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Mathematics 14 Online
OpenStudy (anonymous):

Can soeone pleaseee help with with 10 questions on my review???

OpenStudy (anonymous):

Which expresses the given inequality in interval notation? x < 4 (Points : 4) Option A: x E(4,infinity) Option B: x E [4, infinity) Option C: x E(-infinity,4) Option D: x E (-infinity , 4] I think the answer is C

OpenStudy (anonymous):

@mathmath333 @mathgeek27 @gleem @geekfromthefutur @TheSmartOne @ydoievenexist @amistre64

TheSmartOne (thesmartone):

@cookiimonster27 You are correct... ^_^

TheSmartOne (thesmartone):

Sorry, kind of replied a little late...

OpenStudy (anonymous):

Yay thanks next one :)

OpenStudy (anonymous):

Which is the solution set to the given inequality? 2x +6 < 8 a. x E(-infinity,1] B. x E (1, infinity) C. x E [ 1, infinity] D. x E (-infinity, 1) im not sure about this one

OpenStudy (anonymous):

@TheSmartOne

OpenStudy (mathmath333):

first simplify it

OpenStudy (anonymous):

x<1

TheSmartOne (thesmartone):

So what do you think it is now?

OpenStudy (anonymous):

A or D

OpenStudy (mathmath333):

\[\infty <x<1\] it is same as this

OpenStudy (mathmath333):

sry -\infinity will be there

OpenStudy (anonymous):

so its D?

OpenStudy (mathmath333):

\(-\infty <x<1\)

OpenStudy (mathmath333):

yes

OpenStudy (anonymous):

:) cool next one for this one I think its D

TheSmartOne (thesmartone):

Add the y and just subtract the 4..

TheSmartOne (thesmartone):

That would be easier instead of taking the 5 to the other side and dividing by -1 and having to flip the sign..

OpenStudy (anonymous):

arent you just left with y>1?

TheSmartOne (thesmartone):

actually y<1

OpenStudy (anonymous):

because you flip the sign ohh ok

TheSmartOne (thesmartone):

So Option B ^_^

OpenStudy (mathmath333):

y>1 is same as y<1

OpenStudy (anonymous):

oh okay yayy

TheSmartOne (thesmartone):

^^ actually not

OpenStudy (anonymous):

On to the next one

OpenStudy (mathmath333):

oops sry, i mean y>1 is same as 1<y

TheSmartOne (thesmartone):

y>1 means y can be 1.1 all the way to infinity y<1 means y can be anything from.9 to -infinity

TheSmartOne (thesmartone):

lol that's okay.. ^_^

OpenStudy (anonymous):

Which represents the given compound inequality in interval notation? X greater than or equal to x < -4 A. x E (-infinity,-4) U [8, infinity) B. x E (-4,8] C.x E [-4,8) D.x E ( I infinity,-4] U (8, infinity)

OpenStudy (anonymous):

ops its suppose to say X greater than or equal to 8 or x < -4

TheSmartOne (thesmartone):

Ok that makes more sense..

OpenStudy (anonymous):

my fault sorry

OpenStudy (mathmath333):

|dw:1413923043547:dw|

TheSmartOne (thesmartone):

^^^

OpenStudy (anonymous):

is it D?

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