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inysia [295]
4 years ago
6

3x^2 – 2x + 7 = 0, then (x -1/3)^2

Mathematics
1 answer:
loris [4]4 years ago
3 0
3x^{2} - 2x + 7 = 0 \\  \\ y = (x- \frac{1}{3})^{2}  \\  \\ y = x^{2} - \frac{2}{3}x +  \frac{1}{9}  \\  \\ 3y = 3x^{2} - 2x +  \frac{1}{3}     \\  \\ 3y = 3x^{2} - 2x + 7 -  \frac{20}{3}   \\  \\ 3y = 0 -  \frac{20}{3}  \\  \\ 3y = - \frac{20}{3}  \\  \\ \boxed{y =-\frac{20}{9}}
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Answer:

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b) Ha : Die ≠ fair

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Step-by-step explanation:

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a) state Null hypothesis

H0: Die = fair

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n = sample size ( number of faces a die has )

Note : After conducting hypothesis test

Pvalue ≈  0.0026

test statistic ≈ 18.30

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4 years ago
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8 0
3 years ago
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Mnenie [13.5K]

Answer:

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Step-by-step explanation:

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4 years ago
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Andre45 [30]

Answer:

It makes sense at the beginning, but I'm sure that there's a second part??

Step-by-step explanation:

Sorry love

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3 years ago
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