document.write( "Question 1099692: A rubber ball is dropped from a height of nine meters rebounds one-third of the distance of the previous falls. How far does it travel before coming to rest? \n" ); document.write( "
Algebra.Com's Answer #714139 by Edwin McCravy(20063)\"\" \"About 
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document.write( "The ball goes down and then up. So think of it an an infinite\r\n" );
document.write( "series of \"down-ups\".  The first \"down-up\" consists of the first \r\n" );
document.write( "\"down\" of 9 meters plus the following \"up\" which is one-third of \r\n" );
document.write( "9 meters or 3 meters, which is 9+3 = 12 meters for the first \"down-up\".\r\n" );
document.write( "Then each \"down-up\" after that is one-third of the previous \"down-up\".\r\n" );
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document.write( "So we use:\r\n" );
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document.write( "\"S%5Binfinity%5D\"\"%22%22=%22%22\"\"a%5B1%5D%2F%281-r%5E%22%22%29\"\r\n" );
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document.write( "Where a1 = 12 and \"r=1%2F3\"\r\n" );
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document.write( "\"S%5Binfinity%5D\"\"%22%22=%22%22\"\"12%5E%22%22%2F%281-1%2F3%29\"\r\n" );
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document.write( "\"S%5Binfinity%5D\"\"%22%22=%22%22\"\"12%2F%282%2F3%29\"\"%22%22=%22%22\"\"12%2A%283%2F2%29\"\"%22%22=%22%22\"\"18\"\r\n" );
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document.write( "The ball travels 18 meters.\r\n" );
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document.write( "Edwin
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