Question

will give medal
Select all of the following true statements if R = real numbers, Z = rational numbers, and W = {0, 1, 2, ...}.

A) WZ
B) RZ
C) -1 W
D) R
E) {0, 1, 2, ...} W
F) 0 Z

Answer 1

W⊂Z,R⊂Z,−1∈W,∅⊂R,[0,1,2,...]⊆W,0∈Z

Answer 2

W⊂Z
is true because all the numbers in W can be written as a ration (which is a rule of rational numbers).
R⊂Z
is true because any number you can think of is real and it includes rational numbers.
−1∈W
not true, W= {0, 1, 2...) basically positive numbers and -1 is not positive.
0,1,2...⊆W
this is true because every element in {0,1,2..} is also in W.
0∈Z
0 is a rational number because 0/1 =0 (can be written as a ratio) and so it is in Z

Answer 3

thanks for the medal

Answer 4

your welcome

Answer 5

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