Given two sets, X = {things that are impossible or untrue} and Y = {mathematical statements}, which of the following are in X ∩ Y?.
A. cow jumps over the moon.
B. A cat tells you a story.
C. 99 - 2 = 1,000
D. 15^2 = 15
E. Candy is sweet.

What exactly is this question asking?

Question

Given two sets, X = {things that are impossible or untrue} and Y = {mathematical statements}, which of the following are in X ∩ Y?. 
	        A. cow jumps over the moon.
  		B. 	A cat tells you a story.
  		C. 	99 - 2 = 1,000
  		D. 	15^2 = 15
  		E. 	Candy is sweet.

What exactly is this question asking?

amistre64 · Answer

its asking 

what things are impossible and mathical
                          or
what things are untrue and mathical

amistre64 · Answer

(pvq)^r = (p^r) v (q^r)

  :)

amistre64 · Answer

since a b and e are not mathical, ignore them

amistre64 · Answer

now which of the staments left is impossible or untrue?

anonymous · Answer

c and d

anonymous · Answer

?

amistre64 · Answer

from what i can tell, yes; both C and D fit the bill

anonymous · Answer

is that the correct answer?

amistre64 · Answer

unless you mistyped the information .... then yes.

amistre64 · Answer

is your confusion as to why it is C and D?

or that it is both C and D?

anonymous · Answer

why is it c and d?

amistre64 · Answer

its asking 

what things are impossible and mathical
                          or
what things are untrue and mathical

since a,b,e are not mathical statements; they do not fit

c and d are mathical statments, so the only other thing to check is of they are either impossible, or untrue

anonymous · Answer

ohh I see thank you!

amistre64 · Answer

youre welcome