document.write( "Question 213500: Im really bad at math. HELP Find a5 and An for each geometric sequence. a2=-4,r=3 \n" ); document.write( "
Algebra.Com's Answer #161376 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! the r is the RATIO of the geometric sequence\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "r = 3 means that each term is 3 times the previous term\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a2 = -4; so a3 = -12, a4 = -36, and a5 = -108\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the general term (An) is the first term, multiplied by the ratio raised to the n-1 power\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "An = a1 * r^(n-1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in this case ___ An = (-4/3) * 3^(n-1) \n" ); document.write( " |