21: If the length of the rectangle is (9x + 3) units and the width is 3x units, find the perimeter.
12x + 3
24x + 6
27x2 + 9
36x + 12
22: Which best describes the graph of x = 5?
horizontal line
slanted line
vertical line
parabola
23: What is the solution set to this system?
2x - y = 4
6x - 3y = -18
(2, 3)
(1, 1)
(1, -5)
no solution
24: A freight train leaves a station travelling a constant speed of 30 miles per hour (mph). A passenger train leaves at the same time and travels at a constant speed of 35 mph. In how many hours will the trains be 15 miles apart? (set up a grid and use the formula d = r t)
3 hours
4 hours
5 hours
6 hours
25: What is the solution to this system?
y = 2x - 3
x + 2y = 14
(-1, 2)
(4, 5)
(8, 6)
no solution
26: Simplify:
(x3 + 4x2 - 2x + 5) - (3x3 - 3x2 + x - 2) =
x3 + 3x2 + 3x + 1
x3 + 3x2 + 3x + 1
-2x3 + 7x2 - 3x + 7
2x3 - 8x2 - 8x + 11
27: Solve for x:
2x2 + 3x - 1 = 0
(-5 ± √13) / 2
(-7 ± √13) / 4
(-3 ± √17) / 2
(-3 ± √17) / 4
28: What's missing in this factorization?
x2 + 7x + 10
(x + 2)(____)
x + 5
5x + 6
x + 1
2x - 5
29: Solve for y.
3(y − 4) = 4y + 2 − y
0
1
-4
no solution
30: What is the y-intercept of 3x - 2y = 0?
0
-1/2
1
1/3
31: Find the slope of the line through (-2, -3) and (3, -3).
1
0
-3
undefined
32: Simplify:
(-1/2) - (-1/3) =
-1/6
5/12
-5/6
-1/2
33: What is the distance between the origin and the point (-4, -5)?
√52
4√2
√41
2√2
34: What is the slope of the line 3x + 5y = 15?
5/3
-1/4
4.6
-3/5
35: Simplify:
25x2 + 10x + 1
--------------------------------------...
12x − 18 x 10x − 15
--------------------------------------...
25x2 - 1
(5x2 + x − 1) / 3
[5(5x + 1)] / [6(5x - 1)]
(25 - 2x) / [3(x - 3)]
(5x2 + x + 1) / 3
36: Angles A and B are supplementary angles because their sum is 180 degrees. The measure of angle A is ten less than 4 times the measure of angle B. Find the measure of angle B?
45 degrees
38 degrees
142 degrees
36 degrees
37: Multiply:
(3x - 1)(2x2 + 5x - 8) =
3x3 - 3x2 + 2x + 9
6x3 + 13x2 - 29x + 8
2x3 - 8x2 - 8x + 11
6x2 + 18x + 9
38: Evaluate:
32 + 5a0 =
14
1
11
10
39: Simplify:
3 / (2 - √11)
5 + √11
2√3
-2/7
-[3 (2 + √11 ] / 7
40: Solve the inequality for x: -9x - 3 > -12
x < 1
x < -1
x > 1
x > -1
41: Simplify:
√15 · √3 + √15 · 2√5 =
6√2
19 − 13√2
3√5+ 10√3
23 + 4√15
42: Simplify:
(-15x2y-3) ÷ (3x-4y2) =
-5x / y
1 / (5x2y)
-5x2y
(-5x6) / y5
43: Simplify:
2x + 1
--------------------------------------...
x - 1
--------------------------------------...
x2
--------------------------------------...
x + 4
--------------------------------------...
x + 3
--------------------------------------...
x2
(2x - 1) / (x + 3)
(25 - 2x) / [3(x - 3)]
(x + 1) / (x - 1)
(x2 + y2) / (x2y2)
44: Solve the equation for y: 4x + 2y = 10
y = (4x + 10)/2
y = (4x - 10)/2
y = -2x + 5
None of the above
45: For a right triangle ABC with right angle C, if BC = 5 and AB = 6, what is the length of AC in simplified form?
√11
4√2
2√3
3
46: What is the equation of the line through points (-2, -1) and (2, -6)?
y = (3/2) x + 1
y = (½) x - 1
y = (-5/4) x - (7/2)
y = -2x + 3
47: Name the property that makes this statement true
7(5 − 2) = 7(5) − 7(2) =
Distributive Property
Associative Property
Commutative Property
Addition Equality
48: Simplify:
√-9 =
3
-3
2
not a real number
49: Simplify this rational expression:
(x2 + 10x + 25) / (5x + x2) =
[5(5x + 1)] / [6(5x - 1)]
(x + 5) / x
(x - 1) / (x + 1)
x / 15
50: Multiply:
(2x + 3)(x + 5) =
2x2 + 13x + 15
2x2 + 5x + 3
x2 + 3x + 2
2x2 - 3x - 10
51: Simplify:
√243a + √147a + √72a3b2
13√3a + 6ab√2a
16√3 + 6ab√2a
13√3a + 3ab√2a
16√3a + 6ab√2a
52: Simplify:
x
--------------------------------------...
x + 3 + 1
--------------------------------------...
x - 1 = 4
--------------------------------------...
x2 + 2x - 3
4
1
-1
no solution
53: 32 is what percent of 40?
80%
75%
62%
88%
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