Let X = {x | x is a whole number less than 15}, Y = { x | x is a multiple of 3}, Z = {x | x is a real number greater than or equal to 5.5}.

3. What is X∩Y? (1 point)
{0, 3, 6, 9, 12}
{3, 6, 9, 12, 15}
{...,–6, –3, 0, 3, 6, 9,...}
{..., –6, –3, 0, 3, 6, 9, 12}

Question

Let X = {x | x is a whole number less than 15}, Y = { x | x is a multiple of 3}, Z = {x | x is a real number greater than or equal to 5.5}.

3.   What is X∩Y?  (1 point)
{0, 3, 6, 9, 12}
{3, 6, 9, 12, 15}
{...,–6, –3, 0, 3, 6, 9,...}
{..., –6, –3, 0, 3, 6, 9, 12}

anonymous · Answer

@Haseeb96 @HelpBlahBlahBlah

cwrw238 · Answer

dont think so - 0 is not a multiple of 3

cwrw238 · Answer

do you know what the symbol ∩  means?

anonymous · Answer

Let X = {x | x is a whole number less than 15}, Y = { x | x is a multiple of 3}, Z = {x | x is a real number greater than or equal to 5.5}.
 

4. what is XUY ? 

A. 0,3,6,9,12

b.0,1,2,3,4,5,6,7,8,9,10,11,12,13,14

c. 0,3,6,9,12,…

d. -3 , 0,3,6,9,12

anonymous · Answer

i thought it is A?

cwrw238 · Answer

the symbol means intersect - an element must be both in set X and set Y.
set Y contains multiplies of 3 and 0 is not a multiple of 3 so it cannot be option A