Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Solve the triangle. a = 420 m, c = 350 m, B =
147.5 Apply the rules regarding the use of
significant digits after all computations are complete.
a. | A = 18.0, C = 14.5, b = 737
m | b. | A = 17.8, C = 14.7, b = 739
m | c. | A = 17.8, C = 14.7, b = 737
m | d. | A = 18.2, C = 14.3, b = 743
m | e. | A = 18.0, C = 14.5, b =
739 m |
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2.
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Solve the triangle. a = 74.8 m, c = 41.8 m, B =
16.2 Apply the rules regarding the use of
significant digits after all computations are complete.
a. | A = 145.4, C = 18.4, b =
36.6 m | b. | A = 144.8, C = 19.0, b =
37.0 m | c. | A = 145.2, C = 18.6, b =
36.8 m | d. | A = 145.2, C = 18.6, b =
36.6 m | e. | A = 145.4, C = 18.4, b =
36.8 m |
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3.
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Solve the triangle.
a = 49 yd, b = 75 yd, c = 63 yd
Apply the rules regarding the use of significant digits after all computations are
complete.
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4.
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Solve the triangle. b = 0.922 km, c = 0.387 km, A =
43 10 Apply the rules
regarding the use of significant digits after all computations are complete.
a. | B = 115 21, C = 21
29, a = 0.694 km | b. | B = 114 20, C = 22 30, a = 0.692 km | c. | B = 114 21, C = 22 29, a = 0.688
km | d. | B = 115 20, C = 21
29, a = 0.692 km | e. | B = 114 21, C = 22 30, a = 0.694 km |
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5.
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Solve the triangle. b = 63.2 km, c = 75.2 km, A =
123 20 Apply the rules
regarding the use of significant digits after all computations are complete.
a. | B = 25 40, C = 33,
a = 122.2 km | b. | B = 25 40, C = 31, a = 122.0 km | c. | B = 24 40, C = 32 0, a = 122.0 km | d. | B = 24 40, C = 32 0, a = 122.4
km | e. | B = 27 40, C = 32
0, a = 122.2
km |
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6.
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Solve the triangle.
a = 4.36 ft, b = 3.84 ft, c =
5.28 ft
Apply the rules regarding the use of significant digits after all computations are
complete.
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7.
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Two ships leave a harbor entrance at the same time. The first ship is traveling
at a constant 17 miles per hour, while the second is traveling at a constant 23 miles per hour. If
the angle between their courses is 121 , how far apart are they after 2 hours?
Apply the rules regarding the use of significant digits after all computations are
complete.
a. | 72 mi | b. | 64 mi | c. | 78
mi | d. | 70 mi | e. | 66 mi |
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8.
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Two planes take off at the same time from an airport. The first plane is flying
at 244 miles per hour on a course of 130.0 . The second plane is flying in the direction
165.0 at 356 miles per hour. Assuming there are no
wind currents blowing, how far apart are they after 2 hours? Apply the rules regarding the
use of significant digits after all computations are complete.
a. | 419 miles | b. | 421 miles | c. | 415
miles | d. | 411 miles | e. | 413 miles |
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9.
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A plane is flying with an airspeed of 245 miles per hour with heading 276.2 . The wind currents are running at a constant 47.2 miles per hour in the direction
266.1 . Find the ground speed and true course of the
plane. Apply the rules regarding the use of significant digits after all computations are
complete.
a. | 292 mph with heading 274.6 | b. | 302 mph with heading 274.6 | c. | 292 mph with heading 273.8 | d. | 292 mph with heading 294.6 | e. | 302 mph with heading 294.6 |
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10.
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A plane has an airspeed of 185 miles per hour and heading of 40.0 .
The ground speed of the plane is 207 miles per hour, and its true course is the direction of 44.0 . Find the speed and direction of the air currents, assuming they are constants.
Apply the rules regarding the use of significant digits after all computations are
complete.
a. | 26.3 mph at 73.9 from due to north | b. | 26.3 mph at 74.3 from due to north | c. | 25.9 mph at 74.3 from due to
north | d. | 25.9 mph at 73.9 from due to north | e. | 26.7 mph at 73.1 from due to north |
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