- What is the union of the sets A= {1, 2, 3} and B= {3, 4, 5}?
(a) The set {3}.
(b) The set {1, 2, 3}.
(c) The set {3, 4, 5}.
(d) The set {1, 2, 3, 4, 5}.
(e) The null set.
- What is the intersection of the sets A= {1, 2, 3} and B= {3, 4, 5}?
(a) The set {3}.
(b) The set {1, 2, 3}.
(c) The set {3, 4, 5}.
(d) The set {1, 2, 3, 4, 5}.
(e) The null set.
- The first few primes are 2, 3, 5, 7, 11, 13, 17, 19, and 23. Using this information
along with a calculator, we can determine that one of the following numbers is prime.
Which one?
(a) 407
(b) 423
(c) 437
(d) 457
(e) 473
- A rational number can always be expressed as
(a) an endless, nonrepeating decimal.
(b) a ratio of 1 to an integer.
Final Exam 575
x
y
Graph of
a quadratic
function
Origin point
(0,0)
Figure FE-11 Illustration for Final Exam
Questions 112 and 113.
