Question

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

The set M represents the digits in one of the zip codes for Miami.
M = {3, 3, 1, 9, 0}

The set C represents the digits in one of the zip codes for Cooper City.
C = {3, 3, 3, 3, 0}

How many prime numbers are in the set complement of M union C?

Answer 1

complement means "not in"
M union C means you combine numbers from both sets

Answer 2

so how many prime numbers are not in either set M or set C

Answer 3

wait what are prime numbers

Answer 4

numbers that do not have any divisible factors...they must be odd

Answer 5

ik im retarted

Answer 6

wait the exception is 2

Answer 7

so 2 5 6 7 8?

Answer 8

no those are not all prime numbers
can you divide 6 by another number evenly ?

Answer 9

so like what nmbers?

Answer 10

have you done factor trees in school?

Answer 11

like
10
/ \
5 2

Answer 12

so 10,5 and 2?

Answer 13

?? no i just using an example to show 10 = 5*2 therefore 10 is Not a prime number

Answer 14

5 is a prime number because nothing else can be factored out
5 = 1*5 and thats it

Answer 15

so its 5 lol?

Answer 16

ik im an idiot