A submarine changes its position by −7 meters every second.
2 answers:
Since it says that it descended -7 after every second. It then say how much will it be after 300 seconds. So... -7 times 300 is 2100 so the position it will be at is -2100 Hope it helped!
The correct anwer is -21 and how i got that is by taking -7*300 to get -21 as my answer let me know if it helped any...
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Step-by-step explanation:
so the middle rectangle part first
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then there's triangles so i'm gonna skip the divided by 2 part.
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