Question

The zip code of a location consists of five digits chosen from the set Z shown below.
Z = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

The set R represents the digits in the zip code for Rubonia.
R = {3, 4, 2, 2, 1}

The set S represents the digits in one of the zip codes for Sarasota.
S = {3, 4, 2, 4, 3}

How many prime numbers are in the set ~(R union S) ?

Answer 1

n(L U K) = 2 which is 3 and 7. 0 is not an odd number

Answer 2

so 2?

Answer 3

yes

Answer 4

Prime numbers are numbers divisible by 1 and themselves..

so, for the set ~(R union S) is nothing but R N S...

R N S = { 2, 3}...

Answer 5

thank you

Answer 6

welcome