Let D = {0, 1, 5, 7, 8} and E = {1, 8}. What is D ∪ E? Choices: (A){0, 1, 5, 7, 8} (B){0, 5, 7} (C){1, 8} (D){1}

Understand Union of Sets: Understand the concept of union of sets. The union of two sets D and E, denoted by D ∪ E, is the set of all elements that are in D, or in E, or in both. It includes all the unique elements from both sets.Identify Elements of Sets: Identify the elements of set D and set E. We have: D = {0, 1, 5, 7, 8} E = {1, 8}Combine Elements Without Repeating: Combine the elements of both sets without repeating any elements to form the union. Since 1 and 8 are in both D and E, we do not repeat them. The union set will include all the unique elements from D and E. D ∪ E = {0, 1, 5, 7, 8}Match with Given Choices: Match the result with the given choices. The correct choice that represents D ∪ E is: (A){0, 1, 5, 7, 8}

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Let $D = \{0, 1, 5, 7, 8\}$ and $E = \{1, 8\}$ . What is $D \cup E$ ? $\newline$ Choices: $\newline$ (A) $\{0, 1, 5, 7, 8\}$ $\newline$ (B) $\{0, 5, 7\}$ $\newline$ (C) $\{1, 8\}$ $\newline$ (D) $\{1\}$

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Math Problems

Algebra 1

Unions and intersections of sets

Full solution

Q. Let

D = \{0, 1, 5, 7, 8\}

and

E = \{1, 8\}

. What is

D \cup E

\newline

Choices:

\newline

(A)

\{0, 1, 5, 7, 8\}

\newline

(B)

\{0, 5, 7\}

\newline

(C)

\{1, 8\}

\newline

(D)

\{1\}

Understand Union of Sets: Understand the concept of union of sets. $\newline$ The union of two sets $D$ and $E$ , denoted by $D \cup E$ , is the set of all elements that are in $D$ , or in $E$ , or in both. It includes all the unique elements from both sets.
Identify Elements of Sets: Identify the elements of set $D$ and set $E$ . We have: $D = \{0, 1, 5, 7, 8\}$ $E = \{1, 8\}$
Combine Elements Without Repeating: Combine the elements of both sets without repeating any elements to form the union. $\newline$ Since $1$ and $8$ are in both $D$ and $E$ , we do not repeat them. The union set will include all the unique elements from $D$ and $E$ . $\newline$ $D \cup E = \{0, 1, 5, 7, 8\}$
Match with Given Choices: Match the result with the given choices. $\newline$ The correct choice that represents $D \cup E$ is: $\newline$ (A) $\{0, 1, 5, 7, 8\}$