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1. |
Express 0.0000421 in scientific notation. |
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A. |
4.21 × 10-6 |
B. |
4.21 × 10-9 |
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C. |
4.21 × 10-4 |
D. |
4.21 × 10-5 |
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Hint |
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2. |
Determine the slope of the line graphed below. |
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A. |
0 |
B. |
 |
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C. |
 |
D. |
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Hint |
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3. |
Select the segment that has been bisected. |
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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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4. |
Use the scatter plot to predict the mileage of an engine with 250 horsepower. |
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A. |
10 |
B. |
20 |
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C. |
12 |
D. |
25 |
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Hint |
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5. |
Evaluate (3.2 × 10-5)(5.4 × 109). Express the result in scientific notation. |
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A. |
0.1728 × 106 |
B. |
1.728 × 105 |
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C. |
17.28 × 104 |
D. |
1.728 × 103 |
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Hint |
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6. |
The graph of y = -4x2 - 1 is _____. |
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A. |
a circle |
B. |
None of these is correct. |
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C. |
a straight line |
D. |
a parabola |
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Hint |
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7. |
The vertices of are A(2, -1), B(0, -3), and C(4, -2). Find the vertices of the triangle after a translation 2 units right and 3 units down. |
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A. |
A'(0, 2), B'(-2, 0), C'(2, 1) |
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B. |
A'(4, 2), B'(2, 0), C'(6, 1) |
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C. |
A'(4, -4), B'(2, -6), C'(6, -5) |
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D. |
A'(-1, 1), B'(-3, -1), C'(1, 0) |
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Hint |
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8. |
Simplify . |
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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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9. |
Find the situation that involves a decreasing linear relationship and has direct variation. |
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A. |
The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours. |
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B. |
A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second. |
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C. |
A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second. |
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D. |
An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport. |
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Hint |
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10. |
How many diagonals does a 25-sided polygon have? |
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A. |
275 |
B. |
550 |
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C. |
25 |
D. |
300 |
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Hint |
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11. |
What is the reciprocal of –20? Evaluate it in decimal form. |
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A. |
–0.50 |
B. |
–0.02 |
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C. |
–0.05 |
D. |
–0.20 |
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Hint |
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12. |
What is true of the second differences for the equation x2 – 6x + 12? |
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A. |
they decrease by 1 |
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B. |
they are constant |
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C. |
they increase by 12 |
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D. |
they increase by 1 |
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Hint |
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13. |
Consider the following conjecture. If an even number is written 2k, where k is a whole number, then 2k + 1 must be an odd number. What can be your next course of action in dealing with this conjecture? |
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A. |
test every possible case to prove the conjecture |
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B. |
find a counterexample to disprove the conjecture |
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C. |
develop an argument to prove the conjecture |
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D. |
all answers are correct |
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Hint |
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14. |
How could you use the graph of h = 20t – 6t2 to estimate the solution(s) of 20t – 6t2 = 7, where h stands for height and t stands for time? |
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A. |
Draw a vertical line at t = 7 and find where it intersects the curve. |
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B. |
Draw a horizontal line at h = 20 and find where it intersects the curve. |
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C. |
Draw a horizontal line at h = 7 and find where it intersects the curve. |
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D. |
Draw a vertical line at t = 20 and find where it intersects the curve. |
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Hint |
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15. |
A ball is launched straight up from ground level modeling the equation h = 52t – 10t2, where h stands for height in meters and t stands for time. On its way up, it reached a particular height at 1 second. On its way down, it again reached the same height. At approximately what time did it reach that height the second time? |
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A. |
2.0 seconds |
B. |
5.2 seconds |
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C. |
3.5 seconds |
D. |
4.2 seconds |
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Hint |
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16. |
Toby needs to create a rectangular pen for his dog. He decides that the area of the pen will be 100 square feet with its length 2 feet longer than its width. As you find the width of the pen, which solution can be thrown away since the width cannot be negative? |
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A. |
–11.05 |
B. |
–9.05 |
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C. |
–12.32 |
D. |
–8.32 |
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Hint |
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17. |
What angle of rotation does the figure below have? |
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A. |
45° |
B. |
40° |
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C. |
35° |
D. |
30° |
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Hint |
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18. |
A figure has rotation symmetry of 8°. How many identical parts must there be? |
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A. |
40 |
B. |
70 |
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C. |
45 |
D. |
272 |
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Hint |
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19. |
Find the angle of rotation that is the same as 70°. |
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A. |
–290° |
B. |
–170° |
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C. |
170° |
D. |
–70° |
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Hint |
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20. |
Translate the figure using the given vector. |
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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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