alg/trig

4,413 results, page 17

  1. trig

    Find all angles è between 0° and 180° satisfying the given equation. cos è = 1/9
  2. calc/trig

    A 84-ft tree casts a shadow that is 130 ft long. What is the angle of elevation of the sun?
  3. Pre-Calc/Trig

    Describe the end behavior for function by writing a limit expression. f(x)=2x^5-x+7
  4. trig

    prove that the equation 2sin x cos x +4cos^2 x =1 may be written in the form of tan^2 x -2tan x -3=0
  5. Pre-Calc/Trig

    write an equation of the conic section: a hyperbola with vertices (0,-6) and (0,6) and asymptotes y=(3/4)x and y=(-3/4)x
  6. trig

    find the exact value of each expression. do not use a calculator. Sec 3.14/4 + 2 csc 3.14/3 4 + tan 2*3.14/3
  7. Purdue Trig

    A spherical balloon is being inflated so that radius is increasing at a rate of 10 mm/sec.
  8. trig

    half angle formula to find exact value cos 112.5 degree
  9. MAth Trig

    Find the diameter of a circle with an arc length of 32 cm and a subtended angle of 72 degrees
  10. Trig

    Find the approximate value of cot θ​, given that csc θequals=3.5891420 and θ is in quadrant I.
  11. Trig

    In which quadrant would the image of point (5,-3) fall after a dilation using a factor of -3?
  12. Alg

    A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
  13. Alg

    A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
  14. Math/Trig

    From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are 6 degrees and 13 degrees respectively. The points and the tower are in the same vertical plane and the ...
  15. alg.

    Write the equation of the line that passes through point (2, –6) with a slope of –5. I think this is a pretty easy problem, but I'm making it out to be harder than it really is. here is what I got: y=mx+b -6=-5(2)+b -6=-10+b =10 =10 b=4 the equation that I got is: y=-5x+4 ...
  16. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation x^3-6x^2+2x-13 How do I...
  17. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation x^3-6x^2+2x-13 How do I...
  18. Calculus

    so we are doing integrals and I have this question on my assignment and I can't seem to get it, because we have the trig substituion rules, but the number isn't even so its not a perfect square and I just cant get it, so any help would be greatly appreciated. The question is...
  19. Pre Alg (Check my work?)

    1.) In which Quadrant is the point (x,y) located if x is negative and y is positive? II III IV (MY ANSWER) I 2.) Point A(5,-10) is reflected over the Y axis. Write the coordinates of A'. (-8,-10) (8,10) (8,-10) MY CHOICE (-8,10) 3.) At the half-tame show, a marching band ...
  20. Alg 1

    You have 60 megabytes of space left on your portaable media player. You can choose to download song files that use 3.5 megabytes or video files that use 8 megabytes. You want to download at least 12 files. What is a graph showing the numbers of songs and video files you can ...
  21. Pre-Calc

    Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse. The measure of side a= 2, side b= 7, and side c= 7.3 How do you find the angle measure of A and B based on the lengths of the sides? SinAngleB...
  22. Trig

    use a graphing utility to solve each equation, rounded to 2 decimal places 1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x
  23. trig

    Use half-angle formulas to find the exact value for the following cot 75 degrees
  24. trig

    Give an equation of a sine function of x which has a phase shift along y of -2 units and a wavelength of 3pi
  25. trig

    Find a polar equation of this conic with focus at the pole and the given eccentricity and directrix. e=2, r cos X =-1
  26. trig

    solve for x 6tanx - 4sinx = 1 i tried it but got a quartic formula :S 16sin^4x + 8sin^3x + 37sin^2x - 36 = 0
  27. trig

    Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help sin (-pi/12)
  28. Trig

    I was just wondering if anyone can explain the Law of Sines- "Ambiguity Case" to me, in a way that is easy to understand.
  29. trig

    write down the value (corect to three decimal places of:- a) sin64= b) tan21= c) cos67.4=
  30. Trig.

    Why is the arctan of (- square root of 3) 5 pi/6. How come it isn't broken down to 5 pi/3 since I got 10 pi/6 and that reduces to 5pi/3
  31. Trig

    How do I find all solutions in the interval [0, 2Pi): cotx=cscx-1 the answer choices are: a.) x=Pi/2 b.) x=Pi/2 and 3Pi/2
  32. trig

    which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane
  33. trig

    which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane
  34. math, trig

    What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you
  35. trig

    find, to the nearest degree, the solution set of 4 cos^2x-1=0 in the intervak between )degrees and 360degrees.
  36. trig

    ind, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees
  37. trig

    find the exact value by using the appropriate half-angle identity: sin(5pi/12)
  38. trig

    find the 5 other thrig functions if cos(theta) = square root of 2/2 and cotangent is less than 0
  39. Trig

    Determine the roots of the function f(x)=-2cos(3x)-1. Can you please show all the work so it is easier to understand, thank you!!
  40. trig

    how to do the calculation while taking 'A' as 15 in the half angle formula used for calculating the value of sin 7.5 ?
  41. Trig math

    how to split up using sum and difference identities cos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million
  42. trig

    Find altitude of isosceles triangle if angle=53 degrees (the equal angles) and the base is 8 inches.
  43. Math/Trig

    Write an equation for a cosine function with an amplitude of 2/3 , a period of pi, and a vertical shift of 2 units up.
  44. Pre-Cal: Trig

    The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).
  45. Pre-Cal: Trig

    The point (7,2) determines a position angle "t". Find the exact value of sin(t).
  46. trig

    How do I find the exact value of sin2x when secx is equal to the negative square root of three
  47. trig

    given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
  48. trig

    A right triangle has sides of length 5, 12 and 13. What is the sine of the angle opposite the hypotenuse? (A) 1 (B) 5/12 (C) 5/13 (D) 12/13 (E) None of the above.
  49. trig

    simplify (sec^2x + csc^2x) - (tan^x +cot^2x) to either a constant or a basic trigonometric function.
  50. trig

    Find the exact value of the trigonometic function at the given real number of cot(5pi/3)
  51. Pre-calculus

    find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).
  52. trig

    All solutions in interval [0,2pi) of cosine theta plus one equals zero
  53. trig

    All solutions in interval [0,2pi) of cosine theta plus one equals zero
  54. trig

    If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta
  55. Math- Trig

    In an oblique triangle ABC, A=30 degree, and the perpendicular from C to AB is 12 inches long. Find the length of AB.
  56. Trig

    Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above
  57. Trig

    If sin = 2/3 and is a second quadrant angle, determine the exact value of sec^2 could be a. 5/9 b. root5/3 c. 9/4 d. 9/5 Please help.......
  58. trig

    if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?
  59. alg2/trig

    what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.
  60. trig

    Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37
  61. trig

    Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)
  62. trig

    If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA
  63. trig

    What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?
  64. trig

    use the discriminant to solve for the smallest value of b that would make the roots of the equation x^2+bx+5=o imaginary
  65. trig

    Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
  66. trig

    Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
  67. college Calculus Help!

    Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
  68. college Calculus Help!

    Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
  69. Trig Proofs!

    I'm having trouble solving this proof. Can you help? cos^3+sin^3/cosx+sinx = 1-sinxcosx Thanks!:)
  70. Trig.

    finnd a possible measure of the angle drawn in standard position that passes through the points (ã2,-ã2)
  71. trig

    SOlve over (2,pie) and find the general solution in radians. 2sin3x = square root of 2
  72. algebra-trig help asap

    Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)
  73. algebra-trig help asap

    Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)
  74. trig

    Consider the trigonometric function f(t) = -3+4cos(pi/3(t-3/2)) What is the amplitude/period of f(t)? What are the maximum and minimum values attained by f(t)?
  75. trig

    If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.
  76. trig

    solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1
  77. Precalc/Trig 1

    What equation would you use to show that the point ((square root of 11)/(6), (5/6))is on the unit circle?
  78. trig

    Suppose that the point (x,y) is in the indicated quadrant. Decide whether the given is positive or negative. 25.) II, x/r 26.) III, y/r 27.) IV, x/y
  79. trig

    (sec^2x-1)(csc^2x-1)=1 prove the following identity ive been stuck on this for hours please help
  80. Trig identities:(

    Sin4A - cos4A = sin2A - cos2A Can i just square root the left side??:O
  81. trig

    solve exactly over the indicated interval: cot(theta)=0, all real numbers
  82. MATH -

    Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
  83. Math Help

    Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
  84. trig

    use an identity to write the expression as a single trignometric function. squ root 1-cos48°/2
  85. trig

    Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i
  86. trig

    use a half-angle identity to find the exact value of tan 105 degrees.
  87. Trig

    How do you solve this problem? y = 2sin 3x + 4sin 2x I haven't done these types of problems for awhile and have forgotten how to do them.
  88. trig

    A and B are positive acute angles. if sin A=4/5 and cos B=8/17 find the value of tan (A-B) is the answer =43/100
  89. Pre-Calc/Trig

    Helpp please State the domain and range of each of the following functions: 1. f(x)=1/(x+3) 2. g(x)=√x+6 3. h(x)=x^3+2x+5
  90. Math (Trig)

    Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
  91. Pre-Calculus/Trig...

    Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
  92. Pre-Calc/Trig...

    Am i correct? A vertical shift is an example of a non-rigid transformation. True
  93. Pre-Calc/Trig

    I have looked this up, but still cant figure out what it is.. What is the projectile motion function?
  94. Pre-Calc/Trig...

    Help me please Is the given linear expression a factor of the polynomial? Show work. f(x)=2x^3+x^2-5x+2; x+2
  95. Pre-Calc/Trig

    Help me please. List all possible rational zeros for the polynomial function. p(x)=3x^3-2x^2-5x-2
  96. Pre-Calc/Trig

    Identify the asymptotes, removable discontinuities, and intercepts for the graph of the function. d(x)=(x^2-12x+20)/3x
  97. Pre-Calc/Trig...

    Which of the following could be an example of a function with a domain (-oo,oo) and a range (-oo,2)? Check all that apply. A. y= -(3)^x+2 B. y= -(3)^x-2 C. y= -(0.25)^x+2 D/ y= -(0.25)^x-2
  98. Trig

    Find the arc length of a circle that has a central angle of 270 degrees and a radius of 10 yards.
  99. Trig

    Find the length of a chord intercepted by a central angle of 25 degrees in a circle of radius 30 feet
  100. Trig Question

    Find solutions of the following equation which lie in the interval [0,2pi): 6cos(3theta)/(2)+3=0
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