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anonymous

  • 5 years ago

Which of the following is not an equivalent form of the compound inequality x + 18 less than or equal to 10 and x + 18 greater than or equal to 5 A: A number line with a closed circle on -13, shading to the left, and a closed circle on -8, shading to the right. B: 10 greater than or equal to x + 18 greater than or equal to 5 C: -13 less than or equal to less than or equal to x -8 D: A number line with a closed circle on -13, a closed circle on -8, and shading in between.

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  1. anonymous
    • 5 years ago
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    So start by writing it like this: 5 <= x+18 <= 10

  2. anonymous
    • 5 years ago
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    This works sort of like a triple equation now. If you add things to one side, you have to add the same amount to each other side. And remember, a number line with an open circle and a line to the right means that you do not include the value that the circle lands on (this implies greater than). A number line with a closed circle and a line to the right means that you DO include the value (this would imply greater than or equal to).

  3. anonymous
    • 5 years ago
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    Ohhh okay, gotcha

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