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Mathematics 41 Online
OpenStudy (anonymous):

Would someone mind checking my work and helping me out with a problem? Thanks you! (picture attached)

OpenStudy (anonymous):

OpenStudy (mathteacher1729):

That looks good to me. What program are you using to type the math?

OpenStudy (anonymous):

I don't know the answer to the first one...

OpenStudy (anonymous):

& I printed scree and took it into paint on my pc

OpenStudy (anonymous):

Hey, Chunger. With inequalities like that, you can solve them for x almost exactly the same way you would solve an equation. The ONLY tiny difference is that if you multiply/divide both sides by a negative number, you have to switch the direction the arrow points.

OpenStudy (anonymous):

So, for the inequality \[5x+7 \ge 2\] Let me see you try to solve that for x. \[\text{(You can type >= instead of } \ge \text{ and <= instead of } \le\]

OpenStudy (anonymous):

IS it the first choice? I just worked it out

OpenStudy (anonymous):

hold on I'll type it..

OpenStudy (anonymous):

After you solved the two inequalities for x, what did you get?

OpenStudy (anonymous):

x > -1 and x <= 3

OpenStudy (anonymous):

x>= -1, but yes =)

OpenStudy (anonymous):

Oh my bad, but thank you so much! (:

OpenStudy (anonymous):

And does that match the way the number line is shaded?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Excellent! =D

OpenStudy (anonymous):

And by the way, for question 5, you did that perfectly. When you divided both sides by (-3), you switched > to <. Great job. c-:

OpenStudy (anonymous):

thank you! :D

OpenStudy (anonymous):

My pleasure!

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