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)![]() ![]() ![]() You can put this solution on YOUR website! 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. \n" ); document.write( " |