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Mathematics

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You dive 21 feet from the surface of a lake in 7 seconds .
a.what is the mean change .
b.you continue diving what is your position relative to the surface after 5 more seconds

Answer :

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Today at 9:28 AM

Unit rate: 21feet / 7seconds = 3 feet per second.

3 feet per second * 5 seconds = 15 feet
21 feet + 15 feet =36 feet

You are 36 feet from the surface.

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