Union of two sets R and S is the set which contains all element, which are in either set R or S. The symbol for union is ∪, so t<span>he </span>union of two sets is written as R∪S.
<span>In our case, the sets are:
R = {10, 15, 20}
S = {20, 25}
The union for the sets R and S are:
</span><span>D. {10, 15, 20, 25}
Intersection on the other hand is the set that contains the elements that belong both in set R and set S. </span>
It depends what is the second equation
Use a calculator i don't know
Answer:
A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words
Step-by-step explanation:
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