document.write( "Question 847579: find an equation of the ellipse having the given foci and sum of focal radii (6,0),(6,6);10 \n" ); document.write( "
Algebra.Com's Answer #510621 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "major axis: 2a = 10, a = 5
\n" ); document.write( "(6,0)and(6,6) and 6/2 = 3, foci distance from center
\n" ); document.write( " \"9+=+25+-b%5E2\" b^2 = 16
\n" ); document.write( "\"%28x-6%29%5E2%2F25%2B+%28y-3%29%5E2%2F16=+1\"
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\n" ); document.write( "\n" ); document.write( "Standard Form of an Equation of an Ellipse is \"%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+\"
\n" ); document.write( "where Pt(h,k) is the center. (a variable positioned to correspond with major axis)
\n" ); document.write( " a and b are the respective vertices distances from center
\n" ); document.write( " and ±\"sqrt%28a%5E2-b%5E2%29\"are the foci distances from center: a > b \n" ); document.write( "
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