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Deffense [45]
2 years ago
15

Pls pls pls pls pls help ill mark brainliest​

Mathematics
1 answer:
Marrrta [24]2 years ago
7 0

Answer:

Y= 0. There is two that says that so I don't know if it's A or C

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An experiment involves selecting a random sample of 256 middle managers at random for study. one item of interest is their mean
Nitella [24]
The standard error of the mean is 128.125.

The formula for standard error is:

\sigma_M=\frac{\sigma}{\sqrt{N}}

With our information, we have:

\sigma_M=\frac{2050}{\sqrt{256}}=128.125.
7 0
3 years ago
Please answer.........
vodka [1.7K]
1. 4   5.-22       9.-60       13.-85
2.-7      6.-33       10.33       14.-21
3.-36    7.87        11.-78      15.-23
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7 0
3 years ago
What is the perimeter of a regular octagon in which all sides have a length of 5 feet.
sineoko [7]
Octagons have 8 sides. If each side is 5 feet then the perimeter is 40 feet. You add up the sides.
5 0
2 years ago
Read 2 more answers
(27x4 - 18x3 + 9x 2) = 3x<br> Answer ASAP
shepuryov [24]

Answer:

x = 24

Step-by-step explanation:

27 x 4 = 108

18 x 3 = 54

9 x 2 = 18

108 - 54 + 18 = 3x

72 = 3x

72/3 = x

24 = x

7 0
3 years ago
Given f(x) = –5x + 1, what is f(–2)?
Gnesinka [82]
-5(-2)+1 10+1=11 Your answer is C
4 0
2 years ago
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