TEST BANK for Algebra and Trigonometry 12e (Global Edition) Michael Sullivan. Answers at the end of each Chapter. 1 Exam Name
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial. 1) 5x2y5 1) A) Monomial; variables x, y; coefficient 5; degree 2 B) Monomial; variables x, y; coefficient 5; degree 7 C) Monomial; variables x, y; coefficient 5; degree 5 D) Not a monomial Evaluate the expression. 5 4 2) 7 6 1 A) 21
2) 1 B) 7
1 C) 42
Factor the polynomial by removing the common monomial factor. 3) 3x2 - 9x A) 3x(x + 3)
B) 3(x2 - 3x)
Reduce the rational expression to lowest terms. 3x2 - 27x + 54 4) x-6 1 A) B) 3x - 9 x-6
2 D) 7
3)
C) 3x(x - 3)
D) 3x2(x - 3)
4) C) 3x2 - 36
D)
3x2 - 27x + 54 x-6
List all the elements of B that belong to the given set. 5 8 5) B = {17, 8, -19, 0, , - , 3.3, 25L, 0.258258258...} 8 5 Integers A) {17, -19} Factor the polynomial by grouping. 6) 10x2 + 15x - 8x - 12 A) (10x - 4)(x + 3)
5)
B) {17, 0}
C) {17, -19, 0}
D) {17, 0,
B) (5x - 4)(2x + 3)
C) (5x + 4)(2x - 3)
D) (10x + 4)(x - 3)
6)
Perform the indicated operations and simplify the result. Leave the answer in factored form. 7) 1 1x 8+
1 x
A)
8x + 1 x-1
8}
B)
x-1 8x + 1
C)
x+1 8x - 1
D)
x-1 8x
7)