| |
| |
1. |
Simplify the expression 9a + 5a. |
| |
|
A. |
14a |
B. |
14 · 2a |
| |
|
C. |
aa |
D. |
45a |
| |
|
Hint |
|
| |
2. |
In 1960, Chile experienced the largest earthquake of the century. The magnitude was 9.5 on the Richter scale. In 1952, Ecuador had the fourth largest earthquake. The magnitude was 0.7 less than the earthquake in Chile. What was the magnitude of the earthquake in Ecuador? |
| |
|
A. |
7.8 |
B. |
11.2 |
| |
|
C. |
10.2 |
D. |
8.8 |
| |
|
Hint |
|
| |
3. |
At the OldTyme Soda Fountain you can order floats made from cola, orange, or cherry flavored soda with either vanilla ice cream or vanilla frozen yogurt. Thus, there are 6 combinations of drinks possible (cola, ice cream), (cola, yogurt), (orange, ice cream), (orange, yogurt), (cherry, ice cream), and (cherry, yogurt). The list of all the possible outcomes is called the ______ . |
| |
|
A. |
tree space |
B. |
event space |
| |
|
C. |
sample space |
D. |
combination space |
| |
|
Hint |
|
| |
4. |
Which equation is a direct variation? |
| |
|
A. |
y = x - 2 |
B. |
y = 3 + 8x |
| |
|
C. |
x + y = 1 |
D. |
y = -5x |
| |
|
Hint |
|
| |
5. |
Refer to the diagram below. What polynomial is modeled by the algebra tiles? |
| |
|
 |
| |
|
A. |
3x2 - 2x - 1 |
B. |
-3x2 + 2x + 1 |
| |
|
C. |
-2x2 - 3x - 1 |
D. |
-2x2 + 3x + 1 |
| |
|
Hint |
|
| |
6. |
Find the product of x, x – 2, and x + 2. |
| |
|
A. |
x3 + 4x2 + 4x |
B. |
x3 + 4x |
| |
|
C. |
x3 - 4 |
D. |
x3 - 4x |
| |
|
Hint |
|
| |
7. |
The roots of the quadratic equation 2x2 + 4x – 30 = 0 are ___________. |
| |
|
A. |
3 and 5 |
B. |
–3 and 5 |
| |
|
C. |
–3 and –5 |
D. |
3 and –5 |
| |
|
Hint |
|
| |
8. |
A method that you can use to make any quadratic expression a perfect square is called ____________. |
| |
|
A. |
completing the term |
B. |
quadratic factorization |
| |
|
C. |
squaring the expression |
D. |
completing the square |
| |
|
Hint |
|
| |
9. |
Solve  . Identify the correct graph of the solution. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
10. |
Name the property of numbers shown by the statement:
23 · 0 = 0 · 23 = 0. |
| |
|
A. |
Additive Identity |
B. |
Multiplicative Property of Zero |
| |
|
C. |
Substitution Property |
D. |
Multiplicative Identity |
| |
|
Hint |
|
| |
11. |
Evaluate jkl if j = 2, k = -3, and l = -4. |
| |
|
A. |
9 |
B. |
24 |
| |
|
C. |
-9 |
D. |
-24 |
| |
|
Hint |
|
| |
12. |
Solve the equation  |
| |
|
A. |
19 |
B. |
10 |
| |
|
C. |
-3 |
D. |
5 |
| |
|
Hint |
|
| |
13. |
Solve -19 + |t| = 12 |
| |
|
A. |
31 |
B. |
-7 |
| |
|
C. |
no solution |
D. |
-31 or 31 |
| |
|
Hint |
|
| |
14. |
Mindy's hamster, Fluffy, just had babies. Her dad tells her she can keep 15% of the baby hamsters. If Fluffy had 20 baby hamsters, how many of them can Mindy keep? |
| |
|
A. |
5 hamsters |
B. |
15 hamsters |
| |
|
C. |
133 hamsters |
D. |
3 hamsters |
| |
|
Hint |
|
| |
15. |
Which is the graph of y = 2x + 2? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
16. |
Which equation is parallel to the graph of y = 2x +  and passes through the point (4, 7)? |
| |
|
A. |
y = 2x – 1 |
B. |
y = - x + |
| |
|
C. |
y = 2x + 3 |
D. |
y = x + |
| |
|
Hint |
|
| |
17. |
Find the volume of the box. |
| |
|
 |
| |
|
A. |
(7a – b) units3 |
| |
|
B. |
(-8a3 – 18a2b + 23ab2 + 15b3) units3 |
| |
|
C. |
(8a3 + 18a2b – 23ab2 – 15b3) units3 |
| |
|
D. |
(-7a + b) units3 |
| |
|
Hint |
|
| |
18. |
Factor the trinomial x2 + 7x – 8. |
| |
|
A. |
(x – 4)(x + 2) |
B. |
(x + 8)(x – 1) |
| |
|
C. |
(x – 8)(x + 1) |
D. |
(x + 4)(x – 2) |
| |
|
Hint |
|
| |
19. |
Rob is shopping at his favorite health food store. He does not want to spend more than $25.00 there. Write an inequality to represent this situation. |
| |
|
A. |
s  25 |
B. |
s < 25 |
| |
|
C. |
s > 25 |
D. |
s  25 |
| |
|
Hint |
|
| |
20. |
Solve 2x- 4 < 12. |
| |
|
A. |
x < 8 |
B. |
x > 8 |
| |
|
C. |
x < 4 |
D. |
x > 4 |
| |
|
Hint |
|
|
|