Answer:
9,874 meters.
Step-by-step explanation:
We have been given that a submarine is 730 m below sea level. This means that altitude of the submarine would be
.
We are also told that an airplane that is directly over the submarine is 9,144 m above sea level. The altitude of the airplane would be
.
To find the vertical distance between the submarine and the airplane, we will subtract elevation of submarine from elevation of airplane as:



Therefore, the vertical distance between the submarine and the airplane would be 9,874 meters.