Trig check my work please?

89,826 results, page 65

  1. Math trig.

    find the length of the arc intercepted by a central angle of 35 degree 28' in a circle of radius 15ft....i cant figure out how to get it ??
  2. trig

    Solve for ¥è in the equation tan ¥è = 2.42 when 180¨¬ < ¥è < 360¨¬. Round your answer to the nearest tenth of a degree. (Enter only the number.)
  3. precalc/trig

    Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45
  4. trig

    Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point
  5. Trig-Algebra help asap

    The adjacent sides of a parallelogram measure 8 cm and 12 cm and one angle measures 60 degrees. Find the area of the parellelogram.
  6. Trig

    A ferris wheel at the fair has a radius of 60 feet. If it takes 24 seconds to make a full revolution, what is the linear speed for the passengers?
  7. Trigonometry

    Simplify the expression using trig identities: 1. (sin4x - cos4x)/(sin2x -cos2x) 2. (sinx(cotx)+cosx)/(2cotx)
  8. Precalculus/Trig 6

    Find the exact value of the following trigonometric functions: sin(13pi), cos(14pi), tan(15pi)
  9. trig

    solve the point given below is on the terminal side of an angle0. find the exact value of the six trigonometric functions of 0. (10,-10)
  10. trig

    If a flywheel 8 ft. in diameter rotates at 80 rpm., what is the linear velocity of a point on the outside edge, in feet per minute in terms of pi?
  11. trig

    a sailor on a boat 580 metres from the base of a vertical cliff sights the top of a lighthouse with an angel of elevation of 31 degrees
  12. trig

    Find all angles, 0≤A<360, that satisfy the equation below, to the nearest 10th of a degree. 2tanA+6=tanA+3
  13. trig

    Given angle x,where 0 <= x <= 360 (degrees) solve for to the nearest degree. a)cos(2x) = 0.6420 b)sin(x + 20) = 0.2045 c)tan(90 - 2x) = 1.6443
  14. Integrated Trig

    How many years will it take for an initial investment of $5,000 to double if it is invested at a rate of 3% compunded continuously? Compounded annually?
  15. Trig

    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 decimal places.
  16. Pre-Calc/Trig...

    I have one way, but cant think of another? Show two ways of finding y if y = log4 64. Explain your thinking. 4^x=64 x=3
  17. Trig

    Use the Law of Cosines to determine the indicated angle θ. (Assume a = 17, b = 10, and c = 20. Round your answer to one decimal place.)
  18. trig

    Solve triangle ABC. (If an answer does not exist, enter DNE. Round your answers to one decimal place.) a = 63, c = 50, ∠C = 53°
  19. physics

    A 5.40 Kg package slides 1.47 meters down a long ramp that is inclined at 11.6 degress below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.313. Calculate the work done on the package by friction. Calculate the work done on the ...
  20. Algebra

    Solve S=a/(1-r) for r S = a/(1-r) Multiply both sides by 1-r S*(1-r) = [(1-r)*a]/(1-r) Simplify S*(1-r) = a Multiply terms on the left. S - S*r = a Subtract S from both sides. S-S*r - S = a - S Simplify -S*r = a - S Multiply both sides by -1 S*r = -a+S Divide both sides by S S...
  21. algebra 2

    1.Simplify the difference. n^2 - lOn+24 9 / n^2 - 13n + 42 — 7 A. n-13/n-7 <<< B. n-4/n-7 C. n-13 2.Simplify the complex fraction. y-1/y^2+y-6/y-6/y+3 A.(y-1)(y-6)/(y+3)^2(y-2) B. y-1/(y-6)(y-2) C.(y-1)(y-6)/(y+3)(y-2)<<< 3.Find the least common multiple of...

    17.. In 1916, France and Britain secretly agreed on a partition of six Middle Eastern states. The agreement became known as the A. Sykes-Picot agreement. B. Treaty of Lausanne. C. Balfour Declaration. D. Damascus agreement. I chose D please could you check this
  23. Science 8th grade please check (revised answer

    Mr. Jones went to his doctor because for the past few days he has been having frequent burning uriation. The doctor preformed a urialysis. This was done by have the patient void into a collection container. The urine was cloudy and yellow in color. There was an unusual ammonia...
  24. I need help please - Pre-Calc

    Using the graph of y=cos(x), list all values of x on the interval [-11π/3,11π/6] that satisfy the ordered pair of (x,-1/radical2). - List all the values of (x,-1/radical2) (Type an exact answer using π as needed. Use a comma to separate answers as needed. Use ...
  25. Math

    1) Solve for x and check Radical (x^2-10x)=3i 2) Simplify (5+ Radical 2)/(5-Radical 2) 3)describe the nature of the roots x^2-x-6=0 x^2+4x+29=0 4) Solve for x and check Radical (x^2 +4x +44) +3=2x I got 7 and -5/3 as answers, was not sure though
  26. Art and Architecture

    Choose a contemporary painting, sculpture, or piece of art that captures your interest. This should be a piece created between the end of World War II (about 1945) and today. You may choose one of the illustrations or color inserts in the textbook, opt for an artist featured ...
  27. Math

    Please check these - as we were told they were wrong by a teacher: Find the mean, mode, median and range of the following 2 problems. 1. 70,31,13,12,31,53 mean - 35 median - 31 mode - 31 range - 58 2. 50,47,50,31,37,51,34,72,15 mean- 43 median - 47 mode - 50 range - 57 If I am...
  28. Angle question

    Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find mangleKJM In the right triangle ABC, mangleB = 90, AB = 5, and AC= 12. Find BC. Round to the nearest tenth, if necessary. Help? Is AB a side and AC a side? I can't tell from your description which are sides and which is ...
  29. History.. Please check my answers

    Can someone please check my answers? Thank you! :) 1. Which of these claims produced conflict between religious leaders and Transcendentalist writers? A. the claim that God and nature were the same B. the view that everyone could interpret God's will C. the belief that ...
  30. English-(PLEASE CHECK)

    George lies about the cause of Lennie's mental deficiency. Why does he change the story from the truth? My Answer- He thinks the boss won't give them jobs if he knows the truth. What is the truth? Is it that Lennie was born w/ it?
  31. law Ms Sue please re check my answer

    i have to pick from the following informed consent disclosure substituted consent Regaurding the question a minor needs an operation the parent consent to the operation
  32. Chemistry(Please check)

    1) Which one of the following molecules is the most polarizable? a) H3C – I b) H3C – CH3 c) H3C – F d) H3C – H e) H3C – OH I chose H3C-I as the answer because the mm was the greatest. I added the mm of H, C, and I and got 141.934. Did I do this correctly?
  33. American Gov't--please check

    On election day, each voter is assigned to a special election district, also known as a _____. 1.)polling unit My answer2.)precinct 3.)neighborhood poll 4.)election unit
  34. Psychology -- Check please?

    Studying the effects of mercury on the brain is this type of research Biological Cognitive Behavioral Humanistic Psychoanalytic I'm torn between cognitive and psychoanalytic, but am leaning towards cognitive...
  35. math (please check answer)

    What type of graph does not show the number of times a response was given? box-and-whisker plot****** line plot stem-and-leaf plot bar graph
  36. Math check please

    1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing the square. if ...
  37. Math

    I the question is simple but I haven't done fractions in a while. So check my answer please. Are and  equivalent fractions? A. No B. Yes, because both fractions are divisible by 2.**** C. Yes, because the difference between the denominator and numerator in each fraction is ...
  38. Chemistry

    The following thermodynamic data was obtained for an unknown compound. Delta Hvap = 31.3 kj/mol and Delta S Vap= 79.7 kj/mol .Calculate the normal boiling point of this compound in Celcius.. Thank you! Chemistry - DrBob222, Tuesday, April 30, 2013 at 12:31am dG = dHvap - ...
  39. Math - Algebra

    A. Solve the following quadratic equations. Make sure to show all your work. Do not use any method (e.g. factoring, completing the square, quadratic formula, graphing) more than twice. Use the graphing method at least once. 1. 3x+2 + 11x -20 =0 2. x2 + 3x -4 =0 3. 3x2 - x - 1...
  40. Physics-Please check-I've attempted it

    Posted by Matt W on Tuesday, January 4, 2011 at 3:17pm. Calculate amount of energy needed to completely vaporize a 50g piece of 20 degree C silver melting point 1064 C L(f) = 64KJ/Kg Boiling point 2856C L(v) = 1645 KJ/Kg c= 0.13KJ/Kg degrees C I'm thinking I balance each side ...
  41. english

    In the poem Warren Pryor by Alden Nowlan, it says "his axe-hewn hands upon the paper bills aching with empty strength and throttled rage." I understand that it means that he wanted to work on the farm instead of in the bank, but could someone explain the "aching with empty ...
  42. Chemistry

    Here goes. I am NOT an organic chemist so please obtain other sources for information; i.e., don't take my work as gospel. a) I believe the second one you list is more reactive because the first one is sterically hindered due to the isopropyl group. And bromine is a huge ...

    1. 3w – 10w (1 point) 13w –7w –7 7w 2. y + 2y +3z (1 point) 2y + 3z 3y + 3z 2y2 + 3z 6yz 3. 6r + r – 5r (1 point) 2r 1r + r 0r 7r – 5r 4. 5x + 2(x + 6) (1 point) 7x + 6 7x2 + 12 7x + 12 7x (x + 6) 5. –3m + 3(m + 6) (1 point) 6 –6m + 6 6m + 18 18 MY ANSWERS: 1)B 2...
  44. metals

    Are you see the new work of magnesium metal? (magneisum,com) Magnesium is used in many light weight alloys. I am uncertain of your question. Please rephrase.
  45. DT Textiles

    in dt textiles we have to find a word or term that fits this description - Ensuring that you carry out your work without harming yourself or anyone else please can some1 help
  46. Algebra

    Use synthetic division to divide the polynomial 2x^3 – 12x – 5 by x + 4, and write the quotient polynomial and the remainder. [Be careful – notice that there is no x^2 term.] Please Show work.
  47. computer science

    Please design the ¡§Classes¡¨ that will work together for the implementation of the User Case ¡§Validate User¡¨ in the ATM machine. its just want us o write a diagram..
  48. Math; Pre- Algebra

    I neede help with how to solve equations with variabls on both sides. Can you give me some examples and work them out step by step?? Please!! :D
  49. Math 3

    graphing log functions for y=log12^x I don't have a calculator for this and I would like to know how to work this problem on paper so I can graph it to my chart. Can someone please help me with this problem?
  50. 5th math

    Estimate and solve. 214+182= Estimate___________ Solution____________ 1,532-176= estimate:_____ can you please show the work too thanks!! Solutionz:____
  51. algebra

    the function w(x)=-0.01x^2+0.27x+9.20 can be used to estimate the number of workers in the US, x years after 1980. How many workers were there in 1995? please show work. a. 9.2 M b. 10.4M c. 11M d. 15.5M
  52. chemistry

    Caluclate the total mass of copper needed to react with 100g of iodine to make 512g of copper(ii) iodide. PLEASE work it out for me idk how to do it ?
  53. Calculus!

    For the function y=(e^2x)+(3x)-(10), use Newton's method and the calculator method to find the x value for which y=15. Please show your work so that I can understand the question! Thank you so much!! it means alot!!
  54. algebra

    Find the slope of each of the three line segments in the graph below. Please show all of your work. Between which two points is the slope the smallest?
  55. Math - Graphing Logarithms function

    Graph the function below. Determine the domain, range, and vertical asymptote. Please show all of your work. f(x) = log2(x-4)
  56. Stats.....plz help me.....

    Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Errors Frequency 51-53 9 54-56 19 57-59 16 60-62 24 63-65 25
  57. chemistry

    Determine the concentration of a solution of Mg(NO3)2 given the precipitate formed is 2.97 g and there are 50mL of Mg(NO3)2 and 50 mL of NaOH. Please show all work for each step clearly
  58. Physics

    If each tire of an automobile has an area of .026 square meter in contact with the ground, the weight of the automobile is 26,000 N, what is the pressure in the tires? Please show work.
  59. college algebra, Please help!!

    find a bound on the real zeros of the polynomial. f(x)=x^4+2x^3-8x-7 every real zero of f lies between -? and ? *pleasae show all work*

    Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?
  61. books

    Hi I need help with a novel illustrated by Wayne Permenter 'The Stray' I need reference to context and question answers on them since it is very difficult for me to work on it. Can you please be of any help.
  62. Calculus

    Use the intermediate value therom to show that there is a root of the given equation in the specified interval. x^5-7=2(25-x); (2,3) Please explain for understanding and show work, Thank you in advance :)
  63. Algebra

    What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x solution I think it is C...? If I am right can you show your work please...I am just starting to understand these..thank you
  64. Analytical Chemistry

    How many milliliters of 0.0560 M EDTA are required to react with 50.0 mL of 0.0170 M Cu^2+? With 50 mL of 0.0170 M Sc^3+? My work so far: (50mL)(0.0170mmol/mL)= 0.85 mmol Cu^2+ I'm not sure how to do the rest. Please help.
  65. college algebra

    I'm stuck on 2 problems I know the answers but need to learn to show the work. X^4+x^3=16-8x-6x^2. Answer: -2,1,+-√8 3x^3+4x^2+6=x. (-2,1/3, i√8/3) Please help so I know how to figure these equations out.A big THANKS
  66. Physics PLEASE HELP

    When UV light of wavelength 295nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.50eV. What is the work function of the metal? W0 in eV
  67. Statistics

    142 out of 507 people were right. Calculate a 95% confidence interval for the proportion of the entire population that could be right. I did some of the work and got .72...don't know what to do with this? Please help.
  68. math

    The distance between points A and B is 10 units. If a has coordinates (4,-6) and B has coordinates (-2,y), determine the value of y. Please show work and explain. A.-6 B.-2 C.0 D.1 E.2 This is what I got so far: 10= square root of (4-(-2))^2+(-6-(y))^2
  69. physics

    a 1kg object moving east with a velocity of 10 m/s collides with a .50kg object that is at rest. neglecting friction, what is the momentum of the system? please show work
  70. Math

    Hello! I have a question. What is a table of values for y=x-8? Please tell what free calucators show work! I've been on this question for hours and I'm really frustrated!
  71. Chemistry

    A recipe calls for 5M of sucrose (C12H22O11) dissolved in 750mL of H2O. Please calculate the total mass (g) of sucrose needed. Show all work.
  72. @Jill

    You've earned a time-out for about a month. If you decide to return, please be aware that we work to help students learn, not just hand out answers.
  73. Chemistry

    A compound is formed when 12.2 g Mg combines completely with 5.16 g N. What is the percent composition of this compound? Please show all work and include the percentage of both magnesium and nitrogen.
  74. infinite discontinuity

    How do check the graph of a function has an infinite discontinuity at a point or not? (without the help of a graphing calculator) example: Check whether y = (x^2-9)/(3x-9) has an infinite discontinuity at x = 3 or not CAn you get rid of the denominator? (x+3)(x-3)/3(x-3) in ...
  75. Chemistry

    Hydrogen peroxide is used as a bleachin agent, a disinfectant and medicinally as a topical antibacterial agent. Hydrogen peroxide decomposes according to the reacton 2H^2O^2(l)-->2H^2O(l)+o^2(g) A. Given the standard free energy of formation values shown below, calculate ...
  76. American Literature

    I posted this question twice by mistake and the response was the same. It said there is a response and to check the other post. I did and it had the same answer, telling me to check the other post. This would keep someone busy for hours checking each post back and forth for no...
  77. Physics please check

    An electric clock is hanging on the wall in the living room. The clock is unplugged, and the second hand comes to a halt over a brief period of time. During this period, what is the direction of the angular acceleration of the second hand? a. clockwise b. counterclockwise Why...
  78. math-please I really need help!!!!!

    Consider the functions f(x)=2x+8/x+6; g(x)=6x-8/2-x Find f(g(x)) Find g(f(x)) Deterrmine if f and g are inverses of each other. a. What is f(g(x))? Give any values of x that need to be excluded from f(g(x)) x=? b. what is g(f(x))? ive any values of x that neeedd to be excluded...
  79. FACS - Reading Assignment (Q2) Check

    3. Explain - Why are foods-lab tasks moved from one person to another? Answer - The reason why are foods-lab tasks moved from one person to another is because when team members work together to complete tasks in the school foods lab, the whole group benefits. am i correct?????
  80. Physics HELP!!!!!!!!

    In exercising, a weight lifter loses 0.100 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.30 x 10^5 J. (a) Assuming that the latent heat of vaporization of perspiration is 2....
  81. 8th Grade Pre-Algebra

    Annabelle and Navene are multiplying (4275)(4372). Annabelle's Work (4275)(4372) = 42 + 375 + 2 = 4577 Navene's Work (4275)(4372) = 42⋅375⋅2 = 46710 Is either of them correct? Explain your reasoning. Those numbers have exponents in them. I've been trying to find ...
  82. physics

    A 54.5-kg skateboarder starts out with a speed of 1.95 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ...
  83. Math

    1. The towns population increased from 80,000 to 90,000 in ten years. What was the percent of increase? I didn't understand this one. 2. A $15 item on sale for $12 is marked down what percent? 20% 3. If Jenna buys and item for 40% off the regular price, will she pay more or ...
  84. Algebra - Can you PLEASE check - I"m stuck!

    Bob is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days: F(N)=10(1.02)^n 1. Starting from 0 days, plug x-values into our function to find out how many days it takes for the plant to...
  85. aLGEBRA 2 help please would appreciate

    X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you
  86. aLGEBRA 2 help please would appreciate

    X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you
  87. Math

    A school hall has 30 rows of seats. Each row has 28 seats.How many seats are there. please show work out.
  88. chemistry

    A gas absorbs 45 kJ of heat and does 29 kJ of work. Calculate the change in energy. The answer is 16 kJ, but I don't understand why. If a gas absorbs heat and does 29 kJ of work. Wouldn't they both be positive? Change in energy = q + w 45 kJ + 29 kJ = 74 kJ Why is the work ...
  89. socialstudies(CHECK ANSWERS)

    ANOTHER UPDATE FOR MY RECENT QUESTIONS I UPDATED ANSWERS....please check them 5. Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico. C.Spanish, on the ruins of the Aztec capital. (I PICK THIS) D.Mexican ...
  90. english /help

    label the subject and the verb of each of each clause. Then write whether the sentence is simple or complex. 1)Every afternoon the baseball team practices. subject: the baseball team verb: practices simple sentence 2)When practice is over, the players are tired. subject:...
  91. Maths'

    What percentagge of £119.25p is £11.04p? Divide: 11.04 by 119.25. This gives you a decimal number. Move the decimal point two places to the right to turn it into a percentage. Please post your answer and we'll be glad to check it.
  92. House/ Crate training (dogs)

    please check my answer thanks which one of the following types of dogs would be easiest to train to eliminate in one spot in the yard A Lab B guard dog C Akita D Poodle I said A
  93. medical info mangement

    please check my answer thank which of the following is a government- owned,federal facility ? 1. Veteran's Administration Hospital 2. Jones County Hospital 3. Sate medical center 4. City health clinic I picked #1
  94. Grammar

    Please check these- 1.Of the three brothers Jason drives ________. A.more carefuller B.most carefully C.most carefullest D.the carefullest B? 2.Rick is the _______ tennis player of the twins. A.better C.gooder D.goodest A Thanks -MC
  95. Environmental science

    please check this for me: 31. Wind can blow soil away very quickly and erode soft rock, while waves erode coastlines and rivers carve deep gorges. True or False? True!
  96. Pre-Cal(please check)

    I have to find the width of a river which is represented by a right trianle. The opposite side is labeled w and the adjacent side is 1oo ft. Theta is 54 degrees. Would my equation be opp = adjacent/cos(54)?

    17. Which of these World War II battles established overall equality between the U.S. and Japanese naval powers? A. Battle of the Coral Sea B. Battle of Guadalcanal C. Battle of Midway D. Battle of Leyte Gulf I chose A. please check my answers
  98. English

    Generally, any sentence that contains research-based information must include a three-part in-text citation that lets readers know the source of the information. True False I sat True. Please check my answer.
  99. Java Programming I

    Hello! Thanks for checking my question out! ____ 2. If x is an int, which of the following statements adds 5 to the current value of x and stores the new value back in x? (1 point) a) x = 5; b) x + 5; c) x =+ 5; d) x += 5; My Answer: D Could someone please check my answer? ...
  100. Geometry

    Hey! Thanks for checking my question out! ____ 5. In an isosceles triangle with two congruent sides, the angles across from the legs are called ________ angles. My Answer: base Could someone please check my answer? Thanks! - Da Fash
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