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Mathematics 14 Online
OpenStudy (anonymous):

All real numbers that are less than –3 or greater than or equal to 5 HELP !

OpenStudy (anonymous):

i would have to say less than

OpenStudy (amorfide):

-3>x>5 this? what about it?

OpenStudy (anonymous):

Thank You so so much here ar eth eanswer choices amorfide x < –3 or x ≥ 5 x < 5 or x ≥ –3 x ≤ –3 or x > 5 x ≤ –3 or x ≤ 5

OpenStudy (amorfide):

x≥5 x<-3

OpenStudy (amorfide):

< means less than ≥ means greater than or equal to

OpenStudy (anonymous):

Yeah I get that part. So the answer would be b ?

OpenStudy (amorfide):

x < –3 or x ≥ 5

OpenStudy (anonymous):

Than you ! Can you help me on another one ?

OpenStudy (amorfide):

sure

OpenStudy (anonymous):

2. The time a cake must bake is between 25 minutes and 30 minutes, inclusive. 25 < x < 30 25 ≤ x ≤ 30 25 ≤ x ≥ 30 25 < x > 30

OpenStudy (amorfide):

well if you take 25 minutes to cook something if 25 is the minimum amount of time you can have you can take 25 minutes or longer so you know you have a greater than or equal to 25 in your inequality you can take a maximum of 30 minutes this means you can have equal to 30 or less so can you spot which one you need?

OpenStudy (anonymous):

I think it's either a or b

OpenStudy (amorfide):

yes it is one of those but remember < means less than ≦ means less than or equal to > means greater than ≥ means greater than or equal too you want x to be greater than or equal to 25 but less than or equal to 30 but to make it one inequality you will have the smallest number x biggest number so 25 x 30 so what signs go there

OpenStudy (anonymous):

B ?

OpenStudy (amorfide):

yes well done

OpenStudy (anonymous):

Wow I actually did it by myself >.^ Can you still help Me ? (:

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