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1. |
The temperature f(x) of water in a lake in degrees Fahrenheit is estimated by the function shown below, where x is the depth in feet of the water. What would be the temperature of water 30 feet below the surface? |
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A. |
71.25°F |
B. |
111°F |
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C. |
33°F |
D. |
63°F |
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Hint |
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2. |
Express 45,280,000 in scientific notation. |
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A. |
4.528 × 10-7 |
B. |
4.528 × 106 |
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C. |
45.28 × 106 |
D. |
4.528 × 107 |
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Hint |
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3. |
Simplify  |
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A. |
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B. |
5t3u3v4 |
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C. |
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D. |
 |
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Hint |
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4. |
Find the difference -18 - 4. |
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A. |
22 |
B. |
-22 |
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C. |
-14 |
D. |
14 |
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Hint |
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5. |
Find the difference |-25| - (-32). |
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A. |
7 |
B. |
57 |
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C. |
-57 |
D. |
-7 |
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Hint |
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6. |
Evaluate m - 3.5 if m = -2.1. |
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A. |
5.6 |
B. |
1.4 |
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C. |
-5.6 |
D. |
-1.4 |
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Hint |
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7. |
Solve |
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A. |
a = 19 |
B. |
a = 5 |
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C. |
a = -6 |
D. |
a = 29 |
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Hint |
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8. |
Find the range of {5, 21, 2, 14, 13}. |
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A. |
19 |
B. |
13 |
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C. |
65 |
D. |
14 |
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Hint |
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9. |
Find  |
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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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10. |
Simplify the expression 8 (a + 2b) – 7b + 6 (3a – b). |
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A. |
26a + 3b |
B. |
152a – 88b |
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C. |
4a – 6b |
D. |
26a – 6b |
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Hint |
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11. |
Solve 6z > 39. |
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A. |
{z | z < 234} |
B. |
{z | z > 234} |
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C. |
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D. |
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Hint |
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12. |
Is the relation shown in the graph a function? Why or why not? |
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A. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
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B. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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C. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
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D. |
Yes, the relation contains very few ordered pairs. |
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Hint |
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13. |
Which is the graph of -4 and  |
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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. |
is a real number and and is a real number and x<3}. Which is the graph 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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15. |
is a real number and and is a real number and Which is the graph 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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16. |
What is the value of cell B2? |
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A. |
21 |
B. |
27 |
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C. |
12 |
D. |
5 |
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Hint |
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17. |
What is the value of cell D4? |
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A. |
540 |
B. |
1620 |
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C. |
1840 |
D. |
15 |
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Hint |
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18. |
If a = –5 and b = 7, what is  |
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A. |
–76 |
B. |
145 |
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C. |
–174 |
D. |
–114 |
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Hint |
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19. |
Simplify  |
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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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20. |
Graph the solution set 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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