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Harrizon [31]
3 years ago
9

Pls help will give brainliest and 5 star

Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0

I just learned about this!

How to get Number 1: This closed circle represents it is more than or equal to 4. so it should be x ≥ 4.

How to get number 2: This circle is open which means it is NOT equal to or close to the number so it should be x≠-4. Because you don't know how much x is and the lines and arrows represent it is not equal.

Number 3: The first option is the correct one as it says clearly x is less than -3 so it should be a open circle.

Number 4: The 2nd one is right because x is less than -1 or equal to -1.

klasskru [66]3 years ago
4 0

answer:

1. second choice

2. i'm not sure about this one, but i know it's not the second choice :)

3. first choice

4. second choice

i attached a image example if you need more help on it. hope this helps! ❤ from peachimin.


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<em>Greetings from Brasil...</em>

The average for a set of 9 elements will be

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<em>(I chose S to remember a sum)</em>

Let us think.....

S ÷ 9 = 20

S = 20 × 9

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According to the statement, we will include a number (element J) in the sum to obtain a mean of (20 - 4), that is:

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as seen above, (A + B + C + D + E + F + G + H + I) = 180, then

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(180 + J) = 160

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