Trig check my work please?

90,437 results, page 70

  1. trig

    Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
  2. trig

    Suggest a sine function that will "imitate" the cosine function by manipulating ONE of a,b,c or d. Thank you
  3. trig

    Suggest a cosine function that will "imitate" the sine function by manipulating ONE of a,b,c or d. Thank you
  4. trig

    Find the exact value of cot 45°, if the expression is undefined write undefined.
  5. trig

    If A+B+C=^(^=180) prove that sinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2
  6. Trig

    triangle with side lengths 172m, 155m, and 155m. calculate the area.
  7. trig

    DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0
  8. trig

    Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx))
  9. Trig

    Solve the equation in the interval [0•,360•] Csc theta = 1+cot theta
  10. trig

    explain the methid used to get the answers 45m*cos33=37.7m and 45m*sin33=24.5
  11. Trig

    How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?
  12. trig

    i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25
  13. trig

    the question is: given sec x = 4, tan x < 0, find sin(2x), cos(2x)and tan (2x)
  14. Math/Trig

    Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.
  15. trig

    prove the identity sec^2x times cot x minus cot x = tan x
  16. trig

    if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1
  17. trig

    convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.
  18. trig

    Verify the equation is an identitiy: cot(x)tan(x+pi) - sin(pi-x)cos((pi/2)-x) = cos^2x Thanks
  19. trig

    The tangent of an acute angle equals 1/2. What is the sine of the angle? (A) 1/p3 (B)p5/2 (C) 2/p5 (D) 1/p5 ( E) None of the above.
  20. trig

    5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y?
  21. trig

    How do I solve.... Tan 2(theta) - Cos 4(theta) = 0 Domain: (0-360 degrees) Thank you.
  22. Math/Trig

    Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L
  23. trig

    solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð 3cos^2theta - 5costheta -1 = 3sin^2theta
  24. trig

    given cot-A square root of 5, find cot-B at the 4th quadrant.
  25. TRIG

    Given that tanx = 1/sqr(15) and secx -4/sqr(15) find the value of sinx
  26. trig

    if tan x= 4/3 and pip < x < 3pi/2, and cot y= -5/12 with 3pi/2 < y < 2pi find sin(x-y)
  27. Precalculus with Trig

    Rewrite the following expression as an algebraic expression in x: cos(arcsin(x))
  28. math trig

    a triangle abc has a mearsure of an adjacent 15 and 25 degree solve for the triangle
  29. Pre-Calc/Trig...

    Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7
  30. Pre-Calc/Trig...

    Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2
  31. Pre-Calc/Trig

    How would I solve this one? I just can't get this one. 6x^2+11x-35=0
  32. trig

    solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b
  33. trig

    A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road?
  34. Trig

    Find the algebraic expression that is equal to sec theta - cos (-theta)
  35. Trig

    Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.
  36. Math (Trig) lowering powers

    If cos^4(3x)-sin^4(3x)=cos(g(x)) then g(x)=? Use a^4-b^4=(a^2-b^2)(a^2+b^2)! thanks in advance for any help!
  37. trig

    if sec theta =sqrt -20/3 state the exact value of tan theta
  38. physics

    Please check my work here: Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. The circuit voltage is 180 volts. Find: a)the voltage of the parallel circuit b)the voltage across the parallel circuit c)the current through the 10...
  39. Chemistry

    three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic centimeter (cm^3) or cc.). ...
  40. Philosophy

    Can someone please check my answers if it is right. Thank you! True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. -FALSE 2. For the members of the Flat Earth ...
  41. college alg

    for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 (they look like fractions) A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work
  42. English

    Please check my answer thanks :) In which sentence could you best use a semicolon? 1. If you ask me Jerry is a tennis whiz. 2. Lucy bought a new tennis racket and brought it home. 3. Sue loves tennis she plays everyday 4. When she is worried Mary eats a lot. I picked #3
  43. Pre-Algebra

    Can I have someone check this please? I wouldn't want to do the whole page, then find out I had done them all wrong. :( [Percents of Change] A $100 digital watch is now $72 Decrease, 72/100 = negative percent. 100/72.00 = .72 .72 - 1 = 30%? Thanks. 30% is my final answer, ...
  44. Social studies

    Arrange the following legislation that was passed after the Civil War in the proper chronological order: I. Reconstruction Act. II. Wade-Davis Bill. III. Fifteenth Amendment. IV. Compromise of 1877. A. I.,II., II., IV. B. I., II., IV., III. C. II., I., II., IV. D. III., IV., ...
  45. GIVE ME A JOB

    WHY CAN`T KIDS WORK? Here is something that may be interesting to you and provide some answers to your question. (Broken Link Removed) Because if they were alowed to work they would be exploited like they used to be.
  46. statistics

    a recent poll of 700 peole who work indoors found that 278 of the smoke. If the researchers want to be 98% confident of thier results to within 3.5% how large a sample is necessary? how do i work this problem?
  47. Business Management

    Which of the following is not a factor that affects how work is organized? A. Mangement style B. Customer influences C. Company size D. Competitor work styles I ruled out C. & D., but need help with the others.
  48. identifying a gas (check partial work)

    A cylinder was found in a storeroom of a manufacturing company. The cylinder was so old that the label had fallen off, and no one remembered what the cylinder held. A 5 mg sample was found to occupy 4.13 mL at 23 Celsius and 745 torr. The sample was also found to be composed ...
  49. social studies(check answers)

    please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
  50. Physics

    Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...
  51. Physics

    Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...
  52. Physics

    Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...
  53. Physics

    Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...
  54. Physics

    Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...
  55. chemistry/check my work I have to submit today

    When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the individual volumes and that density and specific heat ...
  56. Physics

    A 285-kg load is lifted 22.0 m vertically with an acceleration a=0.170 g by a single cable. Determine the tension in the cable. (N) Determine the net work done on the load. (J) Determine the work done by the cable on the load. Determine the work done by gravity on the load. ...
  57. history

    Please check my work: 1.Diplomatic immunity is based on what assumption a.diplomats will become active members of their new communities b.diplomats will obey the laws of their country of residence c.diplomats have no restrictions on behavior d.Diplomats will be isolated in the...
  58. home work help please

    Complete the Multiple Pathways to Learning assessment and the Personality Spectrum assessment. Relate results to your personal study habits. Prepare a 350- to 700-word paper where you answer the following questions: · How may you use the study techniques recommended for your ...
  59. Math (Trig)

    Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2
  60. simplyfying expressions (trig)

    can anyone tell me how to do this? thanks! (sin (x) / 1 + cos (x) ) + ( cot (x) / 1 + cos (x) )
  61. Algebra II/Trig

    Simplify: 1/5(-5a^2b^3)^2(abc)^4 How do you simplify this. How does the "-5" play a role in this? how would you get 1/5 of "-5"
  62. 11th grade Algebra 2/ Trig

    The expression log 10^(x+2)- log 10^x is equivalent to???
  63. trig

    unsure how to find phase shift,vertical shift of y=-2cos(x+3.14/4)+5
  64. trig

    determine the coterminal angle between -360 and 360 for -540
  65. trig

    How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8
  66. trig

    How do you convert polar coordinates to Cartesian coordinates? And vise versa.
  67. trig

    tan(theta)=(7/24), sin(theta)<0 find cos(2theta)
  68. Trig

    Tan theta 12/5 ,pi <theta<3pi/2 Find sin 2theta
  69. trig

    If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =
  70. trig

    Plot the point and then find three representation of the point (3,2pi/3)
  71. trig

    Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).
  72. trig

    let sin theta = -7/25 with theta in QIV find sec (2theta)
  73. trig

    True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.
  74. trig

    angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)
  75. trig

    an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.
  76. trig

    how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0
  77. trig

    Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α
  78. trig

    Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?
  79. trig

    Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2
  80. trig

    1.Ifg(x)=cos4x,find g'(pie/24). 2.Differentiate y=csc^2 pie*x
  81. trig

    To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25
  82. Trig

    Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi
  83. trig

    A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13
  84. trig

    Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx
  85. trig

    Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25
  86. trig

    If csc theta = 2, then what is theta approximated to 4 decimal points? RADIANS
  87. math/cal/trig solve for t

    solve for t: 0=4sin(2t)cos(2t)-sin(2t)
  88. trig

    If sec theta = radical 5, what is the exact value of cos theta
  89. trig

    If sec theta = radical 5, what is the exact value of cos theta
  90. trig

    find the single term of cos^2 4theta - sin^2 4theta
  91. Precalc/Trig

    Find all values of x, 0<x<(pi/2) for which (1/( root 3))<cotx<(root 3)
  92. trig

    Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?
  93. Trig

    The point P(3, 4) is on the terminal side of θ. Evaluate tan θ. 3/4 3/5 4/3 4/5
  94. Trig

    How do I prove that tan(x/2) =( plus/minus) sqrt(1-cos(x/1+cos(x))
  95. Trig

    Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.
  96. Trig

    Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x
  97. Advanced Functions/Trig

    Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)
  98. trig, math

    In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?
  99. trig

    Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0
  100. math trig

    a triangle has a measured of hypoteneuos 15 and an adjacent of 10 solve for the triangle.
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