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Mathematics 21 Online
OpenStudy (calculusxy):

Compound Inequalities MEDAL!

OpenStudy (calculusxy):

4x - 1 > 11 or 4x - 1 \(\le\) 11

OpenStudy (calculusxy):

@Nnesha

OpenStudy (calculusxy):

Find the interval notation and set-builder notation.

OpenStudy (calculusxy):

Would the interval notation be \((3, \infty)\) \(\cup\) \([\infty, 3]\)

OpenStudy (mathmale):

(3, inf) is possible, but (inf, 3] is definitely not. In such interval notation, the smaller limit always comes first. Try again.

OpenStudy (mathmale):

I could give you more meaningful feedback if you'd show all work you've done.

OpenStudy (calculusxy):

sorry i meant (negative infinity, 3)

OpenStudy (calculusxy):

4x - 1 > 11 4x > 12 x > 3 4x - 1 \(\le\) 11 4x \(\le\) 12 x \(\le\) 3

OpenStudy (mathmale):

We typically move from left to right on the number line. With that in mind, which of these two intervals comes first?

OpenStudy (calculusxy):

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