Y = x2 + 3x + 10 ....

Mathematics

1 answer:

Lerok [7]3 years ago

8 0

It has complex roots so we can just say it is non factorable. The sum of the roots is -3 and the product is 10.

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ivanzaharov [21]

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3 years ago

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VladimirAG [237]

Answer:

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Step-by-step explanation:

Step1:-

Sample n = 81 business students over a one-week period.

Given the population standard deviation is 1.2 hours

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Zₐ = 1.96

Margin of error (M.E) = $\frac{Z_{\alpha }S.D }{\sqrt{n} }$

Given n=81 , σ =1.2 and Zₐ = 1.96

Step2:-

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On calculating , we get

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Conclusion:-

Margin of error for a 95% of confidence intervals is 0.261

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3 years ago

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Arada [10]

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