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Mathematics 15 Online
OpenStudy (jchick):

Choose the correct description of the graph of the compound inequality x - 1 less than or greater to 9 or 2x greater than or equal to 24

OpenStudy (jchick):

Choose one answer. a. A number line with an open circle on 10, shading to the left, and an open circle on 12, shading to the right. b. A number line with an open circle on 10, an open circle on 12, and shading in between. c. A number line with a closed circle on 10, a closed circle on 12, and shading in between. d. A number line with a closed circle on 10, shading to the left, and a closed circle on 12, shading to the right.

OpenStudy (jchick):

@POsitr0n

OpenStudy (jchick):

@pooja195

OpenStudy (p0sitr0n):

x-1 < 9 > x-1 or 2x >= 24 something like this.

OpenStudy (jchick):

Yes Exactly

OpenStudy (welshfella):

i can't get my head around the first part 'less than or greater to 9'?

OpenStudy (welshfella):

are you sure its not less than or equal to 9?

OpenStudy (jchick):

Sorry my computer does that it is less than or equal to I apologize for that

OpenStudy (welshfella):

oh ok

OpenStudy (welshfella):

x - 1 <= 9 so x <= 10

OpenStudy (jchick):

I can eliminate A

OpenStudy (welshfella):

2x >= 24 divide both sides by 2

OpenStudy (welshfella):

yes it will be a closed circle on 10 because of the <=

OpenStudy (jchick):

C right?

OpenStudy (welshfella):

first finish off 2x >= 24 x >= ?

OpenStudy (jchick):

12

OpenStudy (jchick):

x >= 12

OpenStudy (welshfella):

right

OpenStudy (welshfella):

so which option do you think is correct?

OpenStudy (welshfella):

|dw:1426273486745:dw|

OpenStudy (jchick):

D actually

OpenStudy (welshfella):

yes that sight

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