Three ships are situated as follows: A is 225 mi due north of C, and B is 375 mi due east of C. What is the bearing of B from A?
AN 56° E
BS 56° E
CN 59° E
DS 59° E
Mathematics · Question Bank
Trigonometry
88 of 124 questions match · page 5 of 5. Answer in your head first, then check the solution.
A support wire is anchored 12 m up from the base of a flagpole and the wire makes a 15° angle with the ground. How long is the wire?
A12 m
B92 m
C46 m
D24 m
The base of an isosceles triangle is 20.4 and the base angles are 48°40′. Find the altitude of the triangle.
A11.6
B10.8
C12.7
D9.5
Find the exact value of \(\sec\left(-\dfrac{\pi}{6}\right)\).
A\(\dfrac{3}{\sqrt{2}}\)
B\(\dfrac{1}{\sqrt{2}}\)
C\(\dfrac{3}{\sqrt{6}}\)
D\(\dfrac{2}{\sqrt{3}}\)
Points A and B are 100 m apart and are of the same elevation as the foot of a building. The angles of elevation of the top of the building from points A and B are 21 degrees and 32 degrees respectively. How far is A from the building?
A259.28 m
B265.42 m
C271.62 m
D277.92 m
Give the degree measure of the angle 3π/5.
A150 degrees
B106 degrees
C160 degrees
D108 degrees
A wheel 4 ft in diameter is rotating at 80 r/min. Find the distance (in ft) travelled by a point on the rim in 1 s.
A18.6
B16.8
C17.8
D18.7
If \(\sec^2 A = \tfrac{5}{2}\), then \(1 - \sin^2 A =\)
A0.2
B0.3
C0.4
D0.5