document.write( "Question 143978: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new collision detector warns the driver that there is a tain 50 meters from the car and heading toward the same crossing. How far is the tain from the crossing?\r
\n" ); document.write( "\n" ); document.write( "This problem is in a chapter that includes factoring equations and the Pythagorean theorem. Thanks for any help you can give me! \n" ); document.write( "

Algebra.Com's Answer #104785 by vleith(2983) $\"\"$ $\"About$

You can put this solution on YOUR website!
40m\r
\n" ); document.write( "\n" ); document.write( " $\"c%5E2+=+a%5E2+%2B+b%5E2\"$
\n" ); document.write( " $\"50%5E2+=+30%5E2+%2B+b%5E2\"$
\n" ); document.write( " $\"1600+=+b%5E2\"$
\n" ); document.write( " $\"b=40\"$ \r
\n" ); document.write( "\n" ); document.write( "This is a variant of the 3-4-5 triangle. You'll see lots of those \n" ); document.write( "

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