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1. |
Solve 23 - x = 142. |
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A. |
x = -165 |
B. |
x = -119 |
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C. |
x = 165 |
D. |
x = 119 |
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Hint |
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2. |
State the domain of the relation {(1, 6), (-2, 3), (5, 7), (5, 9)}. |
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A. |
{-2, 1} |
B. |
{3, 6, 7, 9} |
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C. |
{-2, 1, 5} |
D. |
{5} |
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Hint |
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3. |
Simplify (4x2y) (2xy2z3)3. |
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A. |
8x5y7z9 |
B. |
32x5y7z9 |
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C. |
32x6y6z9 |
D. |
24x5y7z9 |
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Hint |
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4. |
Factor 54x3y2 |
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A. |
23 · 3 · x · x · x · y · y |
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B. |
2 · 33 · x · x · x · y · y |
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C. |
2 · 33 · x · x · y · y · y |
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D. |
2 · 27 · x · x · x · y · y |
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Hint |
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5. |
Factor 3y2 + 7y + 4. |
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A. |
(3y + 1)(y + 7) |
B. |
(3y + 1)(y + 4) |
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C. |
(3y + 4)(y + 1) |
D. |
(3y + 2)(y + 2) |
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Hint |
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6. |
Factor 4y2 – 9. |
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A. |
(2y + 3)(2y + 3) |
B. |
(2y – 3)(2y – 3) |
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C. |
prime |
D. |
(2y + 3)(2y – 3) |
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Hint |
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7. |
Solve a2 – 12a = -27. |
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A. |
a = -27 or a = -15 |
B. |
a = 3 |
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C. |
a = 3 or a = 9 |
D. |
a = 9 |
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Hint |
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8. |
Solve 3x2 + 5 = 8x. |
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A. |
x = 5 or x = 1 |
B. |
x = 0 |
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C. |
 or x = 1 |
D. |
x = 1 |
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Hint |
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9. |
Find the equation of the axis of symmetry of the graph of
y = 2x2 - 8x + 5. |
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A. |
x = 2 |
B. |
x = -2 |
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C. |
x = -4 |
D. |
x = 4 |
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Hint |
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10. |
Simplify  . |
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A. |
 |
B. |
 |
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C. |
5x |
D. |
2x |
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Hint |
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11. |
Simplify 3x2 + 11x + 2x2. |
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A. |
5x2 + 11x |
B. |
16x2 |
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C. |
6x2 + 11x |
D. |
simplified |
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Hint |
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12. |
A blueprint of an office building has a scale of  inch = 2 feet. What are the dimensions of a storage closet that measures 3 inches by  inches on the blueprint? |
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A. |
8 feet by 12 feet |
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B. |
 feet by 10 feet |
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C. |
 feet by 4 feet |
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D. |
6 feet by 9 feet |
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Hint |
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13. |
Solve y = 7x – 7 if the domain is {-2, -1, 0, 1}. |
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A. |
{-28, -14, 14, 28} |
B. |
{7, 14, 21, 28} |
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C. |
{-19, -13, -7, -1} |
D. |
{-21, -14, -7, 0} |
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Hint |
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14. |
Solve  |
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A. |
{4, 38} |
B. |
{-38, 4} |
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C. |
{-38, -4} |
D. |
{-4, 38} |
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Hint |
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15. |
Use elimination to solve the system of equations given by 6x + 2y = 0 and 3x + 7y = 24. |
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A. |
infinitely many solutions |
B. |
(-1, 3) |
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C. |
 |
D. |
no solution |
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Hint |
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16. |
Which table contains data whose distribution would be skewed right? |
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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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17. |
Find the lower quartile of the data. |
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A. |
19.5 |
B. |
42.5 |
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C. |
29.5 |
D. |
2 |
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Hint |
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18. |
A cafeteria has two meal plans. One requires the worker to pay $20 for the card, and $1 each time x she uses it. The other plan requires the worker to pay $30 for the card, but only $0.50 each time x she uses it. After how many uses will the workers with different plans have spent the same amount of money? |
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A. |
10 uses |
B. |
5 uses |
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C. |
20 uses |
D. |
It will never happen. |
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Hint |
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19. |
Which of the following is not a condition of a radical expression in simplest form? |
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A. |
No radicals appear in the denominator of a fraction. |
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B. |
No radicals appear in the numerator of a fraction. |
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C. |
No radicands contain fractions. |
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D. |
No radicands have perfect square factors other than 1. |
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Hint |
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20. |
Solve  . |
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A. |
125 |
B. |
445 |
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C. |
15 |
D. |
25 |
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Hint |
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