Jose is applying to college. He receives information on 7 different colleges. He will apply to all of those he likes. He may lik
1 answer:
Answer:
128 posibilities
Step-by-step explanation:
We have 7 colleges (A,B,C,...,H) which form a set with seven elements.
What you are asking is the number of elements (or cardinality) of the set that contains all possible sets formed by those 7 elements (or the "power set").
It is known that if n is the number of elements of a given set X, then the cardinality of the power set is .
Therefore, there are or 128 possibilities (or elements) for the set of colleges that he applies to.
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