SOLUTION: The distance a person can see to the horizon from a point above the surface of Earth varies directly as the square root of the height. If, for the height of 500ft, the horizon is

Algebra.Com
Question 524893: The distance a person can see to the horizon from a point above the surface of Earth varies directly as the square root of the height. If, for the height of 500ft, the horizon is 19 miles away, how far is the horizon from a point that is 800 ft. high? Round answer to the nearest hundredth.
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
The distance a person can see to the horizon from a point above the surface of Earth varies directly as the square root of the height.
d = k*sqrt(h)
---
Solve for "k" using "for the height of 500ft, the horizon is 19 miles away"
19 = k*sqrt(500)
k = 19/sqrt(500) = 0.8497
---
Equation:
d = 0.0497*sqrt(h)
----
How far is the horizon from a point that is 800 ft. high? Round answer to the nearest hundredth.
d = 0.8497*sqrt(800)
d = 24 miles
================
Cheers,
Stan H.
================
-----

RELATED QUESTIONS

at sea, the distance to the horizon is directly proportional to the square root of the... (answered by lwsshak3)
Suppose the distance a person can see to the horizon is approximated by the function... (answered by ikleyn,MathLover1)
The weight of an object on or above the surface of Earth varies inversely as the square... (answered by ewatrrr)
The weight of a body w varies inversely with the square of its distance from the center... (answered by ikleyn)
2. The equation D=1.2 square root of h. gives the distance, D, in miles that a person can (answered by checkley77)
The weight of a body on or above the surface of the earth varies inversely with the... (answered by josgarithmetic)
The weight of a body on or above the surface of the earth varies inversely with the... (answered by josgarithmetic,greenestamps)
The weight of an object varies inversely as the square of the​ object's distance from... (answered by ikleyn)
The weight of an object varies inversely as the square of its distance from the center of (answered by ikleyn,Boreal)