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Mathematics 21 Online
OpenStudy (anonymous):

What is the solution set for the inequality 2x - 1≤ -5 if the replacement set is {-3, -2, -1, 0, 1, 2, 3} ? a. {-3, -2, -1, 0, 1, 2, 3} b. {-2, -1, 0, 1, 2, 3} c. {-3, -2} d. {-3}

OpenStudy (anonymous):

\[2x \le -4\] \[x \le -2\]

OpenStudy (anonymous):

2x <= -4 x <= -2 now check!

OpenStudy (anonymous):

What's the answer then?

OpenStudy (anonymous):

check the choices

OpenStudy (anonymous):

which of the seta listed fit the final inequality

OpenStudy (anonymous):

b?

OpenStudy (anonymous):

no - becuse for example 3 is not less than are equal to 2 - its greater

OpenStudy (anonymous):

evey number in the set has to be less than or equal to -2

OpenStudy (anonymous):

i ssholud have said -2 in my first post

OpenStudy (anonymous):

What is it then?

OpenStudy (anonymous):

c

OpenStudy (anonymous):

I kinda figured. I just realized that.

OpenStudy (anonymous):

both -2 and -3 fit theinequality

OpenStudy (anonymous):

its not d as -2 is in the replacement set

OpenStudy (anonymous):

follow it ok now?

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