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1. |
Name the additive inverse 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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2. |
Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is  |
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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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3. |
Which element is in row 3, column 1? |
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A. |
-1 |
B. |
6 |
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C. |
9 |
D. |
4 |
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Hint |
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4. |
Find (c2 + 2c - 6)(c + 5). |
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A. |
c3 + 2c2 - 30 |
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B. |
c3 + 7c2 + 4c - 30 |
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C. |
c3 + 2c2 - 6c - 30 |
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D. |
c3 + 2c2 + 5 |
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Hint |
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5. |
Factor 6x3y + 15x2y2 - 3x4y. |
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A. |
x2y(6x + 15y - 3x2) |
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B. |
3x2y(2x+ 5y - x2) |
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C. |
3xy(2x2 + 5xy - x3) |
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D. |
xy(6x2 + 15xy - 3x3) |
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Hint |
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6. |
Find the standard deviation of the data in the stem-and-leaf plot to the nearest hundredth. |
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A. |
11.74 |
B. |
228.50 |
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C. |
217.00 |
D. |
10.72 |
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Hint |
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7. |
The scores on a national achievement test are normally distributed with a mean of 50 and a standard deviation of 10. Out of a group of 200 students, how many would you expect to score more than 70? |
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A. |
5 |
B. |
32 |
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C. |
1 |
D. |
10 |
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Hint |
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8. |
What is the leading coefficient of the polynomial
p(x) = -3x5 + 4x3 - 5x2 + 4x - 6? |
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A. |
-3 |
B. |
3 |
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C. |
-6 |
D. |
4 |
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Hint |
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9. |
Solve log6 ( y2 - 9) = log6 ( 7y - 21). |
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A. |
4 |
B. |
3, 4 |
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C. |
-6, 4 |
D. |
3, 6 |
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Hint |
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10. |
Find  to three decimal places. |
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A. |
1.6113 |
B. |
1.3617 |
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C. |
2.3225 |
D. |
3.1355 |
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Hint |
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11. |
Write the first four terms of the geometric sequence in which a1 = -3 and r = -4. |
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A. |
3, 12, 48, 192 |
B. |
3, -12, 48, -192 |
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C. |
–3, -12, -48, -192 |
D. |
-3, 12, -48, 192 |
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Hint |
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12. |
Find the sum of the first five terms of the geometric series for which
a1 = 2 and r = 2. |
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A. |
14 |
B. |
126 |
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C. |
30 |
D. |
62 |
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Hint |
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13. |
How many different ways can the letters of ''OHIO'' be arranged? |
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A. |
12 |
B. |
48 |
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C. |
6 |
D. |
24 |
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Hint |
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14. |
Simplify the expression sin x(1 + cot2x) |
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A. |
sin2x |
B. |
1 + cos2x |
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C. |
sin x tan x |
D. |
csc x |
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Hint |
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15. |
Which of the following cannot be true concerning Cramer's Rule for two variables? |
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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. |
Solve x2 + 2x+ 3 = 0 by completing the square. |
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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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17. |
Solve  by graphing. |
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A. |
{x| 4.19< x < –1.19} |
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B. |
{x| 0 < x < 4.19} |
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C. |
{x| –1.19 < x < 4.19} |
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D. |
{x| –1.19 < x < 0} |
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Hint |
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18. |
What is the height of a computer whose base is x2 + 4x + 4 and whose volume is x3 + 3x2 – 4? |
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A. |
x – 1 |
B. |
(x – 1)( x + 2) |
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C. |
x + 1 |
D. |
x + 2 |
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Hint |
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19. |
Given that log 8 10  1.11 and log 8 60 1.97, find log 8 6. |
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A. |
3.08 |
B. |
1.16 |
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C. |
1.77 |
D. |
0.86 |
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Hint |
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20. |
Which measure of variation does not depend on the mean? |
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A. |
range |
B. |
mode |
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C. |
standard deviation |
D. |
variance |
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Hint |
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