Find the number of proper subsets of the set.
-$\{ x \mid x$ is an even number between 19 and $33 \}$
A) 128
B) 64
C) 127
D) 32

Question

Quizplus · Accepted Answer

The even numbers between 19 and 33 are 20, 22, 24, 26, 28, 30, and 32. This gives us a set with 7 elements. The number of subsets of a set with 7 elements is $2^7 = 128$. A proper subset is any subset except the set itself, so there are $128 - 1 = 127$ proper subsets.

Find the Number of Proper Subsets of the Set {x∣x\{ x \mid x{x∣x

Find the Number of Proper Subsets of the Set $\{ x \mid x$