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Mathematics 12 Online
OpenStudy (anonymous):

when x is an integer, what is the solution set of 5≤x <8? a: {5,6,7,8} b:{5,6,7} c: {6,7,8} d: {6,7}

OpenStudy (swissgirl):

Well let me help you out with a and you can figure out the rest

OpenStudy (anonymous):

ok ;) @swissgirl

OpenStudy (swissgirl):

Firstly lets look at the notation \( 5 \leq x \leq 8\) This translates to X is less than 8 and greater than or equal to 5

OpenStudy (swissgirl):

So what can x equal?

OpenStudy (swissgirl):

What values can x take on? X can equal anything less than 8 or greater than 5 including 5 So x={5,6,7}

OpenStudy (swissgirl):

Do you follow so far?

OpenStudy (anonymous):

yeah, i see what your saying :) @swissgirl

OpenStudy (swissgirl):

Now a: The set is {5,6,7,8} The question is asking us what values from this set can x be

OpenStudy (swissgirl):

So what wld ur guess be?

OpenStudy (anonymous):

so x = {5,6,7,8} ???

OpenStudy (anonymous):

@swissgirl

OpenStudy (swissgirl):

Can x=8? What did we say in the beggining?

OpenStudy (anonymous):

Whoops ;/ lol anything less than 8 and greater than 5 @swissgirl

OpenStudy (swissgirl):

So what elements in this set equals x?

OpenStudy (swissgirl):

We scratched 8 But can x equal 5,6 and 7?

OpenStudy (anonymous):

hold on.....yes ;) I found out the answer.. i think it is {5,6,7} @swissgirl

OpenStudy (swissgirl):

Yessssssss

OpenStudy (swissgirl):

Now lets go on to b The set contains {5,6,7} so what is eh solution set for x?

OpenStudy (anonymous):

the integers that satisfy these conditions are 5,6,7 @swissgirl

OpenStudy (swissgirl):

Yesssss but we would right it as a set x={5,6,7}

OpenStudy (swissgirl):

How abt the set {6,7,8}?

OpenStudy (anonymous):

Its ok :) I got it..... Thank you sooooooo much @swissgirl

OpenStudy (swissgirl):

Ok GREAT :)

OpenStudy (anonymous):

Thank you sooo much @swissgirl

OpenStudy (swissgirl):

Your welcome

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