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1. |
The table below shows the land-speed records to the nearest mile per hour. Draw a scatter plot for the data and use it to predict the approximate land-speed record for the year 2005. Assume the rate of increase of speed records remains the same. |
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A. |
980 mph |
B. |
830 mph |
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C. |
600 mph |
D. |
700 mph |
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Hint |
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2. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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3. |
Solve y2 + 8y + 16 = 0 by factoring. |
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A. |
4 |
B. |
-4 |
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C. |
4, 8 |
D. |
-4, 4 |
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Hint |
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4. |
Find p(2) for p(x) = x4 + 3x3 - 2x2 - 4x + 1. |
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A. |
12 |
B. |
-7 |
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C. |
25 |
D. |
-1 |
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Hint |
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5. |
Solve  . |
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A. |
16 |
B. |
-4, 2 |
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C. |
4, 16 |
D. |
4 |
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Hint |
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6. |
Finance If $500 is deposited in an account paying 5.25% interest compounded continuously, find the amount in the account after 3 years. |
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A. |
$616.84 |
B. |
$585.29 |
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C. |
$555.36 |
D. |
$427.14 |
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Hint |
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7. |
Determine the sum of the geometric series for which a1 = -486,  , and an = -6. |
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A. |
325 |
B. |
322.6 |
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C. |
-726 |
D. |
732 |
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Hint |
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8. |
Find the sum of the infinite series  if it exists. |
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A. |
4 |
B. |
The sum does not exist. |
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C. |
1 |
D. |
8 |
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Hint |
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9. |
42% of a random sampling of 800 people felt that skim milk was as nutritional as whole milk. Find the margin of error for this sampling. |
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A. |
0.2436 |
B. |
0.0003045 |
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C. |
0.0348999 |
D. |
0.58 |
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Hint |
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10. |
Find the expansion of  . |
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A. |
a4 + 8a3 + 16a2 + 8a + 2 |
B. |
16a + a3 + 6a2 + 16a + 16 |
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C. |
 |
D. |
 |
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Hint |
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11. |
Solve x + 7 < 5 or x + 6 > 9. |
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A. |
{x | x > -2 or x < 3} |
B. |
{x | -2 < x < 3} |
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C. |
{x | x < -2 or x > 3} |
D. |
{x | -2 > x > 3} |
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Hint |
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12. |
Write an equation in slope-intercept form for the line that has a slope of 2 and passes through (-4, -6). |
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A. |
y = 2x - 2 |
B. |
y = 2x + 2 |
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C. |
y = 2x - 8 |
D. |
y = 2x + 8 |
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Hint |
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13. |
When finding the equation for a line of fit for a scatter plot, you should use __________. |
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A. |
the first and last points on the plot, with respect to the horizontal |
B. |
all of the points on the plot |
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C. |
two points that you think represent the data well |
D. |
the point most characteristic of the scatter plot |
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Hint |
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14. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
infinite solutions |
B. |
 |
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C. |
(-3, 1, 7) |
D. |
no solution |
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Hint |
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15. |
State whether the product of A3 × 4 and B3 × 4 is defined, and if it is defined, state the dimensions. |
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A. |
defined, 9 × 16 |
B. |
undefined |
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C. |
defined, 4 × 3 |
D. |
defined, 3 × 4 |
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Hint |
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16. |
Solve 2.4x + 1.7y = 8.2, 3.8x – 0.8y = 5.3. Round to the nearest hundredth. |
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A. |
(1.86, –2.20) |
B. |
(1.86, 2.20) |
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C. |
(–1.86, –2.20) |
D. |
(–1.86, 2.20) |
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Hint |
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17. |
Simplify (7x2 + 2x – 3) – (2x2 – 11x + 4) |
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A. |
 |
B. |
 |
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C. |
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D. |
5x2 + 13x – 7 |
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Hint |
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18. |
What is the GCF of  |
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A. |
np |
B. |
n |
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C. |
3n |
D. |
p2 |
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Hint |
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19. |
Solve 2x2 - 7x + 5 = 0 by completing the square. |
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A. |
 |
B. |
 |
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C. |
4, 10 |
D. |
 |
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Hint |
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20. |
Which of the following is not always a step in mathematical induction? |
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A. |
Assume true for a positive integer k. |
B. |
Prove true for some integer n. |
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C. |
Prove true for n + 1. |
D. |
Add (k + 1)2 to each side. |
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Hint |
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