document.write( "Question 181826: Which point is a focus of the graph of
\n" ); document.write( "x^2/64 + y^2/36 =1\r
\n" ); document.write( "\n" ); document.write( "A.(10,0) B.(0,-10) C.(-2sqrt7,0) D.(0,-2sqrt7) E.(0,-7sqrt2)\r
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Algebra.Com's Answer #136431 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
A is the answer
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\n" ); document.write( "\"c=sqrt%2864%2B36%29\"
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\n" ); document.write( "c=10
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\n" ); document.write( "foci is at ((0+10),0) and at ((0-10),0)
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\n" ); document.write( "so at (10,0) and (-10,0)
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