In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.

Answer 1

See:
http://www.jiskha.com/display.cgi?id=1290465794

Answer 2

a= 13 tan(3.5) h= the height of the mon.

h= 13 tan(9)-a
h=13 tan(9)-13tan(3.5)
h=1.264 feet

Answer 3

you place the coefficient of the radical in the power. Then you divide by 13 and multiply by (tan(9)xtan(3.5)). Then you put the x into the equation to find the height of the mountain