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1. |
Solve 3 < 2t - 1 < 15. |
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A. |
{t | 3 < t < 8} |
B. |
{t | 2 < t < 16} |
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C. |
{t | 4 < t < 16} |
D. |
{t | 2 < t < 8} |
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Hint |
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2. |
State which ordered pair satisfies  |
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A. |
(0, 1) |
B. |
(1, 2) |
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C. |
(0, 0) |
D. |
(1, 5) |
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Hint |
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3. |
What is the first step in solving the system of equations using the elimination method? 
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A. |
Add the equations. |
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B. |
Subtract the second equation from the first equation. |
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C. |
Multiply the second equation by 2. |
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D. |
Solve the first equation for x. |
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Hint |
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4. |
Use Cramer's rule to solve the system of equations. 
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A. |
(0.011, 0.0055) |
B. |
(0.2, 0.4) |
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C. |
(-0.4, -0.2) |
D. |
(0.4, 0.2) |
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Hint |
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5. |
Solve the system of inequalities by graphing. 
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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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6. |
Simplify  |
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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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7. |
Express  using exponents. |
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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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8. |
Simplify  |
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A. |
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B. |
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D. |
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Hint |
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9. |
Which is the graph of the inequality y < x2 -2x - 8? |
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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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10. |
Find the coordinates of the foci of a hyperbola with equation  |
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B. |
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Hint |
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11. |
Find f(-2) for f(x) = 2x4 - x3 + 5x + 1. |
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A. |
31 |
B. |
-57 |
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C. |
-21 |
D. |
-29 |
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Hint |
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12. |
Identify the multiplicative inverse of 2.5. |
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A. |
0.4 |
B. |
0.5 |
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C. |
0.25 |
D. |
5.2 |
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Hint |
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13. |
Solve the inequality | 5x + 2 |  12. |
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A. |
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B. |
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D. |
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Hint |
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14. |
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. |
Yes, the relation contains very few ordered pairs. |
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C. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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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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15. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
(-3, 1, 7) |
B. |
no solution |
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C. |
infinite solutions |
D. |
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Hint |
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16. |
If  and  find 4A – 5B. |
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B. |
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D. |
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Hint |
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17. |
Which of the following cannot be true concerning Cramer's Rule for two variables? |
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B. |
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D. |
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Hint |
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18. |
Graph  . Then estimate the coordinates at which the relative maxima and relative minima occur. |
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A. |
minimum: –3,maximum: 1 |
B. |
minimum: –5,maximum: 1 |
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C. |
minimum: 1,maximum: –5 |
D. |
minimum: 1, maximum: –3 |
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Hint |
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19. |
If a binomial x – a divides a polynomial, what must be true in order for it to be a factor of the polynomial? |
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A. |
The polynomial must be at least of degree three. |
B. |
The remainder must be 0. |
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C. |
There cannot be any other factor x – a. |
D. |
It must divide the polynomial in half. |
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Hint |
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20. |
What is the inverse of the relation (3, -1), (2, 5), (-4, -4)? |
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A. |
(-1, 3), (5, 2), (4, 4) |
B. |
(-3, -1), (-2, 5), (4, -4) |
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C. |
(1, -3), (-5, -2), (4, 4) |
D. |
(-1, 3), (5, 2), (-4, -4) |
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Hint |
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