document.write( "Question 424117: A 40-foot-long escalator rises from the first floor to the second floor. The escalator makes a 30 degree angle with the horizontal. How high above the first floor is the second floor? \n" ); document.write( "
Algebra.Com's Answer #295751 by Gersid(33)\"\" \"About 
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You can use the Sine function to solve this problem:
\n" ); document.write( "\"Sin%2830%29+=+h%2F40\" h = the height of the second floor above the first. Solve for h:
\n" ); document.write( "\"h+=+40%2ASin%2830%29\"
\n" ); document.write( "\"h+=+20\"
\n" ); document.write( "The second floor is 20 feet above the first floor.
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