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1. |
Name the property illustrated by (3c · 6)2 = 3c(6 · 2). |
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A. |
commutative property of addition |
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B. |
associative property of addition |
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C. |
commutative property of multiplication |
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D. |
associative property of multiplication |
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Hint |
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2. |
Name the multiplicative inverse of 5. |
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A. |
-5 |
B. |
0.2 |
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C. |
20 |
D. |
50 |
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Hint |
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3. |
Choose the relation that is a function. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Choose the graph of f(x) = |x| - 2. |
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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. |
What is the value of the determinant? |
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A. |
-12 |
B. |
12 |
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C. |
-8 |
D. |
-3 |
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Hint |
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6. |
Which is not a point at which a maximum or minimum value of a function could occur for the feasible region? |
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A. |
(1, 5) |
B. |
(-3, 0) |
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C. |
(0, 3) |
D. |
(-3, 6) |
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Hint |
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7. |
Find the value of 63. |
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A. |
36 |
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B. |
18 |
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C. |
216 |
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D. |
729 |
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Hint |
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8. |
Write the matrix equation  as a system of linear equations. |
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A. |
-2s = 7
5t = 12 |
B. |
-2s + 5t = 7
s + 8t = 12 |
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C. |
-2s + t = 12
5s + 8t = 7 |
D. |
-2s + t = 7
5s + 8t = 12 |
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Hint |
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9. |
Express 45,280,000 in scientific notation. |
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A. |
4.528 × 107 |
B. |
4.528 × 10-7 |
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C. |
45.28 × 106 |
D. |
4.528 × 106 |
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Hint |
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10. |
Simplify i17. |
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A. |
-i |
B. |
-1 |
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C. |
i |
D. |
1 |
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Hint |
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11. |
Simplify (7 - 2i)(7 + 2i). |
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A. |
45 |
B. |
49 |
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C. |
53 |
D. |
33 |
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Hint |
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12. |
Solve m2 - 2m = 15 by factoring. |
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A. |
5 |
B. |
3 |
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C. |
-5, 3 |
D. |
-3, 5 |
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Hint |
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13. |
Stan the Hot Dog Man sells 100 hot dogs per day for $2 each, so his daily revenue is $200. He estimates that for every 25 cents he increases the price of a hot dog, he will sell 5 fewer. What range of prices can he charge so that his daily revenue is at least $225? |
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A. |
$2.00-$4.00 |
B. |
$2.25-$2.50 |
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C. |
$2.50-$4.50 |
D. |
$3.00-$4.50 |
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Hint |
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14. |
Name the property of equality illustrated by the following statement. If n 3 = 5 + 4, then n 3 = 9. |
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A. |
Transitive |
B. |
Reflexive |
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C. |
Substitution |
D. |
Symmetric |
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Hint |
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15. |
Solve the system of equations. 2x + 3y = 7
4x 6y = 8. |
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A. |
y = 22, x = 36.5 |
B. |
y = 22, x = 31 |
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C. |
no solution |
D. |
y = 22, x = 29.5 |
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Hint |
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16. |
Which point is not in the solution set of  |
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A. |
(9, 1) |
B. |
(14, 3) |
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C. |
(6, 1) |
D. |
(1, 1) |
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Hint |
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17. |
Solve  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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18. |
Solve by graphing. |
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A. |
x = 0 |
B. |
x = 2 |
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C. |
x = 2 |
D. |
no real roots |
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Hint |
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19. |
Solve -x2 + 3x + 5 = 0 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. |
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A. |
between 2 and1, and between 3 and 4 |
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B. |
between 2 and -1, and between 4 and 5 |
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C. |
between 1 and 0, and between 4 and 5 |
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D. |
between 1 and 0, and between 3 and 4 |
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Hint |
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20. |
Solve x2 + 8x + 16 = 36 by using the Square Root Property. |
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A. |
-4 |
B. |
2 and 10 |
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C. |
-2 and 14 |
D. |
2 |
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Hint |
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