document.write( "Question 39193: The access ramp to an expressway is 850 feet long. The measure of the angle of elevation is 4 degrees.About how long is the expressway from the horizontal at the beginning of the ramp? \n" ); document.write( "
Algebra.Com's Answer #24630 by Nate(3500)\"\" \"About 
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Look at this as a right triangle. The hypotenuse is 850ft. The small angle at the beginning of the ramp is 4 degrees. Use the TRIG function: cosine.
\n" ); document.write( "Cos(4*) = (x/850)
\n" ); document.write( "850(Cos(4*)) = x
\n" ); document.write( "The length is about 848ft.
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