Please Help! emergency !
"If C = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20} and D = {numbers divisible by 4 from 1 to 16}, what is C ∩ D?"

a.{all numbers from 1 to 20}
b.{9, 10, 11, 13, 14, 15, 17, 18, 19}
c.{8, 12, 16}
d.{4, 8, 12, 16, 20}

Question

Please Help! emergency !
"If C = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20} and D = {numbers divisible by 4 from 1 to 16}, what is C ∩ D?"

a.{all numbers from 1 to 20}
b.{9, 10, 11, 13, 14, 15, 17, 18, 19}
c.{8, 12, 16}
d.{4, 8, 12, 16, 20}

campbell_st · Answer

the intersection are the elements common to both sets

find the numbers between 1 and 16 divisible by 4

D{ 4, 8, 12, 16}

now what are the numbers in Set C that are also in Set D.... that will be your answer

anonymous · Answer

8, 12, 16, 20??

campbell_st · Answer

ok... remember set D are the numbers divisible by 4 between 1 and 16.

anonymous · Answer

so the answer would be C since that is the only one that would match that discription , correct??

campbell_st · Answer

ok... set D ={ 4, 8, 12, 16}

and which of these numbers are also in set C

campbell_st · Answer

so C is correct

anonymous · Answer

okay I get it now. Thank you so much!

campbell_st · Answer

hope it helps

anonymous · Answer

thank you :)