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Trig
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A tourist looks from the observation deck of the space needle in Seattle. The deck is at a height of 520ft. She sees her friend
6 answers
asked by
Kay
3,405 views
the graph of an inverse trigonometric function passes through the point (1,pi/2). which of the following could be the equation
3 answers
asked by
Danny
1,065 views
a pilot wishes to fly on a course bearing 45 and with a ground speed of 600 km per hour. If a wind is blowing from the southwest
4 answers
asked by
Mike
604 views
Write an equation of the circle described below:
Given a circle with the center (5,1) and a point on the circle (8,-2).
4 answers
asked by
Mike
1,355 views
Tan theta / 1- tan theta -cot theta /1-cot theta =cos theta + sin theta/cos theta -sin theta
3 answers
asked by
Tanya
675 views
rewrite in polar form x^2+y^2-6y-8=0
r^2=6r+6sin theta +8 r^2=6rsin theta +8 r^2=6r+6cos theta +8 r^2=6r cos theta +8
2 answers
asked by
John
675 views
While the car is being driven , the tire picks up a nail. How high above the ground is the nail after the car has travelled 1km
1 answer
asked by
Anonymous
422 views
For parametric equations x=a cos t
And y=b sin t Describe how the values of a and b determine which comic section will be traced.
1 answer
asked by
Alan
435 views
How would you show that sin(x+pi)=-sin x?
I’m not sure how to start so if someone can tell me how to start it I should be able
4 answers
asked by
Danny
327 views
If tan a= 12/15, 0 degrees < a < 90 degrees, then find the exact value of each of the following:
A. Sin a/2 B. Cos a/2 C. Tan a/2
2 answers
asked by
Erin
731 views
Find the exact trigonometric function of cos(2a).
hyp: 17 opp: 15 adj: 8
2 answers
asked by
Erin
461 views
Two ships leave a harbor at the same time. One ship travels on a bearing S11 degrees W at 12 mph. The second ship travels on a
5 answers
asked by
Erin
2,845 views
The magnitude and direction of two forces acting on an object are 100 pounds, S79degreesE, and 60 pounds N68degreesE,
3 answers
asked by
Erin
1,228 views
The dimensions of a triangular lot are 193 feet by 134 feet by 186 feet. If the price of such land is $3 per square foot,
2 answers
asked by
Erin
600 views
a. Find the magnitude of the force required to keep a 3100-pound car from sliding down a hill inclined at 5.7° from the
3 answers
asked by
Erin
1,509 views
How do you find the complementary and supplementary angles in degrees?
1 answer
asked by
Zach
420 views
Write y= -2+7csc(3x-6) in terms of secant.
3 answers
asked by
Oniess
429 views
Jenny is standing 400 feet from an 800 foot tall building. Jenny walks away from the building to a point where the angle of
2 answers
asked by
Alex
613 views
A road has a grade (slope) of 15%. What is the angle of elevation of the road, to the nearest degree?
3 answers
asked by
Ash
2,484 views
Solve the equation 3sin(2x)+3sinx=0 on the interval 0 ≤ pi <2pi. Give the sum of all the solutions.
4 answers
asked by
Ted
1,719 views
Simplify the expression (tanθ+cotθ)^2 - (tanθ-cotθ)^2 using algebra and trigonometric identities.
2 answers
asked by
Bob
746 views
Rewrite the expression secvcscv+cotv/secvcscv in terms of sine and cosine, then simplify using trigonometric identities.
2 answers
asked by
Bob
636 views
Evaluate the expression cos75°sin15°+sin75°cos15°
4 answers
asked by
Chad
620 views
Which of the following polar coordinates describes the same point as the point (5, -pi/6) given in polar coordinates?
a.) (5,
4 answers
asked by
Ted
2,511 views
Convert the following equation from an equation using polar coordinates to an equation using rectangular coordinates:
3 answers
asked by
Ted
831 views
Which of the following is not a fifth root of -1?
a.) cos 36°+ i sin 36° b.) cos 252°+ i sin 252° c.) cos 108°+ i sin 108°
1 answer
asked by
Ted
363 views
What are the purposes of using alpha, beta, and gamma for angle?
1 answer
asked by
Anonymous
302 views
Which of the following are polar coordinates of the point whose rectangular coordinates are (-2, -2sqrt3)?
a.) (4, pi/3) b.)
2 answers
asked by
Ted
543 views
I don't know how or when should I use Alpha, Beta Theta and Gamma? Which one should be used first, second, third and forth?
1 answer
asked by
Anonymous
285 views
4 Cos^2 x-1=0
1 answer
asked by
Sasa
278 views
A 15 foot ladder is learning against a house so that it is 7 feet from the ground. What angle does the ladder make with the
1 answer
asked by
jesse boos
386 views
a circle of radius, r, with a sector of 45° shaded.
(a) Find the length of the arc of the colored sector in the figure when r =
3 answers
asked by
Anon Math
1,293 views
Find the exact value of each trigonometric function for the given angle θ.
(2, -sqrt(5) ), cotθ w/ unit cirlce line in 4th quad
4 answers
asked by
Sammirah
1,171 views
Express 1 + 2*cos(a) as a product
1 answer
asked by
anonymous
295 views
Express 1 - 2*cos(2a) as a product
2 answers
asked by
anonymous
461 views
The quadratic function f is negative only on the open interval (−2, 1 4 ) and its graph passes through the point (−1, −5).
2 answers
asked by
Mia
605 views
The roots of a quadratic equation ax^2+bx+c=0 are 1+i√5 and 1−i√5 . Find possible values of a, b and c.
1 answer
asked by
Mia
326 views
Whatat other phenomena can be modeled using sinusoidal functions?
1 answer
asked by
A
326 views
what is the period of y= sin 6(x) and y= cos (-1/3)x
1 answer
asked by
Lucy
325 views
What is the amplitude and the equation of the midline of the curve y=5sin(x)+3 ?
1 answer
asked by
Lucy
385 views
The average monthly temperatures of Atlanta, GA are shown below.
Jan 32 degrees Feb 35 degrees Mar 44 degrees Apr 53 degrees May
4 answers
asked by
Lucy
1,688 views
It is now time to complete the Periodic Events Discussion. Later on in this Unit, you will learn how to model events by writing
1 answer
asked by
Lucy
720 views
Draw a picture and show all work.
Given sinA=4/5 and cosA<0, find tanA
1 answer
asked by
Lucy
495 views
Draw a picture and show all work.
Given cosA=3/10 and tanA<0, find sinA
2 answers
asked by
Lucy
596 views
Angle a lies in quadrant 2, and tan(a)= -(12/5). Angle B lies in quadrant 4, and cos(B)= (3/5).
What is the exact value of
2 answers
asked by
Michael
2,163 views
I just need help with the "_", since each "_" needs to be a whole number from 1-9, and each number can only be used once.
Equatio
3 answers
asked by
Deven
227 views
exact value of tan(arccos((x−1)/8))
1 answer
asked by
asap help pls
376 views
How do you find the exact value of sin(-105) degrees without a calculator
5 answers
asked by
OwO
696 views
Tan theta =2/3 and cos theta <0, find cos Theta and csc theta
4 answers
asked by
Veronica
412 views
A Ferris wheel is 36 meters in diameter and boarded from a platform that is 1 meter above the ground. The six o’clock position
2 answers
asked by
Jessie
853 views
sin35cos25+cos25sin35
1 answer
asked by
Bruh
159 views
I cant seem to figure out the answer for this question:
One of the tallest totem poles in the world is located in Alert Bay,
2 answers
asked by
Carl
1,162 views
4cosasina+cos^2(a)
3 answers
asked by
henk
223 views
4cosasina+cos^2(a)=-2
1 answer
asked by
henk
182 views
How do I solve for this law of sine to find theta? The part 90+theta confuse me.
(sin(90+theta)/700)=(sin(105)/960)
1 answer
asked by
Anonymous
174 views
From a boat on the lake, the angle of elevation to the top of a cliff is 28°13'. If the base of the cliff is 205 feet from the
3 answers
asked by
Mady
419 views
A car on a straight and level road is approaching a mountain. At some point on the trip, the angle of elevation from the car to
1 answer
asked by
Mady
292 views
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed,
2 answers
asked by
Mady
636 views
Write a sine function that has an amplitude of 4, period of 3π, and midline y = -3
4 answers
asked by
Barry
1,149 views
The function y=sinx has been transformed. It now has amplitude of 5.0, a period of 26, a phase shift of 2 units to the right, a
3 answers
asked by
Howl
749 views
The angle z has the terminal arm in the second quad. and tan z= -3. explain how you would find the exact values of sin z, cos z,
1 answer
asked by
Zu
153 views
Determine exact solutions for each equation in the interval x ∈ [0, 2π].
sinx + sqrt3 / 2 = 0
2 answers
asked by
Zu
218 views
Two sine waves of the same period are described as 𝑦1 = 5𝑠𝑖𝑛 (3𝑡 − 𝜋/3) and 𝑦2 = 5𝑠𝑖𝑛 (3𝑡 −
1 answer
asked by
Help please
205 views
If the angles of a right right triangle at A form a Geometric progression, what would be the ratio?
1 answer
asked by
Help please
168 views
A boy looks up to see a bellbird perched on the top of a 20-meter-tall building. If the angle of observation is 30°, the ground
1 answer
asked by
Help please
249 views
Find the component vectors.
v=(7i+j) onto w=(4i+j) v_1=? v_2=?
3 answers
asked by
S
366 views
cosx+sinx/cosx-sinx = sec2x+tan2x
2 answers
asked by
Anon
133 views
Find exact value using compound or double angle formula
tan(-15*)
1 answer
asked by
Anon
137 views
(1-tanx^2)/(1+tanx^2)=cos(2x)
1 answer
asked by
Anon
93 views
a) 4+4cos2x=9-3cos2x b)6cos^2x+cosx-3=0
Interval 0<or equal to x <or equal to 2/pi
1 answer
asked by
Anon
113 views
if cosx=-12/13 and tany =8/15, pi/2<x<pi, pi<x<3pi/2 evaluate the following
a) cos(x-y) b)tan2x
1 answer
asked by
David
128 views
Prove this identity.
cos(3π/s +x) = sin x
2 answers
asked by
Amy
101 views
Calculate cos 37.5 using a half angle identity
2 answers
asked by
Alex
119 views
Here is the link to my question:
file:///media/fuse/drivefs-855634b28540e701cc7af81665e2568e/root/Question.pdf
1 answer
asked by
Amy
115 views
If sin(x) = 1/3 and sec(y) = 29/21, where x and y lie between 0 and 𝜋/2, evaluate the expression.
cos(x + y)
1 answer
asked by
Saq2
98 views
A rock that is dropped from the top of the Leaning Tower of Pisa falls to a point 14 feet from the tower base. What angle does
1 answer
asked by
Lee
134 views
Need help with these four questions please and thank you.
1. A kicker makes a 132 foot field goal. The ball passes through the
4 answers
asked by
n
103 views
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