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Misha Larkins [42]
3 years ago
13

Help me pleaseee !!

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
7 0

Answer:

the answer is 2

Step-by-step explanation:

because 2x2 is 4 so x=2

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The cube of a number decreased by two times the same number
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x^3-2x

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3 years ago
An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual income.
yulyashka [42]

Answer:

SE=$128.13

Step-by-step explanation:

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SE=\frac{s}{\sqrt{n}}\\\\=\frac{2050}{\sqrt{256}}\\\\=128.125\approx128.13

Hence, the standard error is $128.13

4 0
3 years ago
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CaHeK987 [17]
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