document.write( "Question 201898: Please Help:
\n" ); document.write( "Find the sum of the first five terms of the geometric sequence.\r
\n" ); document.write( "\n" ); document.write( "a = 1, r = 2
\n" ); document.write( " A) 31/5
\n" ); document.write( " B) 91/3
\n" ); document.write( " C) 31
\n" ); document.write( " D) 91/15
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Algebra.Com's Answer #152151 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
The formula for the sum of the first \"n\" terms of any geometric sequence is \"S=%28a%28r%5En-1%29%29%2F%28r-1%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"S=%28a%28r%5En-1%29%29%2F%28r-1%29\" Start with the given formula\r
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\n" ); document.write( "\n" ); document.write( "\"S=%281%282%5E5-1%29%29%2F%282-1%29\" Plug in \"a=1\", \"r=2\", and \"n=5\"\r
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\n" ); document.write( "\n" ); document.write( "\"S=%281%2832-1%29%29%2F%282-1%29\" Raise 2 to the 5th power to get 32\r
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\n" ); document.write( "\n" ); document.write( "\"S=%281%2831%29%29%2F%281%29\" Subtract\r
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\n" ); document.write( "\n" ); document.write( "\"S=%2831%29%2F%281%29\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"S=31\" Divide\r
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\n" ); document.write( "\n" ); document.write( "So the sum of the first five terms is 31 which means that the answer is C)
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