{4} = {x|x is an even counting number between 6 and 12}

A. False; 4 is less than 6

B. True

C. False; 4 is less than 12

D. False; 4 is a set, and not an element of the set.

Question

{4} = {x|x is an even counting number between 6 and 12} 

 A. False; 4 is less than 6   

B. True   

C. False; 4 is less than 12  

 D. False; 4 is a set, and not an element of the set.

cwrw238 · Answer

how are sets written ?

anonymous · Answer

What do you mean

anonymous · Answer

I think it would be D

cwrw238 · Answer

if I said   set A as elements 3 and 4 how would you write it?

anonymous · Answer

I dont know

cwrw238 · Answer

{3,4}      in curly brackets

so what is {4} - is it a set?

anonymous · Answer

Let U = {q, r, s, t, u, v, w, x, y, z} 
A = {q, s, u, w, y} 
B = {q, s, y, z} 
C = {v, w, x, y, z}. 

Determine whether the set is well defined. The set of rivers that flow south to north

A. well defined	

B. not well defined

cwrw238 · Answer

{4} is a set UditKulka is right