If a = {4, 7, 10, 13, 17} and b = {3, 5, 7, 9}, then which of the following statements is false?

1) ∅⊂a
2) b⊆b
3) b⊂a

The correct option is 3.

Step-by-step explanation:

The given sets are

A = {4, 7, 10, 13, 17}

B = {3, 5, 7, 9}

We know that ∅ is the subset of all sets, therefore ∅⊂A is true.

Each set is the subset of itself, therefore B⊆B is true.

Set B is called a subset of A if and only if all the element of B belong to set A.

Since 3,5,9 ∉ A, therefore B⊄A .

B⊆B is a false statement.

Therefore correct option is 3.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

44

step-by-step explanation:

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