Rationalize the Denominator $\mathrm { d } = 1.2247 \sqrt { \mathrm { h } }$

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
-At an altitude of h feet above the surface of the earth, the approximate distance in miles that a person can see is given by $\mathrm { d } = 1.2247 \sqrt { \mathrm { h } }$ How far can a person see if if he or she is 920 feet above the earth's surface? Round
Your answer to the nearest tenth of a mile.

A) 39.5 mi
B) 38.2 mi
C) 37.1 mi
D) 42.8 mi