Trig check my work please?

42,402 results, page 66
  1. Math

    If Sally can paint a house in 4 hours, & John can paint the same house in 6 hours, how long will it take for both of them to paint the house together? ' I am having trouble remembering how to set up the equation? Amount of work accomplished = (Rate of
  2. Technology

    How can you find out which study method is best for you? A. Use the method your friend is using because if it works for him it will work for you. B. Select the first method you try and do not try anything else C. Try to methods and select the one that
  3. Physics

    A 4.00kg crate is slowly lifted to a height of 1.50 m.(a)How much work is done by the lifting force? (b)against gravity? (c)by gravity? Force = mass*acceleration Here the acceleration is from gravity. Work=Force*distance.
  4. Calculus

    I need help setting up the equation. The portion of the graph y = ex between x = 0 and x = ln 3 is rotated around the y axis to form a container. The container is filled with water. Use n = 4 subintervals and midpoints to approximate the work required to
  5. English

    1.Which of the following is used when political candidate highlights his or her experience in finance as the basis of a plan for economic recovery? A.Ethos B.Pathos C.Logo***** 2. Identify the sentence that most strongly relies on emotional language. A. It
  6. writeacher spanish

    Sra McGuin - had been helping me review my work she asked me what I was trying ot say in english _I had done the entire assignemtn but to help me she needed the english - I would never ask someone to do my work point of is my most memoable day on the
  7. MATH

    Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day,
  8. Trig

    The original screamer radius =100 feet rotated 1 deg per sec. The engg decided to make it scarier by making it rotate 18 deg per second. Write the new equation for the vertical position of a passenger on the screamer where the domain is now the time per
  9. trig

    A bicyclist is riding at 15 mph and her bike has wheels with a radius of 14 inches. She rides over a wad of gum which sticks in the tire. Assume this is t=0 seconds. a.)Find a function that gives the height in inches above the ground of the gum, with the
  10. Accounting 8

    The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?
  11. Accounting 8

    The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?
  12. Physics

    A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. A) Calculate the work done in raising the motor B) How much useful work was done? C) What
  13. Math

    Linda works at a pharmacy for $15 an hour. She also babysits for $10 an hour. Linda needs to earn at least $90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of hours Linda could work at each job to meet
  14. Accounting 8

    The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?
  15. Pre Calculus

    I keep trying to solve this by factring but I can't seem to get! It's so frustrating! The problem is 1+tan2x=0 This is how I worked the problem before: 1+((2tanx)/(1-tan^2x))=0 ((2tanx)/(1-tan^2x))= -1 Then I cross multiplied to get: -1 + tan^2x = 2 tanx
  16. Math

    A company finds that one out of five employees will be late to work on a given day. If this company has 42 employees, find the probabilities that the following number of people will get to work on time. (Round your answers to 4 decimal places.) (a) Exactly
  17. Physics

    A 900W motor is used to lift 275.51kg of bricks a distance of 30, to the roof of the building. a. If the motor ran for 90s how much work did it do? b. What is the potential energy of the bricks? I know how the calculate work, but I'm really confused about
  18. physics

    A person lifts a 4.6 kg cement block a vertical distance of 1.43 m and then carries the block horizontally a distance of 10.50 m. (a) How much work is done by the person in the process? (b) How much work is done by gravity in the process?
  19. math

    tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? solution please
  20. Begley

    A person lifts a 4.1 kg cement block a vertical distance of 0.79 m and then carries the block horizontally a distance of 13.30 m. (a) How much work is done by the person in the process? (b) How much work is done by gravity in the process?
  21. Chemistry

    Consider these changes. (a) Hg(l)->Hg(g) (b) 3O2(g)->2O3(g) (c) CuSo4*5H2O(s)->CuSO4(s)+5H2O(g) (d) H2(g)+F2(g)->2HF(g) At constant pressure, in which of the reactions is work done by the system on the surroundings? By the surroundings on the
  22. math/ check!

    find the general term that describes the following sequens 600,300,150,75 I the thing is that you divide each of them by 2 so I would go y(n)= 600/ 2^n but how do I check if this is right? is this right? It is right. That would certainly be a good guess,
  23. Art

    Could you please check these examples and tell me if the sentences in brakets are possible? Thank you , Writeacher 1)Her boss is going to ask her out for dinner next Saturday. 2) The line is engaged. Would you like to hold? (Not: would you hold?) 3.Our
  24. Math

    I need someone to show me how to work these two problems out. 30. find the hypotenuse of a right triangle whose sides measure 9 and 12: i came up with the answer 15 but i honestly forgot how i got this answer please let me know what i did wrong and work
  25. physics

    The driver of a 1300 kg car, initially traveling at 10.1 m/s, applies the brakes, bringing the car to rest in a distance of 16.5 m. (a) Find the net work done on the car. (b) Find the magnitude and direction of the force that does this work. (Assume this
  26. physics (work shown)

    A 0.63-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstrained length quadruples. What is the mass of the second block? My work
  27. Physics (12th Grade)

    In changing the state of a system from state A to state B adiabatically the work done on the system is 322 J. If 100 cal f heat are given to the system in bringing it from state A to state B, then what will be the work done on the system in this process?
  28. accounting

    Which of the following adjustmnts will require the company to record a debit memo sent by the bank? a. The bank collected a $550 note receivable, plus interest, which had not been recorded in the company's journal. b. The company recently made a $692.28
  29. Trig

    when sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is 53degrees 51inch. If joey is known to be standing 25 feet away from the base of the tree, how tall is the tree (to the nearest foot.) Who ever
  30. Intermediate algebra

    Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single
  31. Intermediate Algebra

    Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single
  32. physics

    A force of 200N is needed to push a 500N object up the inclined plane pictured below. Determine the force in, the force out, the distance in, the distance out, the work in, the work out, the mechanical advantage, the therotical mechanical advantage, and
  33. probability

    a teacher on her way to work passes through 3 stoplights each morning. the distances between the stop lights are great and the lights operate independently of each other. if the probability of the red lights are .4,.8 and .6 for each light, what is the
  34. Physics

    A net force of 5.75 * 103 N [180degree ] acts on a mass of 23.0 kg. If, while the force acts, the mass travels through a displacement of 360 m [210 degree ], what work did the net force do on the object? Into what form of energy was this work transferred?
  35. English

    I forgot to include the following examples.I urgently need to know if they are possible. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2) You can drive at 130
  36. business ethics

    2. Reah filed a case against her employer who dismissed her from service for reporting to work under the influence of alcohol. Which of these would be valid reason to contest the dismissal? a.)Reah's employer had not listed reporting to work after
  37. Algebra

    10. Solve each radical expression. Check your solution. 1=√(-2v-3) 11. Solve each radical expression. Check your solution. √(n+5)= √(5n-11) 12. Tell which solutions, if any, are extraneous for each question. √(12-n)=n; n= -4,n=3
  38. airthmetic progression

    300 men wre engaged to complete a job in acertain number of days.but due to another assignment 15 men dropped the second day,15 more dropped in the third day and so on. it takes 15 more days to finish the work now.find the no. of days in which the work was
  39. english

    can u edit this and add a little more plz like 2-3 lines plz in easy words, it is from the book we are all welcome here by elizabeth berg: Historically the work is significant because it gives us an insight of the horrors of the civil war, which asserted
  40. Chemistry

    Heyy, okay I have this chemistry assingmnet and its on kinetics, and I got every single one except this one question and I've been trying for over an hour. I know that I'm probably jus tmissing something but everything I've tried doesnt work. Any help is
  41. Math Trig Please Help!!!

    Find exact values for all the solutions to the equation cos theta = sqrt 3/2 for -2pi <= theta <= 2pi Theta = Theta = Theta = Theta =
  42. trig

    for the geometric series shown, state whether the series in convergent. If the Series is convergent give its sum 9+6.3 +4.41 +... a tutor helped me earlier but how is the sum 0.7
  43. trig

    (3 tan^2x-1)(tan^2-3)= 0 can someone please explain how to do this problem and then explain the whole pie thing at the end...like, this is suppose to equal pie/6 b/c it's tan...im soooo confused.....
  44. Trigonometry

    How am I suppose to transform the left side of the equation into the right side using trig identities? ): 1) sin^2θ - cos^2θ = 2 sin^2θ - 1
  45. trig

    weather balloon is directly west of two observing stations that are 10 mi apart. The angles of elevation of the balloon from the two stations are 17.6 degrees and 78.2 degrees. How high is the balloon?
  46. trig

    A ladder leans against a house at a point 19 feet high. The ladder is 25 feet long. What is the measure of the angle formed by the ladder against the house?
  47. 11th grade math algebra 2 trig

    the tens digit of a two digit number is 6 more than the units digit. the number is 36 more than the number when the digits are reversed/ what is the number?
  48. Geometry/Trig.

    For acute angle Aof a right triangle, find tan A by using the 45-45-90 Triangle Theorem or the 30-60-90 Triangle Theorem. measure of angle A=45 degrees.
  49. Trig

    In triangle ABC, A=35 degrees, a=43, and c=20. Determine whether ABC has no solution, one solution, or two solutions. Then solve the triangle. Round to the nearest tenth. no solution.
  50. Trig

    Verify each trigonimetric equation by substituting identities to match right hand side of the equation to the hand side of the equation. Please help. -tan^2x+sec^2x=1
  51. trig

    A tower is supported by a guy wire from the top of the tower to the ground 16 ft from its base. The wire makes an angle of 62 with the ground. The length of the wire is a. 30.09 ft b. 18.12 ft c. 28.41 ft d. 34.08 ft
  52. Economy

    The Good’n’Fresh Grocery Store has two checkout lanes and four employees. Employees are equally skilled, and all are able to either operate a register (checkers) or bag groceries (baggers). The store owner assigns one checker and one bagger to each
  53. Math

    Use the point-slope form linear equation given to complete the following problems. y-3=3(x+1) 1. What is the slope of the given line? Here's what I did: y-3=3(x+1) y-3+3=3x+3 y=3x+6 m=3 Correct so far? 2. What point does this line pass through, which is
  54. math

    Solve the following algebraically. Trial and error is not an appropriate method of solution. You must show all of your work and write answers in rational form. 3 x + 7 = 9 Answer: x = 2/3 Show your work here: 3 x + 7 = 9 -7 - 7 3/3 x = 2/3 X = 2/3 b)
  55. Chemistry - Periodic Table+IE(check+help)

    The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give
  56. Chemistry - Periodic Table+IE(check+help)

    The following data lists the ionization energies for a given atom: IE1 = 738Kj/mol; IE2 = 1451Kj/mol; IE3 = 7733Kj/mol. Predict the valence electron configuration for this atom, and explain your reasoning. i do not understand this question but i will give
  57. Chem 1

    Use the following data (in kJ/mol) to estimate the standard enthalpy of formation (in kJ/mol) for hypothetical compound CsF2 in the solid state. Lattice energy of CsF2 -2347 First ionization energy of Cs 375.7 Second ionization energy of Cs 2422 Electron
  58. AP ENGLish

    Many plays and novels use contrasting places (for example, two countries, two cities or towns, two houses, or the land and the sea) to represent opposed forces or ideas that are central to the meaning of the work. Explain this contrast within the play,
  59. Hypergeometirc Distribution

    From a lot of 12 flares, 4 are selected at random. If the lot contains 4 defective flares *flares that will not fire), what is the probability that all 4 will not work? What is the probability that at most 2 will not work?
  60. Statistics

    The probability of Joe is at work is 49%. The probability Joe is at home is 25%. What is the probability Jow is neither at Work nor at home? A) 39% B)74% C)52% D)26% I get the answer at about 38%,but doesn't round to 39%, can anyone help, I'm stuck.
  61. Physics - Work

    A tennis racket is in contact with a 55 kg ball for 0.0050 s changes the ball's velocity from 30 m/s [E] to 40 m/s [W] over a distance of 0.0001 m. how much work is done on the tennis ball by the racket?
  62. math

    Charles work a total of 30 hours last week. he worked 10 hours on Monday. what fraction of his work hours for the week did he complete on Monday?
  63. Science

    Why do scientists use models? a: Scientists use models to learn about things that are too small, too large, or too complex to observe directly. < b:Scientists use models because doing so is always part of the scientific method. c:Scientists use models
  64. Please Check Answers for Health

    Please check my answers because I need to do good at this. 1. When consuming fats the healthiest choice is foods high in? A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential
  65. Algebra 2 word problem

    Just wanted to check to see if these are correct. Thank you, Please check if a greyhound bus travels 7mph slower than the express bus. the express bus travels 45 miles in the time it takes the greyhound bus to travel 38 miles. find the speed of each bus
  66. preap physics

    A 15.4kg block is dragged over a rough horizontal surface by a constant force 191N acting at an angle of 25.3 degrees above the horizontal. The block is displaced 80.4m and the coefficient of kinetic friction is. 2 A) find the magnitude of the work done by
  67. physics 111

    A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. 1) what's the work done by the applied force? in joules 2)whats the work done by the normal force exerted by the
  68. Algebra

    Consider the points (3, –1) and (9, 2). (a) State the midpoint of the line segment with the given endpoints. (b) Find the distance between the points. Show some work. Give the exact answer (involving a radical), and also an approximation to three decimal
  69. Calculus

    If the work required to stretch a spring 1 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 6 in. beyond its natural length?
  70. Math

    Hi. Im trying to figure out how to solve an equation for x. The equation is y=2(x-3)^2. If I were to work this out, I would have come up with the answer x=sqrt y/2 +3 but the answer is actually x=sqrt 2y/2 +3. I can't work out where the extra 2 has come
  71. AP calc

    If the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 18 in. beyond its natural length?
  72. math

    13 out of 25 college students work at part-time jobs. What percent work at part-time jobs?
  73. math

    Fifteen people working at the same rate would complete some work in 10 days. How many days would 6 people need to complete the same work?
  74. Math

    578 of 850 employees work directly with guests what percentage of employees work directly with guests
  75. Precalculus with Trigonometry

    Calculate the work done by gravity as a 10 kg object is moved from point A = (0,0,0) to point B = (1,2,0). We are given s = (x sub f - x sub I)x(hat) + (y sub f - y sub I)y(hat) + (z sub f - z sub I)z(hat). Sorry if that doesn't make sense. I think I have
  76. geometry

    A scale for a scale drawing is 10 cm:1 mm. Which is larger, the actual object or the scale drawing? Show work. --I understand that the answer is 100 times larger since 10mm equals 1cm. BUT how do I show the work of how this is solved? THANK YOU!
  77. Physics/Math

    A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? Work is the
  78. trig

    Two office towers are 43m apart. From the top of the shorter tower, the angle of elevation to the top of the taller tower is 26o while the angle of depression to the base is 51o. Determine the height of each tower and round your answers to one decimal
  79. Grammar ~CHECK MY WORK PLEASE~

    THE STARS NEXT TO IT ARE MY ANSWERS!! Select the answer that correctly identifies the part of speech of the italicized word or words in each sentence below. The words are with all big letters. YET, OH, SUDDENLY, BEFORE, THROUGH, OUTSIDE 1) The movie was
  80. trigonometry

    1.if 2^x+2^y=2^(x+y) then dy/dx is equal to what? 2.If x.root(1+y)+y.root(1+x)=0 then dy/dx is equal to what? 3.Sin[(1/2)cos^-1(4/5)] is equal to what? 4.check the continuity of function f(x)=2x+3 at x=1. 5.check the continuity of the function F(x)={e^x -
  81. English

    please check this for me thanks this my draft now I think that I can turn in more than one draft but do you really do that. There are on- going problems that need to be addressed at the DMD company. First there is uneven allocation of tasks. While Bonnie
  82. History

    How does the ROman empire work? http://encarta.msn.com/encyclopedia_1741502785/Roman_Empire.html It worked for several centuries, but not anymore. Recommended reading (or viewing): I, Claudius. The HBO Series "Rome" makes a watchable soap opera out of the
  83. Math

    A tank has cross-sections in the form of isosceles triangels, vertex down. The top of the tank is 6ft wide, its height is 4ft, and its length is 10ft. find the work in pumping all the water to the top of the tank. (weight of water is 62.4 pounds per cubic
  84. Art

    1. This is where an interior designer does most of her work. in a factory at the client's home in an office <<<<<<<<< in a studio 2. When looking at fabrics, an interior designer will focus on these characteristics. shape and
  85. science

    Mrs leuenberger ran the same marathon but since her husband was hunting and she couldn"t find a babysitter she had to carrY her two daughter in her arms they weighs 40pounds and 55 pounds mrs leuenberger weights 145pound (butyou didn't hear that from me)
  86. Art

    which of the following would be the best criterion for evaluating this piece of art? (1 point) A. the characteristics of detailed portraits. B. the characteristics of perspective. C. the characteristics of photo-realism. D. the characteristics of
  87. Physics

    The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. (a) Assuming the earth is a sphere with a radius of 6.38 106 m, determine the speed of a person situated at
  88. math(check answers)

    please check my math!! THANKS SO MUCH 1. Identify the decimal And simplified fractional form of 80%. A. 0.8 and 3/5 B. 0.8 and 4/5(I PICK THIS) C. 0.08 and 3/5 D. 0.08 and 4/5 2.A baseball team wins 45% of its games. What fraction of games does it win? A.
  89. sociolinguistics-one more question

    i forgot to ask one more thing..what is a regional dialect?i can't find anything about that A regional dialect is the use of certain words and accents peculiar to a given region. Y'all, for instance, marks a southern U.S. speaker. The pronunciation of some
  90. English

    Evaluate which of the following is the best example of a summary. A.In Goldilocks and the Three Bears, a character named Goldilocks sneaks into a home owned by bears. She eats a bowl of porridge and falls asleep in the house. When the bears return,
  91. Math

    The current, I, in amperes, for an electric circuit is given by the formula I=4.3sin120(pi)t, where t is time, in seconds. a)At what time is the current at its max volume? How does your understanding of co terminal angles help in your solution? b)What time
  92. Math 2

    You should make two selections from the list below. Which two of the four equations represents parallel lines? 2x - 3y = -10 6x - 9y = 15 3x + 2y = 10 9x + 6y = 30 i think it's the second one Parallel lines have the same slope. Rework your equations to be
  93. physics

    A rescue helicopter lifts a 85.2-kg person straight up by means of a cable. The person has an upward acceleration of 0.764 m/s2 and is lifted from rest through a distance of 12.5 m. (a) What is the tension in the cable? How much work is done by (b) the
  94. Algebra 1 (Reiny)

    How am I supposed to solve and graph this? "Linda works at a pharmacy for $15 an hour. She also babysits for $10 an hour. Linda needs to earn at least $90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of
  95. physics

    A rescue helicopter lifts a 85.8-kg person straight up by means of a cable. The person has an upward acceleration of 0.643 m/s2 and is lifted from rest through a distance of 13.1 m. (a) What is the tension in the cable? How much work is done by (b) the
  96. Physics

    One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 12 m. (1 tonne = 1000 kg) The acceleration of gravity is 9.81 m/s2 . How much work is done by the crane? Answer in units of MJ I
  97. trig

    If sin 2 theta = (2/5) in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta.
  98. Trig

    Write the following in terms of sin(θ) and cos(θ); then simplify if possible. csc(θ) - cot(θ)cos(θ) =
  99. Thermodynamics

    A closed cycle gas turbine unit operating with max. And min. Temp. Of 760 and 20 Celsius deg has a pressure ratio of 7/1. Calculate the thermal efficiency and work ratio? Ans = 42.7 % , 0.505 My answers are : Efficiency 42.7 % which is correct.. but work
  100. algebra

    i need help finding the base. this is the equation i got after work it out halfway. 42/h+h+sqroot(42/h)^2+h^2=20 ft how can i find B & H. How should i go about. Thanks. Isnt the sqrt of (42/h)^2 just 42/h ? Then, multipy both sides of the equation by h,