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Which expression is equivalent to -1.3 - (-1.9)āˆ’1.3āˆ’(āˆ’1.9)minus, 1, point, 3, minus, left parenthesis, minus, 1, point, 9, right parenthesis? Choose 1 answer: Choose 1 answer: (Choice A) A -1.3+(-1.9)āˆ’1.3+(āˆ’1.9)minus, 1, point, 3, plus, left parenthesis, minus, 1, point, 9, right parenthesis (Choice B) B -1.3+1.9āˆ’1.3+1.9minus, 1, point, 3, plus, 1, point, 9 (Choice C) C -1.9+1.3āˆ’1.9+1.3minus, 1, point, 9, plus, 1, point, 3 (Choice D) D 1.3+1.91.3+1.9

Respuesta :

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Answer:

Choise B: [tex]-1.3+1.9[/tex]

Step-by-step explanation:

For this exercise you must remember the multiplication of signs:

[tex](+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-[/tex]

Ā 

By definition, equivalent expression have the same value.

Then, you can find an equivalent expression to the expression provided in the exercise by simplifying it.

So, given:

[tex]-1.3 - (-1.9)[/tex]

To simplify it, you can distribute the negative that is located outside of the parentheses (in order to eliminate the parentheses).

Applying this procedure, you get the following equivalent expression:

[tex]-1.3 - (-1.9)=-1.3+1.9[/tex]

Therefore, as you can notice, the expression obtained matches with the one shown in Choice B.

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