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1. |
Solve 18 + a = 36. |
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A. |
-18 |
B. |
54 |
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C. |
18 |
D. |
-2 |
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Hint |
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2. |
Solve 3 < 2t - 1 < 15. |
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A. |
{t | 4 < t < 16} |
B. |
{t | 2 < t < 16} |
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C. |
{t | 3 < t < 8} |
D. |
{t | 2 < t < 8} |
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Hint |
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3. |
Solve  |
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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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4. |
Graph the solution set of |3y + 9| > 12. |
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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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5. |
Write in standard form where A, B, and C are integers whose greatest common factor is 1. |
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A. |
3x - 8y = 16 |
B. |
 |
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C. |
3x - 8y = 2 |
D. |
3x + 8y = 16 |
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Hint |
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6. |
A best-fit line drawn on a scatter plot ________ |
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A. |
always has a positive slope. |
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B. |
is a line that goes through every data point. |
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C. |
approximates the linear relationship of data points. |
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D. |
must be drawn through the first and last data points. |
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Hint |
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7. |
If f(x) = [2x - 1], find f(5.4). |
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A. |
9 |
B. |
9.8 |
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C. |
10 |
D. |
8 |
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Hint |
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8. |
If g(x) = |x + 3|, find g(-7). |
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A. |
10 |
B. |
4 |
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C. |
-7 |
D. |
-4 |
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Hint |
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9. |
What is true about the system and  |
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A. |
The system has infinitely many solutions. |
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B. |
The system is consistent and dependent. |
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C. |
The system is inconsistent. |
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D. |
The system is consistent and independent. |
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Hint |
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10. |
Use the substitution method to solve m - n = 7 and 3m + 2n = 6. |
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A. |
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B. |
(-5, 2) |
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C. |
(4, -3) |
D. |
(-3, -10) |
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Hint |
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11. |
A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y? |
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A. |
f(3, 1) |
B. |
f(4, 6) |
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C. |
f(2, -2) |
D. |
f(-2, 3) |
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Hint |
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12. |
Find the value of 63. |
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A. |
18 |
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B. |
216 |
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C. |
36 |
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D. |
729 |
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Hint |
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13. |
Solve the system of equations. 


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A. |
no solution |
B. |
(0, -2, 7) |
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C. |
(1, 1, 2) |
D. |
infinite number of solutions |
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Hint |
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14. |
Find [6,3,-1]. |
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A. |
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B. |
[3 3 -1] |
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C. |
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D. |
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Hint |
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15. |
 |
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A. |
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B. |
[10 37] |
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C. |
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D. |
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Hint |
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16. |
Solve x + 7 > 13. |
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A. |
{x | x 20} |
B. |
{x | x > 6} |
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C. |
{x | x < 13} |
D. |
{x | x > 20} |
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Hint |
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17. |
Solve the inequality | f | > 4. |
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A. |
{f | f > -4 or f < 4} |
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B. |
{f | -4 < f < 4} |
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C. |
{f | -4 > f > 4} |
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D. |
{f | f < -4 or f > 4} |
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Hint |
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18. |
Write an equation in slope-intercept form for the line that has a slope of 2 and passes through (-4, -6). |
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A. |
y = 2x - 2 |
B. |
y = 2x + 8 |
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C. |
y = 2x + 2 |
D. |
y = 2x - 8 |
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Hint |
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19. |
What are the solutions to the system y + 2x – 5z = 4, –2y – 4x + 10z = 8, 3y + x – 3z = 5? |
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A. |
infinite |
B. |
(2, 2, –2) |
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C. |
no solution |
D. |
(2, 2, 1) |
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Hint |
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20. |
Solve the system of equations 7x – 14y =4, 3x – 6y =17. |
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A. |
(3, –2) |
B. |
no unique solution |
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C. |
(2, 1) |
D. |
infinite solutions |
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Hint |
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