Question

Select the statements that are true based on the following given information.
D = {x | x is a whole number}
E = {x | x is a perfect square < 36}
F = {x | x is an even number between 20 and 30}
1.The expression D∩E is {1, 4, 9, 16}.
2.The expression D∩F is {12, 14, 16, 18}.
3.D(EF) is {all whole numbers}.
4.(E∩F) is the empty set.
5.The expression D∩(EF) is 25.

Answer 1

D(EF)? What does that mean?

Answer 2

1. true because they are all perfect squares placing them in E, they are all whole numbers thus allowing them to be a subset of D

Answer 3

2. False neither of the numbers are between 20 and 36

Answer 4

30 typo

Answer 5

3. D\[\cup\](E\[\cup\]F) is {all whole numbers}.

Answer 6

3. True because none of the numbers in sets E and F are all whole thus making their products whole, then whole numbers times whole numbers still gives you whole numbers.

Answer 7

It is 3 then if your terminology means the union of D, E and F

Answer 8

4. False because 25 is in F, and is a perfect square so it can be a subset of E

Answer 9

what about 5

Answer 10

i am wrong about 4 25 is not even 4 is true

Answer 11

5 is also true

Answer 12

I will pay you guys to answer the rest of my question for the next hour

Answer 13

How is 5 true since there is no number in set E that can multiply with a number in set F to get the number 25, therefor making 5 false.

Answer 14

listen to me boys! do the rest of my problems tonight and i will good answer every single answer you have ever posted