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1. |
Name the property illustrated by the statement below.
If 5n = 15, then 15 = 5n. |
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A. |
symmetric property of equality |
B. |
transitive property of equality |
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C. |
substitution property of equality |
D. |
reflexive property of equality |
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Hint |
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2. |
Determine which matrix has a determinant. |
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A. |
[1 -4 -8] |
B. |
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C. |
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D. |
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Hint |
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3. |
Find the perimeter of triangle ABC. |
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A. |
(4w + 8) in. |
B. |
(8w + 9) in. |
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C. |
(8w + 8) in. |
D. |
(4w + 22) in. |
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Hint |
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4. |
Simplify  |
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A. |
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B. |
0 |
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C. |
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D. |
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Hint |
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5. |
Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t2 = 0. Approximately how long does it take for the ball to hit the ground? |
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A. |
4.8 s |
B. |
0.1 s |
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C. |
-0.1 s |
D. |
3.2 s |
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Hint |
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6. |
Solve x2 + 2x - 15 > 0. |
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A. |
{x | x < -5 or x > 3} |
B. |
{x | x < -3 or x > 5} |
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C. |
-3, 5 |
D. |
{x | -5 < x < 3} |
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Hint |
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7. |
Find g[h(x)] if g(x) = x2 and h(x) = x + 3. |
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A. |
x3 + 3x2 |
B. |
x2 + 6x + 9 |
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C. |
x2 - x - 3 |
D. |
x2 + x + 3 |
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Hint |
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8. |
Simplify  |
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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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9. |
Simplify  |
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A. |
y30 |
B. |
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C. |
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D. |
y3 |
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Hint |
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10. |
Solve log3 (x + 4) - log3 (x - 2) = 2 log3 2. |
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A. |
9 |
B. |
4 |
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C. |
6 |
D. |
8 |
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Hint |
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11. |
Susan forgot to study for her economics quiz. She guessed on all five true/false questions. Does this situation represent a binomial experiment? |
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A. |
Yes, because each trial has exactly two outcomes; the probability of each trial is ; there are five trials and these are independent. |
B. |
Yes, because the answer is right or wrong. |
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C. |
Yes, because the questions are dependent and mutually inclusive. |
D. |
Yes, because the trials are selected at random. |
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Hint |
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12. |
Determine the exact value of sin 150°. |
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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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13. |
Find cot if 180° < < 270° and cos . |
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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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14. |
Solve the equation  |
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A. |
20 |
B. |
9 |
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C. |
-1 |
D. |
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Hint |
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15. |
For which scatter plot will a good line of fit have a negative y-intercept? |
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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. |
Which of the following is always true about inequalities whose graphs do not overlap? |
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A. |
Each slope is negative. |
B. |
Each slope is positive. |
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C. |
Their slopes are equal. |
D. |
Their slopes are opposite reciprocals. |
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Hint |
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17. |
Find the area of a triangle whose vertices are located at (-3, 2), (0, -5), and (4, 4). |
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A. |
1 |
B. |
55 |
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C. |
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D. |
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Hint |
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18. |
List all of the possible rational zeros of the function  . |
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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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19. |
Is the inverse of a quadratic function a square root function? |
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A. |
It is a square root function only if it is a quadratic function that opens up. |
B. |
It is a square root function only if the range is restricted to nonnegative numbers. |
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C. |
Yes. |
D. |
No. |
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Hint |
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20. |
A Mickey Mantle rookie card appreciates in value 2% every year. How much was it worth in 1990 if it is worth $35,000 in 2000? |
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A. |
$28, 712 |
B. |
$42,665 |
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C. |
$5653 |
D. |
$216,711 |
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Hint |
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