document.write( "Question 695686: The first term of a geometric series is -1 and the common ratio of 0.5, and the sum of 511.5? \n" ); document.write( "
Algebra.Com's Answer #428613 by Edwin McCravy(20059)\"\" \"About 
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This can have no solution because the terms will all be negative
\n" ); document.write( "and therefore cannot have a positive sum, such as 511.5.
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