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The answer to which situation is best estimated by -7?

The answer to which situation is best estimated by -7?-example-1

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I wish to say that that might not be a college question it is to easy my sister that's in 7th grade came home with that exact question.

User Roman Badiornyi
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The answer is D, That is, The submarine descends 3.8 m down -- approximately 4 m

it descends 2.5m further down, approximately 3 m

The altitude of the submarine becomes -4 + -3 = - 7m

User TomBot
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