document.write( "Question 1077945: Find the constant sum for an ellipse with foci F1 (3, 0), F2 (24, 0) and the point on the ellipse (9, 8). The constant sum is: _____. Enter only a number. \n" ); document.write( "
Algebra.Com's Answer #692445 by MathLover1(20850)\"\" \"About 
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an ellipse with foci \"F%5B1%5D\" (\"3\",\"+0\"), \"F%5B2%5D\" (\"24\", \"0\") and the point on the ellipse (\"9\", \"8\")\r
\n" ); document.write( "\n" ); document.write( "One property of an ellipse is that, from any point, the sum of the \"distances\" to the two foci is \"constant\".\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28%289-3%29%5E2%2B%288-0%29%5E2%29%2Bsqrt%28%289-24%29%5E2%2B%288-0%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28%286%29%5E2%2B%288%29%5E2%29%2Bsqrt%28%28-15%29%5E2%2B%288%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%2836%2B64%29%2Bsqrt%28225%2B64%29\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28100%29%2Bsqrt%28289%29\"\r
\n" ); document.write( "\n" ); document.write( "\"10%2B17\"\r
\n" ); document.write( "\n" ); document.write( "\"27\"\r
\n" ); document.write( "\n" ); document.write( "The constant sum is: __\"27\"___. \r
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