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sveta [45]
3 years ago
7

Can someone pls help?

Mathematics
2 answers:
Volgvan3 years ago
8 0

Answer: x=6\sqrt{3}

Step-by-step explanation:

x=\sqrt{12^{2}-6^{2}  } =\sqrt{144-36} =\sqrt{108} =6\sqrt{3}

GenaCL600 [577]3 years ago
3 0

Answer: 2

Step-by-step explanation:

Because if u divide 12÷6=2 2×6=12

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Answer:

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How large a sample must she select if she desires to be 90% confident that her estimate is within 4 ounces of the true mean?

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n = (\frac{1.96\sqrt{\sigma}}{4})^2

The minimum sample size needed is n = (\frac{1.96\sqrt{\sigma}}{4})^2. If n is a decimal number, it is rounded up to the next integer. \sigma is the standard deviation of the population.

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