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1. |
Change north latitude 10.625° to degrees, minutes, and seconds. |
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A. |
10° 37' 50" |
B. |
10° 37' 30" |
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C. |
10° 36' 30" |
D. |
10° 36' 50" |
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Hint |
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2. |
Choose the angle measure represented by 4.7 rotations clockwise. |
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A. |
-846° |
B. |
846° |
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C. |
-1692° |
D. |
1692° |
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Hint |
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3. |
If  , find  . |
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A. |
 |
B. |
3 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Use a calculator to determine the value of cos 42° 39'. |
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A. |
0.921 |
B. |
0.736 |
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C. |
1.360 |
D. |
0.678 |
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Hint |
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5. |
Use the unit circle to find the value of cos 120°. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
-2 |
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Hint |
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6. |
Suppose  is an angle in standard position whose terminal side
lies in Quadrant II. If  , find  |
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A. |
 |
B. |
|
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C. |
 |
D. |
 |
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Hint |
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7. |
If P = 27° and r = 11, find p. |
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 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
The angle of elevation of a ladder leaning against a wall is 55°. The ladder is 30 feet long. How high up the wall does it reach? |
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A. |
about 17.21 ft |
B. |
about 24.57 ft |
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C. |
about 52.30 ft |
D. |
about 42.84 ft |
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Hint |
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9. |
If f = 9 and d = 13, find the measure of  . |
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 |
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A. |
about 46.2° |
B. |
about 34.7° |
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C. |
about 55.3° |
D. |
about 43.8° |
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Hint |
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10. |
A security light is being installed outside a loading dock. The light is mounted 25 feet above the ground. The light must be placed at an angle so that it illuminates a parking lot. If the end of the parking lot is 125 feet from the loading dock, what should be the angle of depression of the light? |
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A. |
about 78.5° |
B. |
about 11.5° |
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C. |
about 11.3° |
D. |
about 78.7° |
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Hint |
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11. |
In  find c if A = 36°, B = 101°, and b = 42.7. |
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A. |
about 25.3 units |
B. |
about 31.8 units |
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C. |
about 29.7 units |
D. |
about 40.2 units |
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Hint |
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12. |
Find the area of if a = 5.2, c = 13.6, and B = 46° 30'. |
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 |
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A. |
about 24.3 square units |
B. |
about 48.7 square units |
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C. |
about 51.3 square units |
D. |
about 25.6 square units |
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Hint |
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13. |
Determine the number of possible solutions for , given
a = 7, b = 3, and A = 115°. |
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A. |
none |
B. |
two |
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C. |
one |
D. |
three |
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Hint |
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14. |
Given and a = 5, b = 2 and A = 115°, find B. |
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A. |
14.6° |
B. |
21.3° |
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C. |
22.5° |
D. |
31.7° |
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Hint |
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15. |
In given A = 100°, b = 7 and c = 6, find a. |
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A. |
about 8.4 |
B. |
about 7.5 |
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C. |
about 6.3 |
D. |
about 10.0 |
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Hint |
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16. |
Find the area of if a = 5, b = 8, and c = 10. |
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A. |
about 7.6 square units |
B. |
about 39.6 square units |
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C. |
about 19.8 square units |
D. |
about 15.2 square units |
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Hint |
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