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Trig Section 7.2 Quiz

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Solve the triangle.

a = 420 m, c = 350 m, B = 147.5mc001-1.jpg

Apply the rules regarding the use of significant digits after all computations are complete.
a.
A = 18.0mc001-2.jpg, C = 14.5mc001-3.jpg, b = 737 m
b.
A = 17.8mc001-4.jpg, C = 14.7mc001-5.jpg, b = 739 m
c.
A = 17.8mc001-6.jpg, C = 14.7mc001-7.jpg, b = 737 m
d.
A = 18.2mc001-8.jpg, C = 14.3mc001-9.jpg, b = 743 m
e.
A = 18.0mc001-10.jpg, C = 14.5mc001-11.jpg, b = 739 m
 

 2. 

Solve the triangle.

a = 74.8 m, c = 41.8 m, B = 16.2mc002-1.jpg

Apply the rules regarding the use of significant digits after all computations are complete.
a.
A = 145.4mc002-2.jpg, C = 18.4mc002-3.jpg, b = 36.6 m
b.
A = 144.8mc002-4.jpg, C = 19.0mc002-5.jpg, b = 37.0 m
c.
A = 145.2mc002-6.jpg, C = 18.6mc002-7.jpg, b = 36.8 m
d.
A = 145.2mc002-8.jpg, C = 18.6mc002-9.jpg, b = 36.6 m
e.
A = 145.4mc002-10.jpg, C = 18.4mc002-11.jpg, b = 36.8 m
 

 3. 

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.
a.
mc003-1.jpg
b.
mc003-2.jpg
c.
mc003-3.jpg
d.
mc003-4.jpg
e.
mc003-5.jpg
 

 4. 

Solve the triangle.

b = 0.922 km, c = 0.387 km, A = 43mc004-1.jpg 10mc004-2.jpg

Apply the rules regarding the use of significant digits after all computations are complete.
a.
B = 115mc004-3.jpg 21mc004-4.jpg, C = 21mc004-5.jpg 29mc004-6.jpg, a = 0.694 km
b.
B = 114mc004-7.jpg 20mc004-8.jpg, C = 22mc004-9.jpg 30mc004-10.jpg, a = 0.692 km
c.
B = 114mc004-11.jpg 21mc004-12.jpg, C = 22mc004-13.jpg 29mc004-14.jpg, a = 0.688 km
d.
B = 115mc004-15.jpg 20mc004-16.jpg, C = 21mc004-17.jpg 29mc004-18.jpg, a = 0.692 km
e.
B = 114mc004-19.jpg 21mc004-20.jpg, C = 22mc004-21.jpg 30mc004-22.jpg, a = 0.694 km
 

 5. 

Solve the triangle.

b = 63.2 km, c = 75.2 km, A = 123mc005-1.jpg 20mc005-2.jpg

Apply the rules regarding the use of significant digits after all computations are complete.
a.
B = 25mc005-3.jpg 40mc005-4.jpg, C = 33mc005-5.jpg, a = 122.2 km
b.
B = 25mc005-6.jpg 40mc005-7.jpg, C = 31mc005-8.jpg, a = 122.0 km
c.
B = 24mc005-9.jpg 40mc005-10.jpg, C = 32mc005-11.jpg 0mc005-12.jpg, a = 122.0 km
d.
B = 24mc005-13.jpg 40mc005-14.jpg, C = 32mc005-15.jpg 0mc005-16.jpg, a = 122.4 km
e.
B = 27mc005-17.jpg 40mc005-18.jpg, C = 32mc005-19.jpg 0mc005-20.jpg, a = 122.2 km
 

 6. 

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.
a.
mc006-1.jpg
b.
mc006-2.jpg
c.
mc006-3.jpg
d.
mc006-4.jpg
e.
mc006-5.jpg
 

 7. 

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 121mc007-1.jpg, 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
 

 8. 

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 130.0mc008-1.jpg. The second plane is flying in the direction 165.0mc008-2.jpg 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
 

 9. 

A plane is flying with an airspeed of 245 miles per hour with heading 276.2mc009-1.jpg. The wind currents are running at a constant 47.2 miles per hour in the direction 266.1mc009-2.jpg. 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 274.6mc009-3.jpg
b.
302 mph with heading 274.6mc009-4.jpg
c.
292 mph with heading 273.8mc009-5.jpg
d.
292 mph with heading 294.6mc009-6.jpg
e.
302 mph with heading 294.6mc009-7.jpg
 

 10. 

A plane has an airspeed of 185 miles per hour and heading of 40.0mc010-1.jpg. The ground speed of the plane is 207 miles per hour, and its true course is the direction of 44.0mc010-2.jpg. 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 73.9mc010-3.jpg from due to north
b.
26.3 mph at 74.3mc010-4.jpg from due to north
c.
25.9 mph at 74.3mc010-5.jpg from due to north
d.
25.9 mph at 73.9mc010-6.jpg from due to north
e.
26.7 mph at 73.1mc010-7.jpg from due to north
 



 
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