document.write( "Question 1086359: what is the summation notation of 1000,100,10,1,0.1,0.01
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Algebra.Com's Answer #700529 by rothauserc(4718) $\"\"$ $\"About$

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This is a geometric progression with common ratio = 0.10 and a(1) = 1000
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\n" ); document.write( "S(n) = a(1) * (1 - r^n) / (1 - r)
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\n" ); document.write( "S(6) = 1000 * (1 - 0.10^6) / (1 - 0.10) = 1111.11
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