SOLUTION: The distance d in miles that can be seen on the surface of the ocean is given by d=1.3√(h,) where h is the height in feet above the surface. How high (to the nearest foot) w

Algebra ->  Square-cubic-other-roots -> SOLUTION: The distance d in miles that can be seen on the surface of the ocean is given by d=1.3√(h,) where h is the height in feet above the surface. How high (to the nearest foot) w      Log On


   



Question 155883: The distance d in miles that can be seen on the surface of the ocean is given by d=1.3√(h,) where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to see a distance of 13.5 miles?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The distance d in miles that can be seen on the surface of the ocean is given by d=1.3√(h,) where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to see a distance of 13.5 miles?
:
The equation:
1.3sqrt%28h%29 = d
:
1.3sqrt%28h%29 = 13.5
:
sqrt%28h%29 = 13.5%2F1.3
:
sqrt%28h%29 = 10.3846
Square both sides
h = 107.84 ft