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Sagot :
For given expressions:
1. 3x+2 ≥ {}
This is not a sentence.
2. x-y=1
This is an open sentence.
3. 2x+y > 0
This is an open sentence.
4. x4y+=
This is not a sentence.
In this question, we have been given some expressions.
We need to check which expression is a sentence.
We know that a mathematical sentence makes a statement about two expressions. The two expressions wither use variables, numbers or combination of both.
1. 3x+2 ≥ {}
this is not a sentence. Because when we use comparision than we must have two value to compare.
2. x-y=1
We know that an open sentence containing the sign ‘=‘
So, above expression is a sentence.
For x = 3 and y = 2,
x - y = 3 - 2
= 1
For x = 9 and y = 8,
x - y = 9 - 8
= 1
3. 2x+y > 0
This is an open sentence, as it is not known whether or not the sentence is true or false
4. x4y+=
This is not a sentence.
Therefore, for given expressions:
1. 3x+2 ≥ {}
This is not a sentence.
2. x-y=1
This is a sentence.
3. 2x+y > 0
This is a sentence.
4. x4y+=
This is not a sentence.
Learn more about an expression here:
https://brainly.com/question/1859113
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