The formula d= square root of 3h/2 models the distance, d, in miles, that a person h feet high can see to the horizon. If the pool deck on a cruise ship is 80' above the water, how far can passengers on the pool deck see?

Question

Write the answer in simplified radical form. Then use the simplified radical form and a calculator to express the answer to the nearest tenth of a mile.
Absolutely don't know where to begin.
I thought maybe 1 and the square root of 3/2h or square root of 3.2.2.2.5 but it did not work in the calculator

Answer 1

I assume your formula is

d = √(3h/2)

If the person is 80' above the water, just plug it in:

d = √(3*80/2) = √120 = 2√30 = 10.95
So, the person on the deck can see 10.95 miles.

Answer 2

-3√x+2 = x-16

Answer 3

How do we use this formula with differing heights?

D=√3h/2