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1. |
The temperature f(x) of water in a lake in degrees Fahrenheit is estimated by the function shown below, where x is the depth in feet of the water. What would be the temperature of water 30 feet below the surface? |
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A. |
33°F |
B. |
111°F |
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C. |
63°F |
D. |
71.25°F |
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Hint |
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2. |
A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn? |
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A. |
$3.30 |
B. |
$4.80 |
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C. |
$1.80 |
D. |
$4.55 |
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Hint |
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3. |
Find the area of the parallelogram. |
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A. |
(36a2 - 84ab - 49b2) cm2 |
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B. |
(12a2 + 14b2) cm2 |
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C. |
(36a2 + 49b2) cm2 |
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D. |
(36a2 - 49b2) cm2 |
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Hint |
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4. |
What is the difference between the highest and the lowest values? |
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A. |
84 |
B. |
100 |
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C. |
75 |
D. |
80 |
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Hint |
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5. |
Based on the line plot, what is the most frequent score? |
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A. |
75 |
B. |
71 |
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C. |
21 |
D. |
100 |
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Hint |
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6. |
How many planes appear in the figure shown? |
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A. |
9 |
B. |
6 |
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C. |
8 |
D. |
7 |
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Hint |
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7. |
Find the measures of two supplementary angles, and  if  and  |
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A. |
39, 141 |
B. |
36, 144 |
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C. |
37, 143 |
D. |
38, 142 |
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Hint |
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8. |
Find the value of x in the pair of similar polygons. |
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A. |
6 |
B. |
7.5 |
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C. |
7 |
D. |
7.3 |
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Hint |
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9. |
Which figure is not a polygon? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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10. |
If the circumference of a circle is 56.5, find the radius to the nearest whole number. |
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A. |
18 |
B. |
16 |
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C. |
9 |
D. |
89 |
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Hint |
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11. |
A dilation with center C produced quadrilateral RSTV. What is the scale factor? |
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A. |
12 |
B. |
 |
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C. |
9 |
D. |
2 |
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Hint |
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12. |
A rectangle with length of 4 and width of 5 is enlarged by a scale factor of 3. What is the area of the enlargement? |
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A. |
60 square units |
B. |
180 square units |
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C. |
20 square units |
D. |
56 square units |
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Hint |
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13. |
Which statement is true about dilations? |
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A. |
Dilations are isometries. |
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B. |
Dilations are the combination of two reflections. |
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C. |
Dilations form congruent images. |
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D. |
Dilations form similar images. |
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Hint |
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14. |
Triangle QRS has vertices Q(5, 3), R(3, 7), and S(1, 2). Find the coordinates of the image of triangle QRS after it is rotated 90° counterclockwise about the origin. |
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A. |
Q´(-3, 5), R´(-7, 3), S´(-2, 1) |
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B. |
Q´(-3, -5), R´(-7, -3), S´(-2, -1) |
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C. |
Q´(-5, -3), R´(-3, -7), S´(-1, -2) |
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D. |
Q´(5, -3), R´(3, -7), S´(1, -2) |
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Hint |
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15. |
Factor x2 + 6x – 7. |
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A. |
(x + 3)(x + 3) |
B. |
(x – 1)(x + 7) |
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C. |
(x – 3)(x – 3) |
D. |
(x + 1)(x – 7) |
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Hint |
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16. |
Solve  |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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17. |
Two bases of a trapezoid are (6x + 7) cm and (14x – 3) cm. If the median is 52 cm, what is the value of x? |
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A. |
5 |
B. |
104 |
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C. |
20 |
D. |
52 |
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Hint |
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18. |
Write the ratio of measurements 28 feet to 7 yard in lowest terms. |
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A. |
4:7 |
B. |
4:3 |
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C. |
3:4 |
D. |
4:1 |
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Hint |
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19. |
Solve  by the method of determinants. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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20. |
Factorx2 - 7x + 12. |
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A. |
(x - 6)(x - 2) |
B. |
(x - 3)(x - 4) |
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C. |
(x + 3)(x + 4) |
D. |
(x + 6)(x + 2) |
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Hint |
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