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1. |
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds. |
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A. |
180.9 meters |
B. |
252.5 meters |
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C. |
130.4 meters |
D. |
221.6 meters |
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Hint |
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2. |
Simplify 2x2 + 5x2 + 7x. |
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A. |
14x2 |
B. |
2x2 + 12x |
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C. |
7x2 + 7x |
D. |
14x |
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Hint |
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3. |
Simplify the polynomial 4a2 + a2. |
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A. |
4a2 |
B. |
6a2 |
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C. |
4a2 + a |
D. |
5a2 |
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Hint |
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4. |
Add 3x2 + 2x - 1 and x2 - 3x + 5. |
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A. |
2x2 + 5x + 4 |
B. |
4x2 - x + 4 |
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C. |
4x2 + 5x - 4 |
D. |
2x2 - 5x - 6 |
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Hint |
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5. |
Find 53 · 57 |
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A. |
2510 |
B. |
54 |
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C. |
510 |
D. |
25-4 |
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Hint |
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6. |
Find x4(x2 - 3) |
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A. |
x6 - 3x2 |
B. |
x8 - 3x4 |
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C. |
x6 + 3x4 |
D. |
x6 - 3x4 |
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Hint |
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7. |
Which ordered pair is on the graph of y = – 5? |
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A. |
(4, 5) |
B. |
(-5, 7) |
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C. |
(-2, 3) |
D. |
(2, -3) |
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Hint |
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8. |
Add 2x2 + 6x + 3 and 5x2 + x + 7. |
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A. |
7x2 + 7x + 10 |
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B. |
7x2 + 5x + 10 |
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C. |
7x2 + 7x + 3 |
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D. |
7x4+ 7x2 + 10 |
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Hint |
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9. |
Find q4 · q9. |
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A. |
 |
B. |
 |
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C. |
2 |
D. |
 |
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Hint |
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10. |
Find x5 (x4 + 6x3). |
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A. |
x9 + 6x3 |
B. |
x20 + 6x3 |
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C. |
x20 + 6x15 |
D. |
x9 + 6x8 |
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Hint |
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11. |
Which graph represents a nonlinear function? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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12. |
Which table represents a linear function? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
If the perimeter of the triangle is (5x + 2) feet, find the measure of the third side. |
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A. |
(6x + 1) ft |
B. |
(2x + 3) ft |
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C. |
(2x + 1) ft |
D. |
(6x + 3) ft |
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Hint |
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14. |
Kelly and Dina are running in a marathon. After t minutes, Kelly has run 7t2 - 6t feet and Dina has run 4t2 + 3t feet. How far ahead of Dina is Kelly after 20 minutes? |
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A. |
1,020 ft |
B. |
1,140 ft |
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C. |
4,340 ft |
D. |
1,380 ft |
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Hint |
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