The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in California wines. In a previous testing of wine specimens, lead levels ranging from 47 to 680 parts per billion were recorded. How many wine specimens should be tested if the BATF wishes to estimate the true mean lead level for California wines to within 10 parts per billion with 95% confidence? (Round your answer up to the nearest whole number.) n USE SALT

Q: (4) y=x +4 -5 -4 -3 6.

A: The given equation is: y=x+4

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A: Given 1/3 + 2/9

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A:

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A:

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A:

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A: The given inequality is 9-4x>-3

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A:

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Q: 目 +8 LI +T 现 +04 +C4 |F|E|F|| ||||4 4 4 2 2

A:

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A:

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A: Solve the given expression  given expression is 2(3+d-1)

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A:

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A: Given query is to expand (n+4)3

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A: Topic- shifting and scaling of figure

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A: See the details solution in below

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A: Solution : find length of side

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A:

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A:

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A:

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A:

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A:

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