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Mathematics, 25.10.2021 14:00 lol6998

9 A scuba diver dove from the surface of the ocean to an elevation of -69, feet at a rate of -16.4 feet per
10
9
minute. After spending 12 minutes at that elevation, the diver ascended to an elevation of -8, feet. The
10
1
total time for the dive so far was 19 minutes. What was the rate of change in the diver's elevation during
8
the ascent? Round your answer to the nearest hundredth.
The rate of change of the diver's elevation was
ft/min.

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