Question

at a height of h meters you can see v kilometers to the horizon these numbers are related by the equation v= 3.5(sqr rt symbol)h. a person can see 392 km to the horizon from an airplane window. How high is the airplane?

Answer 1

\[v=3.5\sqrt{h}\]\[v=392\] so \[392=3.5\sqrt{h}\]giving us \[h=(\frac{392}{3.5})^{2}\]

Answer 2

i dont understabd?

Answer 3

is that simplified?

Answer 4

no, i assumed you had a calculator and could find what h is