An extensive study conducted in 1980 concluded that the mean mercury level in oysters from the White Bear estuary was 0.017 part
s per million (ppm) with a standard deviation ppm. In 2012, a sample of 43 oysters from the same estuary exhibited a mean mercury concentration of .
1 answer:
Answer:
0.00039534883
Step-by-step explanation:
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Step-by-step explanation:
cot B = 48/55
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Step-by-step explanation:
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Difference of two squares is of the form (a + b)(a - b) or vice-versa. Here, a = -5x and b = 3.
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