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Paha777 [63]
3 years ago
15

2n-3 greater than or equal to 1-4n+7n

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

-0.5

Step-by-step explanation:

2n-3 >= 1-4n+7

2n-10>= 1-4n

2n-11>=4n

-11>=2n

-0.5>= n

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Answer:

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Step-by-step explanation:

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3 years ago
In a recent year, grade 8 Washington State public school students taking a mathematics assessment test had a mean score of 281 w
sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

<u><em>Step(i):</em></u>-

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Standard deviation of the Population = 34.4

Let 'X' be a random variable in Normal distribution

Given X = 290

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<u><em>Step(ii):-</em></u>

<em> The probability that the mean test score is greater than 290</em>

P(X⁻ > 290 ) = P( Z > 2.027)

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6 0
3 years ago
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