document.write( "Question 877871: I went cross-country skiing in a straight line 3 miles from my home, then made a 90 degree right turn and skied for another 4 miles. If I wanted to ski straight home from here, how far would I have to go? \n" ); document.write( "
Algebra.Com's Answer #529575 by jim_thompson5910(35256)\"\" \"About 
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Draw out the picture and you'll find out that you're drawing a right triangle with legs 3 & 4. The hypotenuse is unknown (call it x for now).\r
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\n" ); document.write( "\n" ); document.write( "Use the pythagorean theorem to solve for x\r
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\n" ); document.write( "\n" ); document.write( "\"a%5E2+%2B+b%5E2+=+c%5E2\"
\n" ); document.write( "\"3%5E2+%2B+4%5E2+=+x%5E2\"
\n" ); document.write( "\"9+%2B+16+=+x%5E2\"
\n" ); document.write( "\"25+=+x%5E2\"
\n" ); document.write( "\"x%5E2+=+25\"
\n" ); document.write( "\"x+=+sqrt%2825%29\" Note \"x+%3E=+0\"
\n" ); document.write( "\"x+=+5\"\r
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\n" ); document.write( "\n" ); document.write( "The hypotenuse is exactly 5 miles long. So if you took the shortest route, then you would go 5 miles (instead of 3+4 = 7 miles)
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