2 years ago

Answer quickly please

Mathematics

1 answer:

adell [148]2 years ago

8 0

Answer:

A C E

Step-by-step explanation:

pls mark brainliest

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Find the value of n such that (-5)-(-7)>(+9)+(n)

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Answer:

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Step-by-step explanation:

First, you have to move all the numbers to one side:

(-5) - (-7) > 9 + n

-5 + 7 > 9 + n

9 + n < 2

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(Hope this can help)

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Considering the situation described, we have that:

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At the alternative hypothesis, it is tested if the mean has been reduced, that is, it is now of less than 5.2 hours, hence:

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More can be learned about hypotheses tests at brainly.com/question/26454209

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