Question

determine whether the following is a true statement. {thailand}⊆{thailand, cambodia, vietnam, laos} the statement is because the symbol ⊆ means and {thailand} is the given set.

Explanation:

The symbol $\subseteq$ denotes that every element of the first set is an element of the second set. The set $\{\text{Thailand}\}$ has one element, "Thailand", which is also an element of the set $\{\text{Thailand, Cambodia, Vietnam, Laos}\}$.

Answer:

The statement is true because the symbol $\subseteq$ means every element of the first set is in the second set and $\{\text{Thailand}\}$ is a subset of the given set.