document.write( "Question 1041583: Please help me solve this problem:
\n" ); document.write( "write the correct answer in the blank. Use numerals instead of words.
\n" ); document.write( "4,12,36,108,....
\n" ); document.write( "The sum of the first ___ terms in the above sequence is 4,372. \n" ); document.write( "

Algebra.Com's Answer #656593 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
The sum of a geometric series is,
\n" ); document.write( " $\"S%5Bn%5D=%28a%5B1%5D%29%28%281-r%5En%29%2F%281-r%29%29\"$
\n" ); document.write( "In this case, $\"a%5B1%5D=4\"$ and $\"r=3\"$ .
\n" ); document.write( " $\"4372=4%281-3%5En%29%2F%281-3%29\"$
\n" ); document.write( " $\"4372=-2%281-3%5En%29\"$
\n" ); document.write( " $\"1-3%5En=-2186\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-3%5En=-2187\"$
\n" ); document.write( " $\"3%5En=2187\"$
\n" ); document.write( " $\"n=log%283%2C%282187%29%29\"$
\n" ); document.write( " $\"n=log%28%282187%29%29%2Flog%28%283%29%29\"$
\n" ); document.write( " $\"n=7\"$
\n" ); document.write( " \n" ); document.write( "

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