Homework Help: Math

Posted by Jenna on Thursday, July 7, 2011 at 11:38pm.

Given the following sets, select the statement below that is true.
A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t}

B ⊂ C and C ⊆ A
C ⊆ B and D ⊂ B
D ⊂ A and A ⊂ D
B ⊂ A and C ⊂ D
D ⊆ A and A ⊂ C

Math - Reiny, Friday, July 8, 2011 at 12:14am
B ⊂ C and C ⊆ A ---- false AND true ---> false
C ⊆ B and D ⊂ B
D ⊂ A and A ⊂ D ---- true AND false ---> false
B ⊂ A and C ⊂ D
D ⊆ A and A ⊂ C

try the others, remember that for
true/false AND true/false , only true AND true ---> true
any other combination is false.
Math - Jen, Friday, July 8, 2011 at 12:20am
This one is particularly confusing to me :/

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