Solve the Problem $\mathrm { d }$ In Kilometers That You Can See from a Height

Multiple Choice

Solve the problem.
-The maximum distance $\mathrm { d }$ in kilometers that you can see from a height $h$ in meters is given by the formula $d = 3.5 \sqrt { h }$ . How high above the ground must you be to see 40 kilometers? Round to the nearest tenth of a meter.

A) $457.1 \mathrm {~m}$
B) $130.6 \mathrm {~m}$
C) $11.4 \mathrm {~m}$
D) $22.1 \mathrm {~m}$