The average rate of change that the submarine ascends during this interval is D. 72ft/s.
<h3>How to calculate the average?</h3>
From the information, the submarine is ascending upward from a depth of 6000 feet below sea level and later, the submarine is 4800 feet below sea level.
The change in the distance will be:
= 6000 - (-4800)
= 6000 + 4800
= 10800
The time taken is given as 150 seconds.
Therefore, the average rate of change will be:
= Change in distance / Time
= 10800/150
= 72
The average rate of change that the submarine ascends during this interval is 72ft/s.
Learn more about average on:
brainly.com/question/6504879
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