The common stock of air united had annual returns of 13.7 percent, 4.8 percent, -6.7 percent, and 27.9 percent over the last four years, respectively. what is the standard deviation of these returns?

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Answer 1

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D - 9 = -13 *
Your answer

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The answer to this question is -4

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Angle 3 is 128, since they’re vertical angles. Angles 2 & 4 are 52, as 180 minus 128 is 52, and both 2 & 4 are also their own vertical angles.

So,

1 = 128
2 = 52
3 = 128
4 = 52

Davies knows that the area of his square-shaped bag is 81 feet^2. what is the length of any side of the bag?

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if it's a square all sides are 9 feet...9x9=81

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