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1. |
Name the sets of numbers to which the value of -16 ÷ 50 belongs. |
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A. |
reals (R), rationals (Q), integers (Z), whole numbers (W) |
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B. |
reals (R), irrationals (I) |
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C. |
reals (R), rationals (Q) |
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D. |
reals (R), rationals (Q), integers (Z) |
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Hint |
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2. |
Solve |t - 16| = 20. |
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A. |
{4, -36} |
B. |
{4, 36} |
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C. |
{-4, -36} |
D. |
{-4, 36} |
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Hint |
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3. |
Which equation has a graph that is parallel to the graph of 4x - 2y = 1? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
y = 2x - 3 |
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Hint |
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4. |
Choose the graph that shows the solution to the system of inequalities 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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5. |
Find the minimum value of f(x, y) = 4x - 2y for the polygonal region determined by the feasible region. |
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A. |
-28 |
B. |
27 |
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C. |
14 |
D. |
-14 |
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Hint |
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6. |
A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn? |
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A. |
$1.80 |
B. |
$4.80 |
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C. |
$3.30 |
D. |
$4.55 |
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Hint |
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7. |
Evaluate using expansion by minors. |
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A. |
80 |
B. |
14 |
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C. |
68 |
D. |
64 |
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Hint |
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8. |
Express 0.091 in scientific notation. |
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A. |
9.1 × 101 |
B. |
9.1 × 102 |
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C. |
9.1 × 10-2 |
D. |
9.1 × 10-1 |
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Hint |
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9. |
Use synthetic division to find  |
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A. |
2d3 - d2 + 2d - 4 + 5 |
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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. |
Express using exponents. |
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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. |
Solve  |
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A. |
5 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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12. |
Name the sets of numbers to which belongs. |
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A. |
Irrationals and Reals |
B. |
Naturals, Wholes, Integers, Rationals, and Reals |
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C. |
Rationals and Reals |
D. |
Integers, Rationals, and Reals |
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Hint |
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13. |
Graph the line passing through the point (2, -5) with a slope of –2. |
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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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14. |
Find the slope of the line below. |
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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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15. |
What is the slope of the line with equation  |
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A. |
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B. |
7 |
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C. |
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D. |
-7 |
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Hint |
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16. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
no solution |
B. |
(-3, 1, 7) |
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C. |
infinite solutions |
D. |
 |
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Hint |
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17. |
Find the product 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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18. |
Which of the following is the correct rotation matrix for a rotation of 180°counterclockwise about the origin? |
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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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19. |
Two sides of an angle are contained in lines whose equations are 6x + 4y = 15 and 7x – 9y = 3. Find the coordinates of the vertex of the angle. Round to the nearest hundredth. |
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A. |
(–147, –87) |
B. |
(–1.79, 1.06) |
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C. |
(147, 87) |
D. |
(1.79, 1.06) |
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Hint |
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20. |
Factor 4x2 – 49. |
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A. |
 |
B. |
 |
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C. |
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D. |
(2x + 7)(2x – 7) |
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Hint |
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