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1. |
Find the value of x. Round to the nearest tenth. |
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A. |
131.6 |
B. |
78.8 |
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C. |
2.1 |
D. |
20.3 |
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Hint |
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2. |
A school flagpole casts a 16-foot shadow on the lawn. A teacher stood at the shadow's edge and measured the angle of elevation to the top of the pole at 42°. How tall is the pole? |
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A. |
5.6 ft |
B. |
14.4 ft |
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C. |
12 ft |
D. |
17.8 ft |
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Hint |
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3. |
What is -240° expressed in radian measure? |
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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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4. |
Find one positive angle and one negative angle that are coterminal with 310°. |
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A. |
-50°, 670° |
B. |
100°, -670° |
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C. |
50°, -670° |
D. |
-120°, 400° |
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Hint |
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5. |
Find the exact value of sin 510°. |
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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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6. |
Determine tan  . |
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A. |
0.7203 |
B. |
1.6641 |
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C. |
0.6508 |
D. |
0.8571 |
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Hint |
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7. |
What is the reference angle 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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8. |
Suppose Johnny was standing at the origin. Then, he walked northwest at an angle of 60° with respect to west. If the distance that he traveled is 16 units, what is his present position? |
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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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9. |
In A = 65°, a =10, and b = 13. Find B. |
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A. |
B = 71.0° |
B. |
B = 19.0° |
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C. |
no solution |
D. |
B = 44.2° |
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Hint |
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10. |
Determine whether  has no solution, one solution, or two solutions if A = 46°, a = 11, and b = 15. |
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A. |
0 solutions |
B. |
1 solution |
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C. |
2 solutions |
D. |
cannot be determined from given information |
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Hint |
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11. |
Eddie started running from his home, and headed west for 4 miles. Then he turned and headed northwest at an angle of 70° with respect to west. If he stayed on this road for 7 miles, how far away from home was he if he could take a straight path to his home? |
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A. |
3.52 miles |
B. |
9.2 miles |
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C. |
6.8 miles |
D. |
10.8 miles |
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Hint |
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12. |
What method should be used when we have one side and one angle opposite that side? |
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A. |
law of cosines only |
B. |
cannot be determined from given information |
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C. |
law of sines |
D. |
law of cosines, then law of sines |
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Hint |
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13. |
What is the period of the function represented by the graph? |
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A. |
150 |
B. |
25 |
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C. |
10 |
D. |
50 |
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Hint |
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14. |
Which of the following is not necessarily true concerning the Arcsin function? |
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A. |
Its domain is the set of real numbers from –1 to 1. |
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B. |
Its range is the set of angle measures from  |
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C. |
Sin x = y if and only if Sin-1 x = y |
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D. |
[Sin-1  Sin](x) = [Sin Sin-1](x) = x |
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Hint |
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