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Mathematics 13 Online
OpenStudy (estherstap):

Write the set of points from -8 to -5 but excluding -6 and -5 as a union of intervals

OpenStudy (brainzonly):

that's easy! :)

OpenStudy (brainzonly):

-6 and -5 are the same point on the # line, but -8 and -7 are separate.

OpenStudy (estherstap):

I get that. I just don't understand how to right it with the U. i find that so confusing

OpenStudy (estherstap):

wait... where did negative 7 come from?

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