Question

S is a subset within a universal set, u. If S= {x,y,4,9,?} which could describe u , letters or numbers

Answer 1

The universal set U from which the subset was derived is; U = {keys on a keyboard }

How to find the subset of a universal set?

We are told that S is a subset within a universal set, U.

Now, If S = {x, y, 4, 9, ?}  

Given S is a subset within a universal set U;

According to the question S = {x, y, 4, 9, ?}.

Now, we need to find among the given sets the one that describes the best set.

The best Universal set will be {keys on a key board } since the keys on a keyboard will have alphabets, numbers and punctuation marks mentioned in the set

Therefore, U = {keys on a keyboard }

Read more about Universal set at; brainly.com/question/3885880

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