Final answer:
The current altitude of the airplane, after various ascents and descents, and converting meters to feet for one of the descents, is 15,501.40 feet.
Step-by-step explanation:
To calculate the current altitude of an airplane after various ascents and descents, we need to convert all measurements to the same unit and sum them up accordingly.
The airplane started at 0 feet, then rose 21,950.75 feet at takeoff. Then, it descended 1,319.4792 meters, which we need to convert to feet:
- 1,319.4792 meters * 3.28084 feet/meter = 4,330.02514 feet
After this descent, it rose again by 6,333.8 feet, and then descended by 8,453.129 feet due to an oncoming plane.
Now we can sum up the changes in altitude:
- 21,950.75 feet (initial climb)
- - 4,330.02514 feet (first descent, converted to feet)
- + 6,333.8 feet (second climb)
- - 8,453.129 feet (second descent)
Adding these together gives us the current altitude of the airplane:
21,950.75 - 4,330.02514 + 6,333.8 - 8,453.129 = 15,501.39586 feet
Therefore the airplane's current altitude is 15,501.40 feet, rounding to two decimal places.