document.write( "Question 1116967: Someone please help me with this, been at this worksheet for hours and need it done ASAP\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Identify the sequence (If it does not fit any of the 4 sequences, give reasons behind why it doesn’t work)\r
\n" ); document.write( "\n" ); document.write( "13,21,34,55,89,144 ...\r
\n" ); document.write( "\n" ); document.write( "4,-2,-8,-14 ...\r
\n" ); document.write( "\n" ); document.write( "2,10,15,22 ...\r
\n" ); document.write( "\n" ); document.write( "3,18,108,648 ...\r
\n" ); document.write( "\n" ); document.write( "169,196,225,256 ...
\n" ); document.write( "

Algebra.Com's Answer #731885 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Identify the sequence (If it does not fit any of the 4 sequences, give reasons behind why it doesn’t work)
\n" ); document.write( "You only need to check for common difference and common ratio.
\n" ); document.write( "13,21,34,55,89,144 ...
\n" ); document.write( "Common diff ? 21-13 = 8 but 34-21 = 13 so no common diff.
\n" ); document.write( "Common ratio ? 21/13 = 1.615.. and 32/21 = 1.523
\n" ); document.write( "So not arithmetic and not geometric
\n" ); document.write( "-------------------------------------------
\n" ); document.write( "So the same for the following streams of numbers.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "-------------
\n" ); document.write( "4,-2,-8,-14 ...
\n" ); document.write( "2,10,15,22 ...
\n" ); document.write( "3,18,108,648 ...
\n" ); document.write( "169,196,225,256 ...
\n" ); document.write( "
\n" );