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21-10-2022
Mathematics

Answered

A scientist uses a submarine to study ocean life.
She begins at sea level, which is an elevation of 0 feet.
She travels straight down for 71 seconds at a speed of 4.9 feet per second.
She then ascends for 68 seconds at a speed of 1.4 feet per second.

At this point, how many feet is she below sea level?

Answer :

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