the first six terms and the 10th element if the 12th element is -72. \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The condition does not say that the FIRST six elements form a geometric progression.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The rest would be obvious.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Bad formulation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |