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Trig
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a child puts beads on one spoke of a bicycle wheel. the tire has a diameter of 2ft. if the child rides so that the tire makes
1 answer
asked by
Bailey
360 views
2 vectors at a Right angle to each other are pulling on a bolt. vector 1 = 650; vector 2 = 300 then R = ?
1 answer
asked by
Stone
386 views
2 vectors act on a bolt. vector 1(1200/70 degrees) vector 2(900/205 degrees) then E = ? must show work!
1 answer
asked by
Stone
341 views
Plane leaves airport with heading of 110 degrees at 300 mph, the wing out of the southwest is 42 mph.
locate the plane after 4
2 answers
asked by
Stone
519 views
2 vectors act on a bolt. vector 1(1200/70 degrees) vector 2(900/205 degrees) then E = ? must show work!
2 answers
asked by
Stone
731 views
sqrt(100+(10cotx)^2)
1 answer
asked by
Cam
266 views
sin^2(34)+sin^2(48)+sin^2(56)+sin^2(42)
1 answer
asked by
Cam
301 views
To avoid a steep descent, an airplane flying at 10,000m starts its descent 60km away from the airport. For the angle of descent
1 answer
asked by
Shelley Nicole
426 views
Sum and diffence formula Finding Exact value of Tan 105-Tan 10)-15)/1+ tan(105)Tan(-15)
3 answers
asked by
Jacob
588 views
Solve triangle ABC given the following conditions:
1. C = 135.77 deg, b = 10cm, a = 12cm 2. a = 11.5m, b = 10m, c = 16.94m
2 answers
asked by
Ashley Kate
1,089 views
Use a graphical method to find a solution to the following system of equations in the interval –1 ≤ x ≤ 5:
y = x2 – 4x +
4 answers
asked by
Kiki
542 views
A fan makes 3 revolutions per second. The blades are 21 inches long.
How do I find the angular velocity of a fan blade? in
2 answers
asked by
Anonymous
552 views
If f(x)=cos^2x and g(x)=sin^2x, what is (f+g)(pi/15)
1 answer
asked by
Cora
365 views
A straight road slopes upward 14 degrees from the horizontal. A vertical telephone pole beside the road casts a shadow of 60
2 answers
asked by
Keserie
1,065 views
Verify the given equations:
____1______ + ____1_______ = -2 tanθ tanθ – secθ tanθ + secθ 1 – sinθ = sec2θ – 2 secθ
2 answers
asked by
McKenna Louise
927 views
Prove the following:
1/(tanØ - secØ ) + 1/(tanØ + secØ) = -2tanØ (1 - sinØ)/(1 + sinØ) = sec^2Ø - 2secØtanØ + tan^2Ø
4 answers
asked by
McKenna Louise
1,037 views
A weather balloon is sighted between points A and B which are 5 miles apart on level ground. The angle of elevation of the
3 answers
asked by
Nairb
913 views
A guy wire attached to the top of an electric pole makes a 700 angle with the level ground. At a point 25 feet from the guy wire
2 answers
asked by
Ashley Kate
741 views
Given ∆ABC. If side a is twice as long as side b, is <A necessarily twice as large as <B? Why?
2 answers
asked by
Ashley Kate
685 views
A guy wire attached to the top of an electric pole makes a 70deg angle with the level ground. At a point 25 feet from the guy
2 answers
asked by
Ashley Kate
738 views
The number of values in the interval –π ≤ x ≤ π that satisfy the equation sin x = 2 cos x is
1 2 3 4 0
2 answers
asked by
Kiki
652 views
In ΔABC, a = 19, c = 10, and m∠A = 111. Which statement can be used to find the value of C?
2 answers
asked by
Kiki
994 views
If 0 ≤ x ≤ 2π, which equation is a line of symmetry for the graph of y = cos x?
x = 0 x = 2π x = π y = 0
4 answers
asked by
Kiki
1,827 views
A vertical tower is on a 12° slope. from a 50 m down the hill, the angle of elevation of the top of the tower is 30°. find the
1 answer
asked by
Jeff
505 views
A vertical pole stands on a 20° slope from 50 m down the slope from the pole the angle of elevation of the top of the pole is
2 answers
asked by
Beth
748 views
how do you find the standard form of
7(cos255degrees + isin255degrees) ?
3 answers
asked by
Anonymous
315 views
Force 1= 65 pounds , Force 2=90 pounds
find the angle between the forces? magnitude of the resultant force= 70lbs
3 answers
asked by
Anonymous
460 views
If sec A =5/4 and A is an angle in Quadrant IV, find the value of cos A.
A. -4/5 B.4/5 C.-5/4 Is it choice A
4 answers
asked by
Kiki
1,159 views
Write a quadratic equation whose roots are 5 + i radical 2 and 5 – i radical 2
____ x^2 + _____ x+ ______=0
4 answers
asked by
Kiki
3,165 views
Find the 6th term of the arithmetic sequence with a9=120 and a14=195
4 answers
asked by
Kiki
1,834 views
Find the 20th term of an arithmetic sequence with a=1 and d=1/2
1 answer
asked by
Kiki
363 views
What is the sum of the arithmetic series where n=50 , t1=9 and t2=331
3 answers
asked by
Kiki
791 views
Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x).
12/13 5/13 -12/13 -5/13
3 answers
asked by
Kiki
908 views
Given sin θ = −1/2 and sec θ > 0, find the exact value of tan 2θ.
Radical 3 Radical 3/2 Negative radical 3 Negative radical
2 answers
asked by
Kiki
524 views
Simplify each expression using fundamental identities.
1. Sin theta cot theta 2. 1-sin^2 theta / cos theta
2 answers
asked by
Anonymous
545 views
Use the given information to evaluate sin (a+b). Exact answers only. No decimals.
Tan a = 4/3, cos b ='-12/13; neither a nor b
1 answer
asked by
Anonymous
470 views
Use the given information to evaluate sin (a-b). Exact answers. No decimals.
Sin a = -7/25, cot b = 8/15; neither a nor b are in
2 answers
asked by
Matthew
541 views
Evaluate tan(a-b). No decimals. Only exact answer.
Sin a = -7/25, cot b = -8/15 neither a nor b are in quadrant IV.
1 answer
asked by
Timothy Johnson
407 views
Use the given information to evaluate sin (a+b). Exact answers only. No decimals.
Tan a = 4/3, cos b ='-12/13; neither a nor b
1 answer
asked by
Jason
375 views
Use the given information to evaluate sin (a-b). Exact answers. No decimals.
Sin a = -7/25, cot b = 8/15; neither a nor b are in
1 answer
asked by
Anonymous
370 views
Evaluate tan(a-b). No decimals. Only exact answer.
Sin a = -7/25, cot b = -8/15 neither a nor b are in quadrant IV.
1 answer
asked by
Anonymous
367 views
Use trigonometric identities to solve the equation csc^2x -(√3+1)cotx+(√3-1)=0 in the interval [0, 2pi]
2 answers
asked by
Melissa
556 views
If it helps the answer according to this ACT compass sample test questions print out is 6.93.
How to solve it is the question ...
4 answers
asked by
Joe
415 views
Find a parametric equation for the ellipse. Make sure that the graph of your parametric equation is a complete ellipse.
3x^2+4y^2
2 answers
asked by
Jasmine
782 views
A 24-foot ladder is placed against a building. The building is perpendicular to the level ground so that the base of the ladder
2 answers
asked by
Joseph
1,030 views
You and a friend are rowing a boat 8.5 KPH heading north. A cross current is moving 3.2 KPH at an angle of 38 degrees north of
3 answers
asked by
Kim
455 views
Charo is 50 feet from the tallest totem pole, located in Alberta Bay, Canada, which has a height of 173 feet. If Charo’s eyes
3 answers
asked by
Anonymous
1,551 views
Hi, I would like to ask anyone available a quick question. How would I explain WHY it is that the data/function of average
3 answers
asked by
Lima Bean
512 views
I was wondering, is a sinusoidal function an algebraic model? Or, on the other hand, is there a way to derive an algebraic model
1 answer
asked by
Lima Bean
404 views
The problem is: an airplane is flying in the direction 120 degrees with an airspeed of 320 mph, and a 35 mph wind is blowing in
2 answers
asked by
Morgan
772 views
Find the coterminal angles: one positive one negative angle. 55° and (9(3.14)/5) answer degrees in radians and radians in
3 answers
asked by
Anonymous
1,472 views
Two people decide to find the height of an obelisk. They position themselves 25 feet apart in line with, and on the same side
3 answers
asked by
Harry
2,963 views
Two people decide to find the height of an obelisk. They position themselves 25 feet apart in line with, and on the same side
3 answers
asked by
Anonymous
666 views
A planes actual resulting ground speed and direction are 550 mph and N26E. A wind is blowing from the northeast. If the pilot is
2 answers
asked by
John
712 views
Two planes take off at the same time from an airport. The first plane is flying at 240 miles per hour on a bearing of S 45.0°
4 answers
asked by
Lindy
2,097 views
Verify and identify, I am so confused on how to do this? this is an extra credit but I am lost, please help.
cot(�Ý-ƒÎ/2)=-ta
3 answers
asked by
Maxine
485 views
Find the coordinates of the point at -10 degrees on a circle of radius 2.7 centered at the origin.
Round your answers to three
3 answers
asked by
Collen
1,042 views
I need to the steps to get (1-sinx)(1+sinx)=cos^2 x
1 answer
asked by
Jaime
326 views
House B is located at a bearing of N67°E from house A. House C is 370 meters from house A at a bearing of S68°E. House B is
2 answers
asked by
Kate
1,099 views
Determine the intervals of continuity of f(x)= ln(sin(x))
I looked at the graph and I have no idea how to state the intervals.
2 answers
asked by
Jet
727 views
the angle of elevation to the sun is 65 degrees. A building casts a shadow 16m long. What is the height of the building to the
4 answers
asked by
Julia
2,286 views
Jane has a bike with a 22-inch rear wheel. The wheel sprocket is 3 inches in diameter and the pedal sprocket is 4 inches in
4 answers
asked by
Dan
697 views
Two tracking stations are on the equator 161 miles apart. A weather balloon is located on a bearing of N 32°E from the western
3 answers
asked by
Nicole
1,329 views
Find the magnitude and direction angle for each vector. Give the measure of the direction angle as an angle in [0,360].
<5sqrt2,-
2 answers
asked by
Freddie
782 views
I need help with my vectors unit. I'm really confused about how to set them up. Please help.
a.) Given u=2i-5j and v=-i+3j,
3 answers
asked by
Alexis
517 views
Does this result in no triangle, 1 or 2 triangles? If so, then solve.
B= 88 degrees, b= 4 and a=23. I know that A= (sin
3 answers
asked by
Amber
578 views
Determine exact solution. x E (0, 2pi)
2csc^2x-8=0
3 answers
asked by
Zoe
717 views
I need help setting these up.
1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces
4 answers
asked by
Derrick
5,233 views
A jet is 115 mi east and 88.3 i north of Niagara Falls. What is its displacement from Niagara Falls?
2 answers
asked by
Erica
727 views
Verify each trigonimetric equation by substituting identities to match right hand side of the equation to the hand side of the
2 answers
asked by
Nancy Jones
490 views
What is the period of f(x)=sin4x. I got pi/2 but on my answer list, it is not on there.
a.4pi b.2pi c.pi d.1/2pi Which one would
1 answer
asked by
Anonymous
379 views
How do i solve sinx/cosx(sinx+cosx/sinx×cosx)=secx?
I know it's 1/cosx because it equals secx but I don't know how to get there?
4 answers
asked by
Jodi
583 views
Bob the ranger is atop a fire tower that i son the side of a mountain.The fire tower is 10 meters high and the angle of
2 answers
asked by
Jordyn
666 views
A pendulum swinging through a central angle of Ts completes an arc of length 6.4 cm. What is the length of the pendulum?
2 answers
asked by
Laura
540 views
How do you derive this identity?
Cos(t)=1-sin^2(t/2)
1 answer
asked by
Jean
413 views
An isosceles triangle has legs 4 feet long. If the vertex angle measures 30 degrees, find the length of the base.
3 answers
asked by
Anonymous
652 views
Prove that : (Sin Ө + Cosec Ө)/(Tan Ө+Cot Ө) = Sin Ө + Cos Ө
4 answers
asked by
Someone
1,309 views
Can you please help with this trig question:
The angle of elevation to the top of a nearby mountain is 46 degrees. After walking
2 answers
asked by
Cassandra
669 views
Please help with this question:
A plane travels a distance of 140 km due west of Vancouver International Airport. It then travels
2 answers
asked by
Cassandra
658 views
The graph of y-7 cosθ + 24 sinθ would be a sinusoid if it were plotted. What would be the first positive value of θ at which
4 answers
asked by
Elle
487 views
If tan x = -sq rt3/3 and cos x = -sq rt3/2, the measure of <x is?
1 answer
asked by
Patti
362 views
secθsinθ is equivalent to:
Ans: tanθ?
2 answers
asked by
Anonymous
765 views
Find each value if sin A = 12/13 with 90 degrees <= A <= 270 degrees and if sin B = -7/25 with -90 degrees <= B <= 90 degrees.
si
2 answers
asked by
Anonymous
771 views
Find sin(s+t) and (s-t) if cos(s)= 1/5 and sin(t) = 3/5 and s and t are in quadrant 1.
=Sin(s)cos(t) + Cos(s)Sin(t)
4 answers
asked by
Sally
4,949 views
Two pilots take off from the same airport. Mason heads due south. Nancy heads 23 west of south. After 400 land miles, how far
3 answers
asked by
Anonymous
510 views
Solve the equation for the given domain.
4cos^2 θ = 1 for 0 to 360 degrees. I get 60, 120, 240, and 300. Are these correct? If
3 answers
asked by
Anonymous
520 views
Solve each equation for the given domain.
cos^2 theta + cos theta - 1 = 0 for 0-180.
2 answers
asked by
Anonymous
503 views
Which is cos2 theta if sin theta = -2/sqrt13 and 180 < theta < 270?
1. -(13/5) 2. -(5/13) 3. 5/13 4. 13/5 3?
2 answers
asked by
Anonymous
488 views
For 90<theta<180, cos theta = -(5/13). Which is sin theta?
1. - sqrt 13/9 2. - sqrt 9/13 3. sqrt 9/13 4. sqrt 13/9 3?
5 answers
asked by
Anonymous
389 views
Find sin2theta, cos2theta, and tan2theta for costheta = -12/13 in pi < theta < 3pi/2.
My answers: 20111/24336 for tan2theta.
5 answers
asked by
Anonymous
2,071 views
Prove the identity:
(sin(2x-y)+siny)/(cos(2x-y)+cosy )=tanx
1 answer
asked by
Alexa
396 views
Write an algebraic expression for the following:
sin(arctan〖(x+1)/(x-1)〗 )
2 answers
asked by
Alexa
509 views
Algebraically find the value of: 10 cot(cot^(-1)3+cot^(-1)7+cot^(-1)13+cot^(-1)21 )
3 answers
asked by
Erikhelp
432 views
What is the value of tanx given that sinx+cosx=1/5 and π/2<x<π ?
1 answer
asked by
Erikhelp
333 views
Solve, algebraically or with justification (no graphing calculator solutions allowed), the following equation:
1 answer
asked by
Alecs
413 views
cos 13 pi = ?
3 answers
asked by
Anonymous
450 views
Find all solutions of the equation in the interval [0,2pi). 2sin theta+1=0.
Write answer in radians in terms of pi.
3 answers
asked by
James
3,637 views
Evaluate the following expression:
sin(cos^-1(12/13)) tan(sin^-1(3/5)) I do not know what the inverse values would be...how would
1 answer
asked by
Lillian
460 views
The foot of a ladder is on level ground 1.5m from a wall. The ladder leans agents the wall. The angle formed by the ladder and
4 answers
asked by
Emily
1,745 views
Having completed another stimulating school day, Michael and Alyssia both leave at the same time. They walk together for a while
3 answers
asked by
Anon
368 views
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