| |
| |
1. |
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.'' |
| |
|
A. |
6 + 3x |
B. |
6(3x)2 |
| |
|
C. |
6(3x) |
D. |
6 + 3x2 |
| |
|
Hint |
|
| |
2. |
State the number of solutions to the system of equations graphed below. |
| |
|
 |
| |
|
A. |
1 |
B. |
infinitely many |
| |
|
C. |
0 |
D. |
2 |
| |
|
Hint |
|
| |
3. |
Use the elimination method to solve the system of equations. 
|
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
4. |
Find the determinant of  |
| |
|
A. |
-21 |
B. |
-11 |
| |
|
C. |
-16 |
D. |
0 |
| |
|
Hint |
|
| |
5. |
Simplify  |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
2i |
| |
|
Hint |
|
| |
6. |
Find the coordinates of the center of an ellipse with equation
9x2 + 4y2 - 72x + 16y + 124 = 0. |
| |
|
A. |
(2, 3) |
B. |
(4, 9) |
| |
|
C. |
(4, 2) |
D. |
(4, -2) |
| |
|
Hint |
|
| |
7. |
Which function has a graph that opens upward? |
| |
|
A. |
f(x) = -5x2 -6x -3 |
B. |
f(x) = -x2 + 3x -12 |
| |
|
C. |
f(x) = -x2 + 4x + 7 |
D. |
f(x) = 2x2 - 5x - 2 |
| |
|
Hint |
|
| |
8. |
Which is the graph of the inequality y < x2 -2x - 8? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
9. |
Find log 136.8 to four decimal places. |
| |
|
A. |
2.1106 |
B. |
2.1361 |
| |
|
C. |
2.0502 |
D. |
2.1418 |
| |
|
Hint |
|
| |
10. |
Find three geometric means between 3 and 48. Then select the graph that uses the x-axis for the number of the term and the y-axis for the term itself. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
11. |
Find the length of side a to the nearest tenth. |
| |
|
 |
| |
|
A. |
11.8 |
B. |
8.7 |
| |
|
C. |
6.1 |
D. |
10.9 |
| |
|
Hint |
|
| |
12. |
Name the property of equality illustrated by the following statement. If n – 3 = 5 + 4, then n – 3 = 9. |
| |
|
A. |
Transitive |
B. |
Substitution |
| |
|
C. |
Symmetric |
D. |
Reflexive |
| |
|
Hint |
|
| |
13. |
Solve the inequality | f | > 4. |
| |
|
A. |
{f | f < -4 or f > 4} |
| |
|
B. |
{f | f > -4 or f < 4} |
| |
|
C. |
{f | -4 > f > 4} |
| |
|
D. |
{f | -4 < f < 4} |
| |
|
Hint |
|
| |
14. |
Which of the following is always true about inequalities whose graphs do not overlap? |
| |
|
A. |
Their slopes are opposite reciprocals. |
B. |
Their slopes are equal. |
| |
|
C. |
Each slope is negative. |
D. |
Each slope is positive. |
| |
|
Hint |
|
| |
15. |
In the inequality  what must q be greater than or equal to? |
| |
|
A. |
9 |
B. |
5 |
| |
|
C. |
21 |
D. |
0 |
| |
|
Hint |
|
| |
16. |
The graph of  has a hole at which point? |
| |
|
A. |
(4, 8) |
B. |
(-4, -8) |
| |
|
C. |
(4, -8) |
D. |
(-4, 8) |
| |
|
Hint |
|
| |
17. |
What type of function is y = 2? |
| |
|
A. |
rational |
B. |
direct variation |
| |
|
C. |
constant |
D. |
absolute value |
| |
|
Hint |
|
| |
18. |
Suppose black coffee has a pH of 5 and milk of magnesia has a pH of 10. How many times more hydrogen ions are in black coffee than in milk of magnesia? (pH = –log[H+], where H+ is the substance's hydrogen ion concentration in moles per liter) |
| |
|
A. |
100 times |
B. |
2 times |
| |
|
C. |
5 times |
D. |
100,000 times |
| |
|
Hint |
|
| |
19. |
Which of the following is not always a step in mathematical induction? |
| |
|
A. |
Add (k + 1)2 to each side. |
B. |
Prove true for n + 1. |
| |
|
C. |
Prove true for some integer n. |
D. |
Assume true for a positive integer k. |
| |
|
Hint |
|
| |
20. |
According to NFL statistics, the Cincinnati Bengals will be blown out in 5 out of 16 games, regardless of opponent. What are the odds of Cincinnati playing a close game? |
| |
|
A. |
16:5 |
B. |
5:11 |
| |
|
C. |
11:16 |
D. |
11:5 |
| |
|
Hint |
|
|
|