4,413 results, page 16

  1. Trig

    Find the 6th term of the arithmetic sequence with a9=120 and a14=195
  2. Pre-calc/Trig...

    which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
  3. Pre-Calc/Trig

    y=-x^2+5x+36 converting into intercept form is this the correct answer? y=(x+9)(x-4)
  4. Trig/Pre-Calc

    Solve the polynomial equation. 15x^3-119x^2-10x+16=0
  5. trig

    solve each equation if 0 < x < 2pi. answer must be in radians 1. 4 cos x - 2 = 0 2. 3 sec^2 - 4 = 0
  6. Pre-calc/Trig

    For each parabola, tell in which direction the graph opens. x= 1/2y^2 y= -1/24x^2
  7. trig help

    Find the equation of the hyperbola satisfying the given conditions. Vertices at (5, 1) and (-7, 1); asymptotes (y - 1) = 1/3(x + 1) and (y - 1) = -1/3(x + 1)
  8. trig plz help

    Solve, finding all solutions in the interval [0, 2π). tan(3x) = -1
  9. Trig

    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.
  10. Math

    Find the exact value of the trig function below. cos2Ø if sinØ = 2/5
  11. alg

    simplify: sqrt (6/11) a) sqrt (66/11) b) 6 c) 6 sqrt (11/11) d)6 sqrt (11)
  12. alg

    Solve for u: u − 2/ u − 4 + 6 = u + u − 6/ 4 − u
  13. Algerbra 2

    I am doing a worksheet for my alg. 2 class and in the worksheet it says: 'Simplify the expression. Assusme all variable are positive.' the problem is perentheses, square root of six times the power of 3 square root of six perentheses power of six!
  14. Alg 1

    The largest town square in the world is Tiananmen Square in Beijing, China, covering 98 acres. A. 1 sq mile is 640 acres. Assuming that the Tiananmen Square is a square, how many feet long is a side to the nearest foot? B. To the nearest foot, what is the diagonal distance ...
  15. alg

    consider the model y=4/9x + 7/3 for the relation between price and quality of chewing gum. a) what does the slope mean? b) use this equation to predict the likely rating of gum which costs 8 cent a stick c) according to this equation what would a chewing gum with a rating of 3...
  16. Trig

    Use the half angle formula to find the exact value of tan 7 pie/8
  17. Trig

    Solve the equation on the interval 0 less than or equal 0 < 2pi. 1. sec 30/2 = -2 2. cos(20 - pi/2) = -1 3. tan(0/2 + pi/3) = 1
  18. trig

    transform the expression on left to one on right csc x-sin x to cot x cos x
  19. Trig

    Hi. Can somebody help me solve this equaton with EXACT answers? ----- sin3x = 0 ----- Thankyou! All help is appreciated.
  20. Trig

    Find the exact value of: sin405. reference angle=225 sin225= -.707106781 = -.71
  21. trig

    Write an expression that gives all solutions to the equation sin x + cos x = - radical 2
  22. trig

    Give an equation of a cosine function of x which has a phase shift along x of 5 units and an amplitude of 4
  23. trig

    Give an equation of a cosine function of x which has a phase shift along x of -1 unit and a wavelength of pi/3
  24. trig

    simplify and write the trigonometric equation in terms of sine and cosine. tan^2x-sec^2x
  25. Algebra2/Trig

    Evaluate the indicated function for f(x)=x2+1 and g(x)=x-4 Note: x2+1 means x squared plus one. (2f)(5)
  26. trig

    Find cosq and sinq if the terminal side of q lies along the line y = - 2 x in quadrant IV.
  27. trig help again i cant get any of these

    sin^4cos^2x=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!
  28. math

    how would you solve for x: (3)^.5sin(2x)-2cos(2x)+2sin^2(x)=1 using trig identites. please help
  29. Trig....

    use specific triangles and the unit circle to geth the values. tan(5pi/6?)
  30. Trig

    Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?
  31. trig

    Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.
  32. trig

    Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1
  33. grade 12 trig

    If cos A-1=0, where 0<or= A< 2pi, then A=? The answer I got was pi/3,5pi/3. I don't know where I went wrong can you please help. thanks
  34. math

    The terminal side of theta is in Quadrant III and lies on the line y = 2x. What are the 6 trig functions?
  35. trig

    Which basic trigonometric function has the same graph as y= -cot(x+(pi/2)).Please justify your answer.
  36. trig

    evaluate the following without using a calculator and please explain how cos(arctan 3)
  37. Algebra 2/trig

    How would I calculate the following function value? tan = 29degrees 36feet

    solve the equation 2 sec x- tan x = cot x for the interval 0 to 360 please:)
  39. trig

    Write the following equation in standard form and identify the type of conic: 9y^2 - 4x^2 + 8x + 18y + 41 = 0
  40. trig

    Find the 6 trigonometric function of teta if it's terminal side passes through the point(1,2)
  41. trig

    on the same set of axes sketch the graph of f(x)=sin2x and g(x)=2sin x for x (o,180 degrees)
  42. trig

    Given tan A = .29 find the angle A in degrees. Round your answer to the nearest hundredth.
  43. Trig

    Find the general solution for the equation 4tanx+cotx=5?????? and the steps please? THANYOO!
  44. 12th grade Trig

    What are the period and 2 consecutive asymptotes? 1. y= -3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3
  45. trig

    find exact value using sum or differnce equations. tan(19pi/12)
  46. Trig

    Determine the frequency of y = 2 �� 3 cos 10x. (nearest tenth) Please help!
  47. Math/Trig

    Find two exact values of sin(cos­­ˉ¹ √5/6)
  48. Math/Trig

    Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.
  49. Math/Trig

    Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
  50. Math/Trig

    Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
  51. trig

    Find the altitude of an isosceles triangle whose base in 30 cm vertex angle is 75 degres
  52. trig

    2 cosine squared pi over 8 minus 1 find exact value of given expression
  53. trig

    use a sum or difference identity to find an exact value cos pie/12
  54. trig identies 5.3 &5.4

    use a sum or difference identity to find an exact value pie/12
  55. identities trig?

    find all solutions to the equation in the interval [0,2pie] cos2x=cosx
  56. trig

    angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.
  57. trig

    use a half angle formula to find the exact value of cos 75 degree
  58. trig

    A sine wave function f(x) = a sin(bx) has amplitude 10 and period 40. What are the values of a and b? (A) a = 10 and b = 20/pi ( B) a = 10 and b = 1/40 (C) a = 10 and b = pi/20 (D) a = 10 and b = 40 E) None of the above.
  59. Trig

    Use a cofunction to write an expression equal to csc(4ð/11). I need help solving this problem. Thank You
  60. Algebra 2 / Trig

    Given cos X = -0.147, find two possible values for X that are not co-terminal.
  61. Trig

    find cos x/2, sin x = 1/4, 360 < x < 450, use half-angle identity
  62. trig

    find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0
  63. Trig

    Find the amplitude, period, and phase shift of the following function: y=-2cos2(θ+45)
  64. Trig

    A car is traveling at a speed of 55 mph with a bearing of 210°. What vector represents the velocity?
  65. trig

    find a value of interval in degrees cotalpha=1.3692847 alpha=0.023903 is that correct?
  66. trig

    Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.
  67. trig

    evaluate the expression below at t=4 p=$400 and r=-9% round youre answer 2 decimal place
  68. trig

    Find the exact value by using a half-angle identity. cos 22.5 degrees
  69. Trig

    Find the exact value of tan 5pi/12 using the half-angle identity.
  70. trig

    write equations expressing: 19cos(theta-50degrees) as a sum of sine and cosine.
  71. trig

    write an equation expressing 19cos(theta-50degrees) as a sum of sine and cosine.
  72. trig

    if the terminal ray of an angle 0 in standard position passes through the point (-1,3),then cos0=
  73. trig

    I have a couple of these and cannot locate directions I can understand-please help! Draw the graph of y=3cos(2x) for 0< or= x < or = 2 pi

    I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0
  75. trig

    The minute hand of a clock is 6 inches long. What distance does its tip move in 16 minutes?
  76. trig e-maths

    giving that cosx=4/5 and siny=12/13, find cos(x+y) when x is acute and y is obtuse angle
  77. Trig-desperate

    f(x)=sin2x and g(x)=1/2tanx for x is the element of [-90;180] 8.1)calculate the x-coordinates of the points of intersection of f and g.
  78. Trig

    How do you find the exact circular function value of csc(-23pi/6)? I don't know how to do the pi symbol on the keyboard.
  79. trig

    a voltmeter's pointer is 3 cm in length. find the degrees through which is rotates when it moves 1.1 cm on the scale?
  80. Trig

    There is an airplane at an altitude of 12000 ft. The angle of depression is 1 degree. How far on the ground is the plane.
  81. trig

    Find the following values for each function a. f(0) b. f(-1) c. f(-x) d. f(x+1) f(x)=2x^2+3x-4 I you plug in the value for each x, I just want to check my answers. Thanks.
  82. Trig

    Let f and g be two invertible functions such that f^-1(x)=5/x+4 and g(x)=4(x-2). Find f(g(5)). Show your steps please so I can see how to do it. Thank you! :)
  83. trig

    Use an addition or subtraction formula to simplify the expression: tan(2−u)=cot(f(u)).
  84. TRIG

    show that cos(pi x) = pi cosx is not an identity by finding a single value of x for which it fails to hold.
  85. math

    (-3/5, 2) is a point on the terminal side of theta, find the value of the six trig functions
  86. trig

    the mini tent of the clock is 5 cm far is the tip of THE HAND TRAVEL IN 35 MINS.
  87. Math-Trig

    Find all angles in degrees that satisfy each equation. tan(a)+rad3=0
  88. trig

    Solve exactly over the indicated interval: 2sinx+cscx=3, 0<theta<360
  89. math trig

    If a ferris wheel has a radius of 20.5meters, how tall would a 45 degree angle be?
  90. trig

    for the given angle, name the quadrant in whihc the terminal side lies. -350deg
  91. trig

    Find all real numbers in [0, 2π) that satisfy the equation. cos 2x = √(2)/2
  92. trig

    Find all values of ¸ in [0°, 360°) that satisfy the equation. 2 sin 2θ - √(3) = 0
  93. Math - Trig

    Explain why we cannot solve an oblique triangle with the Law of Sines given SAS.
  94. trig

    If $5000 is invested at a rate of 3% interest compounded quarterly, what is the value of the investment in 5 years?
  95. Trig

    given that sinx=3/4 and cosy=-5/13 and both x and y are in quadrant II, find the exact value of cos(x-y)
  96. Inverse Trig

    How do I simplify arcsin (sin 6 pi) given the interval 0 ≤ theta < 2pi
  97. trig

    Given that cos A = 5/13 and A and B are both acute angles, calculate the value of Sin2A and Cos2A
  98. Pre-Calc/Trig...

    am i correct? What is the axis of symmetry for the graph of y=2x^2-4x+2? x=? the line goes through 1? x=1
  99. Pre-Calc/Trig...

    Help me please. Solve the equation: (x-3)(x+2)=0 Enter the solution with the lowest value.
  100. Trig

    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)=-tan Ý
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