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Trigonometry
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Questions (13,704)
3. At the end of a dock, high tide of 14 m is recorded at 9:00 a.m. Low tide of 6 m is recorded at 3:00 p.m. A sinusoidal
7 answers
asked by
Peter
3,428 views
Which of the following expressions is equivalent to (cos(3x))/sin(x)cos(x))?
csc(x) cos(2x) - sec(x) sin(2x) sec(x) cos(2x) -
5 answers
asked by
Max
5,689 views
A tree is on bearing s 36° w from a point x and s 78°w from a point y. If x is 200m due east of y . calculate the distance of
5 answers
asked by
Michael
1,014 views
In triangle RST, angle S is a right angle and cdc R=13/12. What is Tan T?
answers: 13/5, 12/13, 12/5, 5/12
4 answers
asked by
Sam
2,281 views
Use the Law of Sines to find the missing side of the triangle.
Find b. A. 70.1 B. 43.8 C. 57.1 D. 31.5
24 answers
asked by
another surpise
7,871 views
point A and B are 100m apart and are of the same as the foot of a building. the angle of elevation of the top of the building
5 answers
asked by
Anonymous
4,333 views
A sound wave is modeled with the equation y= 1/4 cos2pi/3 theta.
a. Find the period. Explain your method. b. Find the amplitude.
4 answers
asked by
Veronika
2,694 views
two wires support a pole in opposite directions. they make angles of 36° and 42° with the horizontal, and the points where
2 answers
asked by
kenneth
555 views
Tai is calculating the midline of a trigonometric function. What is he MOST likely trying to determine?
A. the value halfway
1 answer
asked anonymously
57 views
Which is the radian measure of an angle whose sine is 0.8? Round your answer to two decimal
places. (1 point) 0.93 4.06 -2.22
1 answer
asked by
Unknown
43 views
solve the equation cos theta - tan theta * cos theta = 0 for 0< theta < 2 pi
My answer is pi/4,5pi/4
4 answers
asked by
Steve
3,890 views
find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.
4 answers
asked by
Jon
5,195 views
A tunnel for a new highway is to be cut through a mountain that is 260 feet high. At a distance of 200 feet from the base of the
4 answers
asked by
Marie
2,477 views
A radio tower 500 feet high is located on the side of a hill with an inclination to the horizontal of 5 degrees. How long should
5 answers
asked by
PLEASE HELP ME
4,218 views
Two observers P and Q 15m apart observe a kite in the same vertical plane and from the same side of the kite.The angle of
19 answers
asked by
Debbie
5,783 views
1. A man stands 12 feet from a statue. The angle of elevation from the eye level to the top of the statue is 30 degrees, and the
5 answers
asked by
Mz. Suzie
4,366 views
A. Find simpler, equivalent expressions for the following. Justify your answers.
(a) sin(180 + è) (b) cos(180 + è) (c) tan(180
5 answers
asked by
sally
2,992 views
Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1
b) Explain why
5 answers
asked by
Emily
3,069 views
the angle of elevation of the sun is 27 degree.a man is 180cm tall.how long is his shadow?give your answer to the nearest 10cm.
7 answers
asked by
kamal
2,887 views
A surveyor sights the far bank of a river at an angle of 110˚ to the near bank. She then moves 75 feet upriver and sights the
14 answers
asked by
Kevin
4,753 views
Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.
The adjacent is 12cm wide and the angle of
5 answers
asked by
A Victim of Bullying
9,406 views
John wishes to determine the height of a flagpole. He takes a sighting of the top of the flagpole from point P. He then moves
4 answers
asked by
Shane
2,147 views
The feet of two vertical poles of heights 3m and 7m are in line with a point P on the ground the smaller pole being between the
5 answers
asked by
Foluke
2,091 views
Angle θ is an acute angle of a right triangle. Determine the value of cot θ given the value of sin θ below. what is sin θ
2 answers
asked anonymously
68 views
19. Suppose you see a rock climber on a rock wall at a 32 degree angle of elevation. You are 1000 ft from the base of the rock
1 answer
asked by
cool;
33 views
A basketball player shoots the ball with an initial velocity of 14.4 ft./sec. at an angle of 41.9° with the horizontal. To the
3 answers
asked anonymously
67 views
Find value of tan75/2
9 answers
asked by
Ram
3,417 views
Determine the exact value of cos 465 degrees
a) √3 + √2/2 b) √2 + √3√2/4 c)√2 - √3√2/4 d)2+√2-√3√2/4
5 answers
asked by
Melinda
5,214 views
find sin theta and tan theta if cos theta = 2/3 and cot theta is >0
and find cos theta and cot theta if sin theta = 1/3 and tan
5 answers
asked by
skye
10,722 views
What is a simplified form of the expression (sec^3 theta) - (sec theta/cot^2 theta)?
a. 0 b. sec theta-tan theta c. cos theta d.
7 answers
asked by
girly girl
3,173 views
Which trigonometric functions are equivalent to tan(theta)? Select all that apply. (2 answers)
a. -tan(-theta)**** b. -tan(theta)
5 answers
asked by
girly girl
4,448 views
6) Convert the following polar equation into parametric equation/ Show all your work. Simplify the equations.
r(θ)=2 cos θ cot
7 answers
asked by
help
121 views
Two fire stations,P and Q,are 20 km apart. A ranger at station Q sees a fire 15.0 km away. If the angle between the line PQ and
6 answers
asked by
Nada
3,748 views
A hot air balloon is observed from two points A and B on the ground A and B are 800 feet apart the balloon is east of both
4 answers
asked by
Adreeanna
4,947 views
A man walks directly from point A towards the foot of a tall building 240m away. After covering 180m, he observes that the angle
9 answers
asked by
king
2,575 views
From two points A and B, 43m apart and on the same horizontal line with the foot C of an electric pole, the angles of elevation
7 answers
asked by
Aanuoluwa
3,063 views
A telephone pole that is 14ft y’all has fallen against a house. If the top of the telephone pole touches the house 8ft. Above
7 answers
asked by
John
3,416 views
A plane flies in a direction of N70°E for 80 km and then on a bearing of S10°W for
150 km. a How far is the plane from its
5 answers
asked by
p
2,529 views
A slide 4.1 meters long makes an angle of 35 degrees with the ground. To the nearest tenth of a meter how far above the ground
10 answers
asked by
Brandon
20,001 views
A kite is 32m above from the ground. The angle the kite string makes
with the ground is 39°. How long is the kite string, to the
4 answers
asked by
Jackie
3,727 views
If sin a=0.31 cos a=0.95 sin b=0.47 and cos b=0.88 what is sin (a+b)?
0.78 -0.17 0.98 0.72
4 answers
asked by
John
2,607 views
Use the Pythagorean identity to show that the double angle formula for cosine can be written as
a) cos2x = 1 - 2sin^2x b) cos2x =
3 answers
asked by
Anonymous
1,561 views
Two walkers set off at the same time from a crossroad and walk along flat straight roads inclined to each other at 68 degrees.If
3 answers
asked by
Shane
543 views
(3-4sin^2A)(1-3tan^2A) =(3-tan^2A)(4cos^A-3)
2 answers
asked by
Shreya
663 views
The right triangle upper N upper O upper P is shown with the right angle at upper N. Side upper O upper P is 100 centimeters.
1 answer
asked anonymously
67 views
Which of the following are true statements? Select all that apply. (1 point) Responses sin 67° = sin 42° cos 25° + cos 42°
1 answer
asked anonymously
99 views
Use the graph to answer the question.
Which set of parametric equations represents the graph of the function shown? (1 point)
1 answer
asked anonymously
43 views
A plane ascends at a 40° angle. When it reaches an altitude of one hundred feet, how much ground distance has it covered? To
5 answers
asked by
Anonymous
6,198 views
Write the general solution to y = arcsin (0.6428).
40°±360°k 140°±360°k 220°±360°k 320°±360°k How do I find the right
4 answers
asked by
Adrianna
5,743 views
If two angles are supplementary, then their sines are equal. Explain why. What about the cosines of supplementary angles? If you
5 answers
asked by
sarah
3,248 views
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