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Mathematics 7 Online
OpenStudy (anonymous):

can someone please check my answer .

OpenStudy (anonymous):

which number is a solution of the inequality 12<y(8-y) A. 0 B. 1 C. 2 **************** D. 3

OpenStudy (anonymous):

@Directrix @sleepyjess @dan815 @shelby1290 @AJ01 @iambatman

OpenStudy (sleepyjess):

Substitute in 2 for y and tell me what you end up with :)

OpenStudy (anonymous):

2 @sleepyjess

OpenStudy (anonymous):

.

OpenStudy (sleepyjess):

2? 2 what?

OpenStudy (anonymous):

thats what i got for the answer. i just want to make sure thats correct

OpenStudy (sleepyjess):

Ok, substitute that in, and show me what you did.

OpenStudy (anonymous):

12<y(8-y) 12<8y-y^2 adding -12 for both side 0<-12+8y-y^2

OpenStudy (anonymous):

multiply by -1 y^2-8y+12>0 (y-2)(y-6)>0

OpenStudy (anonymous):

y=2 , 6

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