SPRING 2017
MATH 0409 EXAM 3 ( 8 WEEKS )
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Factor.
1) 5x2 + 25x
A) 5x(x + 5)
1)
B) 5x2 (x + 5)
C) 5x(x + 25)
2) t(7 - m) + s(7 - m)
A) t(7 - m) + s
C) (t - s)(7 - m)
Factor by grouping.
3) x3 - 7x 2 - 3x + 21
A) (x + 7)(x2 + 3)
Factor.
4) x2 + 3xy - 10y2
A) (x + 5y)(x - 2y)
Factor completely.
5) x2 - 3x - 54
A) (x - 6)(x + 9)
6) x2 + 16xy + 64y2
A) (x + 8y)2
D) x(5x + 25)
2)
B) (t + s)(7 - m)
D) No common factor
B) (x + 7)(x3 - 3)
C) (x - 7)(x2 + 3x)
D) (x - 7)(x2 - 3)
B) (x - y)(x + 2y)
C) (x - 5y)(x + 2y)
D) (x - 5y)(x + y)
B) (x - 6)(x + 1)
C) (x + 6)(x - 9)
D) Prime
B) Prime
C) (x + 8y)(x - 8y)
D) (x - 8y)2
7) 49k2 - 36m 2
10)
B) None
8)
C) d = 8
D) d = 8, 3
27m 5p2
9)
3m 8p
A) 9mp
B)
9m 3
C)
p
9p
m3
D) 9m 3 p2
y2 + 2y
10)
y2 + 9y
A)
y+2
y+9
6)
B) (7k + 6m)(7k - 6m)
Find all numbers for which the rational expression is not defined.
d-3
8)
8-d
9)
5)
D) (7k + 6m)2
C) Prime
Simplify.
4)
7)
A) (7k - 6m)2
A) d = -8
3)
B)
8y + 12
15y + 54
C)
1
y2 + 2y
y+ 9
D)
y+ 2
y2 + 9y
Multiply and, if possible, simplify.
5p - 5 5p2
·
11)
p
7p - 7
11)
A)
25p
7
B)
7
25p
C)
35p2 + 70p + 35
5p3
D)
25p3 - 25p2
7p2 - 7p
Divide and, if possible, simplify.
x2 - 64 8x + 64
÷
12)
x
x-8
A)
(x - 8)2
8x
12)
B)
(x - 8)2
x
C)
Find all square roots of the number.
13) 64
A) 9, -9
B) 8, -8
8x
(x - 8)2
C) 16, -16
D)
8(x + 8)2
x
D) 10, -10
Find the perimeter of the polygon.
14)
27 m
17 m
14)
17 m
A) 33 m
Find the area.
15)
13)
33 m
B) 94 m
C) 50 m
D) 459 m
15)
20 m
21 m
A) 420 m2
B) 41 m2
C) 840 m2
D) 82 m2
16)
16)
4 in.
A) 64 in.2
8 in.
B) 16 in.2
C) 32 in.2
2
D) 12 in.2
17)
17)
9.5 in.
8 in.
7.5 in.
A) 25 in.2
B) 68 in.2
Find the area of the shaded region.
18)
5 yd
C) 60 in.2
D) 136 in.2
18)
6 yd
5 yd
23 yd
18 yd
A) 389 yd2
B) 379 yd2
C) 74 yd2
D) 384 yd2
Find the perimeter of the polygon.
19)
8m
2m
22 m
19 m
A) 118 m
13 m
12 m
22 m
19)
20 m
B) 99 m
C) 88 m
D) 105 m
Find the area.
20)
20)
30 in.
33 in.
A) 990 in.2
B) 495 in.2
C) 247.5 in.2
3
D) 450 in.2