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1. |
State which ordered pair satisfies  |
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A. |
(0, 1) |
B. |
(1, 5) |
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C. |
(0, 0) |
D. |
(1, 2) |
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Hint |
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2. |
Write an inequality to describe all the points on the coordinate plane
above y = -4. |
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A. |
y > 4 |
B. |
y < -4 |
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C. |
y < 4 |
D. |
y > -4 |
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Hint |
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3. |
Does the inverse of  exist? If it does not exist, explain why not. |
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A. |
No; the matrix is not square. |
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B. |
Yes |
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C. |
No; the elements of the principal diagonal are not 1. |
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D. |
No; the determinant equals 0. |
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Hint |
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4. |
Solve  |
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A. |
-49 |
B. |
14 |
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C. |
49 |
D. |
7 |
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Hint |
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5. |
Solve  |
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A. |
 |
B. |
 |
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C. |
no solution |
D. |
 |
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Hint |
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6. |
Simplify  |
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A. |
15 |
B. |
315 |
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C. |
 |
D. |
 |
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Hint |
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7. |
Determine the sum of an arithmetic series where n = 45, a1 = 14.3, and an = 80.3. |
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A. |
4257 |
B. |
2128.5 |
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C. |
3627.8 |
D. |
3613.5 |
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Hint |
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8. |
Choose the angle that measures  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
If Cos- 1  , what is the value of y? |
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A. |
30° |
B. |
45° |
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C. |
60° |
D. |
90° |
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Hint |
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10. |
Evaluate p · (p + 3q) – r if p = -7, q = 4, and r = -16. |
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A. |
-51 |
B. |
77 |
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C. |
45 |
D. |
-19 |
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Hint |
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11. |
Graph the solution set to the inequality 5x – 3 < 3x + 7. |
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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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12. |
Graph the relation represented by y = x2 – x + 1. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
A cellular telephone company charges $0.20 per minute or fraction thereof. If Miguel, a customer of this company, talks on his cell phone for 23.27 minutes, what will his charges be for that phone call? |
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A. |
$4.65 |
B. |
$4.60 |
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C. |
$4.80 |
D. |
$4.66 |
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Hint |
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15. |
Simplify:  if  |
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A. |
 |
B. |
 |
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C. |
Cannot be simplified further. |
D. |
 |
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Hint |
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16. |
Write the expression  in quadratic form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
If f(7) = 12 and g(2) = 7, then what is the value of  ? |
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A. |
7 |
B. |
84 |
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C. |
2 |
D. |
12 |
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Hint |
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18. |
Gail and Gayla throw balls into the air. The equation  represents Gail's throw, where x is time in seconds, and y is height. Gayla's throw is represented by  When are the balls at the same height? |
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A. |
at –1 seconds |
B. |
at 7 seconds |
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C. |
at 5 seconds |
D. |
never |
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Hint |
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19. |
Two cities have insect problems. The insects in City A increase exponentially according to the equation y = 120,000e0.04t. The insects in City B increase exponentially according to the equation y = 90,000e0.08t. When will the cities have an equal amount of insects? |
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A. |
at t = 7.19 years |
B. |
at t = 34.66 years |
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C. |
at t = 3 years |
D. |
at t = 7.89 years |
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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. |
mode |
B. |
standard deviation |
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C. |
variance |
D. |
range |
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Hint |
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