Suppose U = {1, 5, 7, 9, 10, 11, 15, 16, 18} is the universal set and A = {1,7,11,15,16}. What is A?
Choose the correct answer.
A. {5,9,10,18} **B. {5, 9, 10, 11, 18}
C. {5, 7, 9, 10, 18} D. {1, 9, 11, 16}
The correct answer is B. {5, 9, 10, 11, 18}. This is because A is the set that contains the elements from the universal set U that are also in set A.
To find the set A, you need to identify the elements in set A based on the given information.
A is defined as {1,7,11,15,16}, which means A consists of the elements 1, 7, 11, 15, and 16 from the universal set U.
Looking at the options:
A. {5,9,10,18}
B. {5, 9, 10, 11, 18}
C. {5, 7, 9, 10, 18}
D. {1, 9, 11, 16}
Out of these options, only option B contains the elements 1, 7, 11, 15, and 16.
Therefore, the correct answer is B. {5, 9, 10, 11, 18}.
The correct answer is B. {5, 9, 10, 11, 18}
The set A is given as {1,7,11,15,16}. To find A, we simply list out the elements from U that are also in A. In this case, we have 1, 7, 11, 15, and 16 in U.
Therefore, the set A is {5, 9, 10, 11, 18}.