Mathematics
7 Online
OpenStudy (anonymous):
Which of the following is a solution for |4x – 6| > 8?
A.
x = 0
B.
x = 2
C.
x = 3
D.
x = 4
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OpenStudy (anonymous):
do you have any ideas?
OpenStudy (anonymous):
x < -1/2 or x > 7/2
OpenStudy (anonymous):
you must change 'x' to some number
0
2
3
4
OpenStudy (anonymous):
dnt no how
OpenStudy (anonymous):
|4 * 0 - 6| > 8 ????
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OpenStudy (anonymous):
|4 * 2 - 6| > 8??
|4*3-6|>8 ?
|4*4-6|>8 ???
OpenStudy (anonymous):
no thats not how it works
OpenStudy (anonymous):
im confused
OpenStudy (anonymous):
answer "D" not correct ???
OpenStudy (anonymous):
@StudyGuidance
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OpenStudy (welshfella):
you need to solve
4x - 6 > 8
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
im getting so confused about wat i am supposed to do now
OpenStudy (welshfella):
solve that inequality
you'll get x > some number
then pick the option which is greater than that number
OpenStudy (anonymous):
|4x-6>8
4x-6<-8 or 4x-6>8
4x-6<-8 :x<-1/2
4x-6>8 :x>7/2
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OpenStudy (anonymous):
thats wat i got which is not rite
OpenStudy (welshfella):
yes it is
which of the options is a number greater than 7/2 (3.5) ?
OpenStudy (anonymous):
so my answer wld be C. 3
OpenStudy (welshfella):
No
- the answer is a number GREATER than 3.5
OpenStudy (welshfella):
any number greater than 3.5 would be a solution but there is only one option to fit the bill
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OpenStudy (anonymous):
omg. so im gonna put 3
OpenStudy (welshfella):
no 3 is wrong - 3 is not greater than 3.5
which one is?
OpenStudy (anonymous):
so its d. 4
OpenStudy (welshfella):
yes
OpenStudy (welshfella):
4 is the only option greater than 3.5