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1. |
Which sentence is NOT a true sentence? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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2. |
The sum of two negative rational numbers is _______. |
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A. |
zero |
B. |
one |
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C. |
positive |
D. |
negative |
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Hint |
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3. |
Ten students were comparing their weekly allowances. The allowances were $4.50, $7.00, $5.00, $10.00, $5.00, $12.50, $8.50, $17.50, $20.00, and $12.00. What is the mean of this set of data? |
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A. |
$5.00 |
B. |
$10.20 |
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C. |
$102.00 |
D. |
$9.25 |
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Hint |
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4. |
The heights, in feet, of the eight highest waterfalls in the world are 3281, 3000, 2000, 1904, 1650, 1612, 1430, and 1384. Find the range of this data set. |
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A. |
1897 |
B. |
948.5 |
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C. |
2033 |
D. |
1777 |
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Hint |
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5. |
Choose the solution of 3x + 7 = 10 if the replacement set is {-1, 0, 1, 2}. |
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A. |
1 |
B. |
-1 |
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C. |
2 |
D. |
0 |
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Hint |
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6. |
Which equation does the model represent? |
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A. |
x + (-5) = -1 |
B. |
x + 5 = -1 |
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C. |
x + 5 = 1 |
D. |
x + (-5) = 1 |
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Hint |
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7. |
In 1960, Chile experienced the largest earthquake of the century. The magnitude was 9.5 on the Richter scale. In 1952, Ecuador had the fourth largest earthquake. The magnitude was 0.7 less than the earthquake in Chile. What was the magnitude of the earthquake in Ecuador? |
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A. |
7.8 |
B. |
8.8 |
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C. |
11.2 |
D. |
10.2 |
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Hint |
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8. |
A solution set that has no members is called the _______. |
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A. |
empty set |
B. |
replacement set |
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C. |
zero set |
D. |
variable set |
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Hint |
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9. |
Write , , and in order from least to greatest. |
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A. |
, ,  |
B. |
, ,  |
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C. |
, ,  |
D. |
, ,  |
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Hint |
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10. |
Find 4.5 + (-2.9) + 3.2. |
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A. |
4.8 |
B. |
-10.6 |
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C. |
10.6 |
D. |
-4.8 |
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Hint |
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11. |
Choose the solution of 8 – = 6 if the replacement set is {2, 4, 6, 8}. |
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A. |
8 |
B. |
4 |
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C. |
2 |
D. |
6 |
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Hint |
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12. |
Which equation does the model represent? |
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 |
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A. |
x + 7 = -4 |
B. |
x + (-4) = 7 |
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C. |
x + 4 = -7 |
D. |
x + (-7) = 4 |
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Hint |
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13. |
Solve the equation g + 14 = -23. |
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A. |
37 |
B. |
-37 |
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C. |
-9 |
D. |
9 |
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Hint |
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14. |
Solve |c + 3| – 4 = -2 |
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A. |
no solution |
B. |
1 or 5 |
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C. |
-1 or -5 |
D. |
-1 or 5 |
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Hint |
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