Question

Given

D = {x | x is a whole number}
E = {x | x is a perfect square between 49 and 100}
F = {x | x is an even number between 10 and 20}


1.The expression D∪F means (64 and 81) OR (all whole numbers)
2.The expression D∩F means (16,22,24,18) OR (12,14,16,18)
3.The expression D∩E means (all whole numbers) OR (64,81)
4.The expression E∩F means (all whole numbers) OR (empty set)
5.The expression D∩(E∪F) means (empty set) OR (81,64,12,14,16,18)

Answer 1

What is the question?

Answer 2

with the given info choose what goes with it like number one is it 64,81 or all whole numbers
@nelsonjedi

Answer 3

1. all whole numbers (U is like D or F, so whole number or even, but all evens are whole)
2. 12,14,16,18 (n is like D and F, so it has to be whole #s between 10 and 20)
3. 64,81 (whole #s that are perfect squares between 49 and 100)
4. empty set (there are no #s that are between 10-20 and 49-100)
5. 81,64,12,14,16,18 (perfect squares between 49 and 100 or even #s between 10 and 20 that are whole #s)

Answer 4

@smored can you help me with another one

Answer 5

depends, what is it?

Answer 6

its kind of the same

Answer 7

ok

Answer 8

Match the following.

Given

D = {x | x is a whole number}
E = {x | x is a perfect square < 100}
F = {x | x is an even number between 10 and 20}

1.D ∩ E
2. D ∩ F
3. D ∩ (E ∩ F)
4. D ∪ (E ∩ F)
5. D ∩ (E ∪ F)

A. {1, 4, 9, 16, 25, 36, 49, 64, 81}
B.{12, 14, 16, 18}
C.{1, 4, 9, 16, 25, 36, 49, 64, 81, 12, 14, 18}
D.{all whole numbers}
E.{16}
so match the letter with the number

Answer 9

@smored

Answer 10

need explanation?

Answer 11

if you want

Answer 12

1 - A (whole numbers that are perfect sqrt)
2 - B (whole #s that are even AND 10<x<20)
3 - E (the only whole # that is a perfect sqrt between 10 and 20 AND <100 is 16)
4 - D (whole numbers OR 16, so it's all whole #s)
5 - C (whole #s that are perfect sqrt <100 and even between 10 and 20)

Answer 13

thanks