MATH 110 Exam 1 Real Practice Questions (2026) | Verified Answers | A+

MATH 110 Exam 1 Real Practice Questions
(2026) | Verified Answers | A+
• set. CORRECT ANSWER: a collection or group of objects


• elements. CORRECT ANSWER: the parts of a set


• word description. CORRECT ANSWER: Describing the members of
the set using words. "the set of numbers..."


• roster method. CORRECT ANSWER: Listing each item in a set within
braces {}
ex. {1,2,3,4,5}


• set builder notation. CORRECT ANSWER: {x|x E N and x ≥ -5}


• natural numbers (N). CORRECT ANSWER: counting numbers.
1,2,3,4,5,6...


• whole numbers (W). CORRECT ANSWER: Natural numbers (
counting numbers) and zero; 0, 1, 2, 3...


• integers (I). CORRECT ANSWER: The set of whole numbers and the
negatives

, • rational numbers (Q). CORRECT ANSWER: integers plus fractions or
decimals that repeat or terminate. (ex. 1/3, 3/2)


• irrational numbers (cursive i). CORRECT ANSWER: all numbers that
are not fractions or decimals that don't repeat or terminate. (ex: pi, the
square root of 2)


• real numbers. CORRECT ANSWER: every number ever


• well-defined. CORRECT ANSWER: when it is clear whether any
object is an element of the set. (ex. the set of good tv shows = NOT well
defined. the set of rational numbers = WELL DEFINED)


• cardinality. CORRECT ANSWER: the number of elements in a set,
denoted n(A).


• cardinality of Ø. CORRECT ANSWER: zero


• equality. CORRECT ANSWER: when A and B have the same
elements (ex. {a,b} and {b,a}


• equivalency. CORRECT ANSWER: when A and B have the same
cardinality (ex. {a,b} and {c,d}


• complement. CORRECT ANSWER: sets outside of other sets. denoted
A prime is the set of all elements of U that are not in A