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Mathematics 15 Online
OpenStudy (anonymous):

S is the set of prime numbers that are less than 15. A) 2,3,5,7,11,13 B)2,3,5,7,9,11,13 C)1,3,5,7,9,11,13 D)1,2,3,4,5,6,7,8,9,10,11,12,12,14,15 For questions 4&5 suppose U=1,2,3,4,5,6,7,8 A=1,3,5,7 B=4,5,6. Tell whether each statement is true or false. A subset B True False B subset U True False

OpenStudy (anonymous):

Do you know what a subset is?

OpenStudy (anonymous):

Is that where there are that many numbers are thrre

OpenStudy (anonymous):

a subset is a smaller set that is contained in a larger one.

OpenStudy (anonymous):

so, are all the elements of the set A in the set B?

OpenStudy (anonymous):

NO

OpenStudy (anonymous):

correct, and what about the second one? Are all the elements in set B in the set U?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

did you have a question about the A B C D question too?

OpenStudy (anonymous):

ya the one where it says s is the set of a prime number

OpenStudy (anonymous):

well, what is a prime number?

OpenStudy (anonymous):

a natural number greater than 1 that has no positive divisors other than 1 and itslef

OpenStudy (anonymous):

correct, so which one of those fits that definition?

OpenStudy (anonymous):

a

OpenStudy (anonymous):

you got it

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

you're welcome!

OpenStudy (anonymous):

Stupid! Wilfley didnt make sense!!!!

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