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Trigonometry
Page 9
Questions (13,507)
express 40% of sum of angles of a triangle into radian.
5 answers
asked by
emily
1,642 views
Which cosine function has maximum of 0.5, a minimum of -0.5, and a period of 2π/3?
5 answers
asked by
Sherrie
5,880 views
a right triangle has an acute angle(theta) suck that cot(theta)=15. find cos(theta)
4 answers
asked by
brenna
2,459 views
from a window 25m above a street, the angle of elevation of the top of a wall on the opposite side is15°.If the angle of
6 answers
asked by
jack
1,488 views
if tan=15/8 and cos negative then what is the value of [sin(-a)-cosa]/[tan(-a)+sec(-a)]
5 answers
asked by
Anwar
6,125 views
Define the inverse cotangent function by restricting the domain of the cotangent function to the interval (0, π). Evaluate the
4 answers
asked by
anonymous
2,024 views
Express each of the following in terms of another angle between 0 degrees and 180 degrees
a. sin 50 degrees b. sin 150 degrees c.
5 answers
asked by
becky
2,357 views
if y=tan u , u=v-1÷v, and v=ln x , what is the value of dy÷dx at x=e?
4 answers
asked by
Anonymous
693 views
1. The height of a bumble bee above the ground is modelled by h(t) = 0.5cos(2π t) + 2, where h is in metres and t
is in seconds.
6 answers
asked by
Jake
2,319 views
The height in metres of the water in a harbour is given approximately by the formula d=6+3cos30t, where t is the time in hours
5 answers
asked by
David
1,477 views
A forest ranger in a 140-foot observation tower sees a fire moving in a direct path toward the windmill by the lake. The angle
7 answers
asked by
Snake
4,014 views
WHAT IS 5pi/16 IN DEGREES?
4 answers
asked by
YAJI
1,147 views
A ship leaves port 21km on a bearing of 032 degree & 45km on a bearing of 287degrees
a, calculate it's distance from the port b,
4 answers
asked by
Anonymous
1,249 views
FROM A POINT ON THE EDGE OF THE SEA,ONE SHIP IS 5KM AWAY ON A BEARING SOUTH 50 DEGREES EAST AND ANOTHER IS 2KM AWAY ON A BEARING
10 answers
asked by
SOKARI
4,235 views
A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length
4 answers
asked by
Ash
4,642 views
State the period, amplitude, max/min values, range, domain, horizontal phase shift and vertical displacement.
y = -3cos (2x -
4 answers
asked by
A
1,728 views
A man 1.5m tall, standing on top of a mountain 298.5m high, observes the angles of depression of two flying boats D and C to be
4 answers
asked by
Ande2
2,924 views
An observer on top of a building 66 metres high,finds the angle of elevation to the top of a taller building to be 34
4 answers
asked by
Shane
1,157 views
1.) From the top of a lighthouse
52 metres high,the angles of depression of two ships due north of it are 42 and 37. How far
4 answers
asked by
MTH
2,832 views
express 40% of right angle into radian measure.
express two third of straight angle into radian. express sum of angles of a
5 answers
asked by
samantha
2,405 views
A communications tower is located at the top of a steep hill, as shown in the figure below. The angle of inclination of the hill
4 answers
asked by
Evan Ramseur
6,251 views
I need help!!!!
Write an expression describing all the angles that are coterminal with 127° . (Please use the variable "k" in
4 answers
asked by
HELP
6,598 views
Solve 8sin(pi/4x) = 6 for the four smallest positive solutions
Give your answers accurate to at least two decimal places, as a
6 answers
asked by
Anonymous
7,796 views
Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the
7 answers
asked by
mishael
3,354 views
A plane is 48 miles west and 49 miles north of an airport. The pilot wants to fly directly to the airport. What bearing should
5 answers
asked by
Anonymous
2,585 views
a ladder leans against a building forming an angle of 56 degrees with the ground.The base of the ladder is 3 feet from the
4 answers
asked by
Gabby
2,211 views
A lookout spots a fire from a 32 meter tower.The angle of depression from the tower to the fire is 13 degrees. To the nearest
5 answers
asked by
Anonymous
1,894 views
from a boat, the angle of elevation of the foot of a lighthouse on the edge of a cliff is 34 degrees. if the cliff is 150m high,
6 answers
asked by
mari
3,894 views
A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 15 feet from the top and is
4 answers
asked by
Anonymous
4,108 views
A rotating beacon is located 1 kilometer off a straight shoreline. If the beacon rotates at a rate of 3 revolutions per minute,
5 answers
asked by
Jon
3,799 views
Determine the quadrant in which an angle, θ, lies if θ = 5.40 radians.
a. 4th quadrant b. 3rd quadrant c. 2nd quadrant d. 1st
5 answers
asked by
Amelia
2,388 views
A ladder leaning against a wall makes a 75º angle with the ground. The base of the ladder is 5.0 feet from the wall. How high
3 answers
asked by
kisi
2,336 views
The Eiffel Tower is 300 m tall. When you are standing at a certain place in Paris, it subtends an angle of 7.0°. How far are
3 answers
asked by
-
1,863 views
A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that
6 answers
asked by
Anonymous
19,880 views
A forest ranger in a 120ft observation tower sees a fire. The angle of depression to the fire is 3.5. What is the horizontal
4 answers
asked by
Sydnei
3,567 views
A plane is flying at an altitude of 880 m. Sarah is standing on the ground and she observes the angle of elevation to the plane
5 answers
asked by
Dana
1,282 views
A man standing 18m due west from the base of a vertical tower observes that the angle of elevation of the is 60⁰. He then
3 answers
asked by
Nouf
285 views
The angle of elevation of the top of the spire from the foot of a building is 60°.The angle of depression of the top of the
4 answers
asked by
Frank
746 views
If CSC X = 4 in the quadrant 1, what is COS X?
4 answers
asked by
April
1,262 views
The angle of depression of a point g on a horizontal ground top , T of an electric pole is 25 degrees .if the distance from g to
4 answers
asked by
Anita
1,285 views
Evaluate the expression under the given conditions.
sin2(theta), sin(theta)=1/7(theta) in Q2
5 answers
asked by
Amanda
3,238 views
If csc A=2 find the value of sin A
4 answers
asked by
amanda
2,588 views
Given the following function, choose the graph with the two possible angles with the domain 0 < or = to theta < or = to 360
7 answers
asked by
Anonymous
5,201 views
What is the value of sin 27.6 using your four-figure table
7 answers
asked by
Suliyat
600 views
Show that there are at least two ways to calculate the angle formed by the vectors
[cos 19, sin 19] and [cos 54, sin 54].
5 answers
asked by
Anonymous
1,572 views
A boat is sailing due east parallel to the shoreline at a speed of 10 miles per hour. At a given time the bearing to the
5 answers
asked by
Abbey
7,738 views
The angle of elevation of the top of a vertical pole from a height 1.54m above a horizontal ground is 40 degree.the foot of the
5 answers
asked by
Love
1,545 views
Cos square 30 degree cos square 45 degree + 4 sec square 60 degree + 1/2 cos square 90 degree - 2 tan square 60 degree
7 answers
asked by
trisha
7,638 views
A boy walk 1260m on a bearing 120degree.how far south is he from his starting point
7 answers
asked by
Anonymous
3,639 views
Add the following vectors using trigonometry (i.e. cosine and sine laws).
9 N on a heading of [S2°W] and 11 N on a heading of
4 answers
asked by
Anonymous
3,119 views
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