document.write( "Question 281253: a)if (9,b,15) is a Pythagorean tripe, then b=?
\n" ); document.write( "b)the principal square root of 625 equals _______
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Algebra.Com's Answer #204293 by vleith(2983) $\"\"$ $\"About$

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$\"a%5E2+%2B+b%5E2+=+c%5E2\"$
\n" ); document.write( " $\"9%5E2+%2B+b%5E2+=+15%5E2\"$
\n" ); document.write( " $\"81+%2B+b%5E2+=+225\"$
\n" ); document.write( " $\"b%5E2+=+144\"$
\n" ); document.write( " $\"b=12\"$
\n" ); document.write( "9,12,15 is in the ration 3,4,5 whicah are always right triangles\r
\n" ); document.write( "\n" ); document.write( " $\"sqrt%28625%29+=+25+or+-25\"$
\n" ); document.write( "principle sqrt = 25 (the positive one)
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