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1. |
Evaluate  if t = 8, u = -2, and v = 5. |
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A. |
0.56 |
B. |
0.2 |
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C. |
0.08 |
D. |
2.8 |
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Hint |
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2. |
Simplify 3(2a + b) + 6(a - 2b). |
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A. |
12a + b |
B. |
12a + 9b |
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C. |
12a - 9b |
D. |
12a + 15b |
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Hint |
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3. |
The formula for the area of a trapezoid is  Solve the formula for h. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Which is the standard form of a linear equation? |
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A. |
 |
B. |
y = 2x - 3 |
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C. |
3x2 + y = 5 |
D. |
4x - 9y = 1 |
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Hint |
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5. |
If g(x) = |x + 3|, find g(-7). |
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A. |
-7 |
B. |
10 |
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C. |
4 |
D. |
-4 |
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Hint |
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6. |
State which ordered pair satisfies  |
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A. |
(1, 2) |
B. |
(0, 0) |
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C. |
(0, 1) |
D. |
(1, 5) |
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Hint |
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7. |
The system of equations on the graph shown is |
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A. |
consistent and independent. |
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B. |
inconsistent. |
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C. |
consistent. |
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D. |
consistent and dependent. |
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Hint |
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8. |
Does the inverse of  exist? If it does not exist, explain why not. |
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A. |
No; the elements of the principal diagonal are not 1. |
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B. |
No; the determinant equals 0. |
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C. |
No; the matrix is not square. |
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D. |
Yes |
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Hint |
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9. |
The formula for the perimeter of a rectangle is  , where  is the length of the rectangle and w is the width. If a rectangle is 17 ft long and 8 ft wide, what is its perimeter? |
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A. |
42 ft |
B. |
68 ft |
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C. |
50 ft |
D. |
25 ft |
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Hint |
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10. |
Evaluate  if a = 2, b = 4, and c = -1. |
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A. |
7 |
B. |
-14 |
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C. |
2.4 |
D. |
1 |
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Hint |
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11. |
Name the property illustrated by the equation 5 ·? (-2 – 7) = 5 ·? -2 – 5 ·? 7. |
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A. |
Inverse Property |
B. |
Associative Property |
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C. |
Commutative Property |
D. |
Distributive Property |
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Hint |
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12. |
If  what is the value of  |
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A. |
 |
B. |
27 |
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C. |
89 |
D. |
29 |
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Hint |
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13. |
Solve x + 7 > 13. |
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A. |
{x | x < 13} |
B. |
{x | x > 6} |
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C. |
{x | x  20} |
D. |
{x | x > 20} |
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Hint |
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14. |
Graph the line through (2, 3) that is parallel to the line with equation 3x – y = 2. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Solve the system of equations 3x – 5y = 4
–2x + 4y = 3. |
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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. |
Which of the following is always true about inequalities whose graphs do not overlap? |
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A. |
Each slope is negative. |
B. |
Their slopes are equal. |
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C. |
Their slopes are opposite reciprocals. |
D. |
Each slope is positive. |
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Hint |
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17. |
At a firm, there are three workers that are supposed to work a combined 110 hours per week. Worker 1 gets paid $10 per hour, worker 2 gets paid $12 per hour, and worker 3 gets paid $14 per hour. If the company wants their total income to be $1268, how many hours should each one work if worker 3 and worker 2 work for the same amount of hours? |
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A. |
worker 1: 14worker 2: 48worker 3: 48 |
B. |
worker 1: 40worker 2: 35worker 3: 35 |
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C. |
worker 1: 44worker 2: 33worker 3: 33 |
D. |
worker 1: 54worker 2: 28worker 3: 28 |
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Hint |
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18. |
Solve  |
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A. |
(–1, 2) |
B. |
(2, –1) |
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C. |
(1, –2) |
D. |
(–2, 1) |
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Hint |
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19. |
Which method of finding solutions would work best to find the solutions to the system 12.4x – 3.66y = 12.19, 3.9x + 6.17y = 19.28, and why? |
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A. |
Cramer's Rule, because there are fewer calculations. |
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B. |
elimination, because Cramer's Rule doesn't apply to this problem |
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C. |
Cramer's Rule, because none of the other methods will correctly solve the problem |
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D. |
elimination, because 6.17 is a factor of 3.66 |
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Hint |
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20. |
Determine whether the pair of matrices  are inverses. |
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A. |
yes, because each entry in the second matrix is the reciprocal of its corresponding entry in the first matrix |
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B. |
yes, because A · B = I |
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C. |
no, because fractions cannot be a part of an inverse |
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D. |
no, because A · B  I |
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Hint |
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