document.write( "Question 70311This question is from textbook Advanced Algebra
\n" ); document.write( ": Determine whether it is the series arithmetic or geometris and find the sum 2+ 4+ 6+ 8+...;20th term \n" ); document.write( "
Algebra.Com's Answer #50154 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Determine whether it is the series arithmetic or geometris and find the sum 2+ 4+ 6+ 8+...;20th term
\n" ); document.write( "--------------
\n" ); document.write( "It is arithmetic because there is a constant difference between successive terms.
\n" ); document.write( "---------
\n" ); document.write( "the constant difference is d=2.
\n" ); document.write( "-----
\n" ); document.write( "The 20th term = 1st term + 19*d
\n" ); document.write( "20th = 2 + 19(2)
\n" ); document.write( "=40
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );