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1. |
Graph the solution set of  |
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A. |
 |
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B. |
 |
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C. |
 |
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D. |
 |
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Hint |
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2. |
Solve the system of equations by using substitution. 
|
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A. |
(4, 9) |
B. |
(5, 11) |
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C. |
(1, 3) |
D. |
(3, 7) |
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Hint |
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3. |
The solution of a system of three linear equations in three variables, x, y, and z, is called a(n) ____ (x, y, z). |
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A. |
ordered triple |
B. |
integer |
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C. |
ordered pair |
D. |
sum |
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Hint |
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4. |
Solve y2 + 8y + 16 = 0 by factoring. |
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A. |
-4 |
B. |
4, 8 |
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C. |
4 |
D. |
-4, 4 |
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Hint |
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5. |
The enrollments at the University of Texas at Austin in some recent years were 47,905, 48,008, 48,857, 48,906, and 49,009. Find the standard deviation of the data. |
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A. |
477.62 |
B. |
434.00 |
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C. |
452.93 |
D. |
461.28 |
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Hint |
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6. |
Solve logb 36 = 2 |
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A. |
6 |
B. |
-6 |
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C. |
18 |
D. |
-6, 6 |
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Hint |
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7. |
Find a9 for the geometric sequence  . |
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A. |
16 |
B. |
8 |
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C. |
1 |
D. |
4 |
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Hint |
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8. |
How many lines are determined by 7 points, no three of which are collinear? |
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A. |
105 |
B. |
21 |
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C. |
200 |
D. |
42 |
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Hint |
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9. |
What is the probability of selecting 3 vowels at random from the word mathematics? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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10. |
Find the probability of rolling two number cubes and getting a 2 on one number cube and a 6 on the other? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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11. |
In 1992, 92% of the people surveyed felt that professional athletes were overpaid. If the margin of error for the sampling was 3%, how many people were surveyed? |
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A. |
225 |
B. |
736 |
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C. |
327 |
D. |
2944 |
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Hint |
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12. |
If  what is the value of  |
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A. |
89 |
B. |
29 |
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C. |
 |
D. |
27 |
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Hint |
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13. |
Is the relation shown in the graph a function? Why or why not? |
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A. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
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B. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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C. |
Yes, the relation contains very few ordered pairs. |
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D. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
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Hint |
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14. |
Which is true for the following system of equations?
3x -  y = 1
x + 2y = 7. |
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A. |
y < x |
B. |
cannot be determined from information given |
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C. |
y = x |
D. |
y > x |
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Hint |
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15. |
Find A – B if  and  |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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16. |
Find  |
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A. |
q – 9 |
B. |
 |
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C. |
q + 9 |
D. |
 |
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Hint |
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17. |
 |
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A. |
36 |
B. |
72 |
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C. |
 |
D. |
6 |
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Hint |
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18. |
Which of the following points will be included in the graph of  |
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A. |
(8, 3) |
B. |
(11, 5) |
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C. |
(4, 1) |
D. |
(2, 1) |
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Hint |
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19. |
What is the 21st iterate of the function  if x0 = 3. |
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A. |
–19 |
B. |
–1 |
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C. |
–3 |
D. |
3 |
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Hint |
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20. |
Mathematical induction proves statements about which of the following? |
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A. |
positive integers |
B. |
all integers |
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C. |
all positive real numbers |
D. |
all real numbers |
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Hint |
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