Answer:
Step-by-step explanation:
First, make sure all the units are the same. One is given in feet and the other is given in miles.
Let's convert everything to feet.
There are 5,280 feet in one mile.
So 3,959 times 5,280 is 2,090,3520
The horizon line will form a right angle so, the 2,090,3520 and the 127,851 can be used in the Pythagorean Theorem
2,090,3520^2 + 127,851^2
436,957,148,400,000 + 16,345,878,200
Then square root that answer to get
20,903,910.98 feet
