Trig check my work please?

42,371 results, page 69
  1. physics

    When 1180 J of heat are added to one mole of an ideal monatomic gas, its temperature increases from 272 to 292 K. Find the work done by the gas during this process. I know the specific heat is Q/delta T, so C = (1180 J)/(20K) = 59. This seems like any easy
  2. 11th grade math

    Suppose you earn $7.21 per hour and plan to work "h" hours per week. write an expression using variables that models the amount of money you will earn each week. Then, suppose you earn $10 in tips per week, regardless of the hours you work. How does this
  3. art

    Hey guys, i need some ideas for my art work. but firstly i need a phrase or message to work from. im thinking about technology right now so can you guys give me ideas on finishing the following sentence: technology is... if you have any other ideas on
  4. physics

    A flight attendant pulls her 70 N flight bag a distance of 253 m along a level airport floor at a constant speed. The force she exerts is 40 N at an angle of 53° above the horizontal A) Find the work that she does on the flight bag B) Find the work done
  5. calculus

    I got half of this problem wrong and I DO NOT know where and how to fix. I cannot use my calculator and have to show my work. Question: You have a 500 metre roll of fencing and a large field. You want to construct a rectangular playground area. a.) using
  6. calculus help work

    a force of 1250 pounds compresses a spring 5 inches from its natural length. find the work done in compressing the spring 8 additional inches. f=kd 1250=k5 k=250 then what do i do. i have to do this the calculus way, not the physics way. by using integrals
  7. Physics

    When a block slides a certain distance down an incline the work done by gravity is 300 J. What is the work done by gravity if this block slides the same distance up the incline? a) 300 J b) zero c) -300 J d) It cannot be determined without knowing the
  8. math

    Using these integers:-1,+6,-8,+3,-2 a) Which integers have the greatest product? Show your work. b) Which two integers have the least product? Show your work. Please help I don't understand how to figure this out thank you
  9. Math/Physics

    My question is this: The potential at the surface of a sphere (radius R) is given by V_0 = k cos 3theta where k is constant. Find the potential inside and outside the sphere as well as the surface charge density (lower case sigma(theta)) on the sphere.
  10. math(trig)

    1) A 6-ft propeller turns at 1200 revolutions per minute. Compare the angular velocity of the tip with the angular velocity at a point 10 in. from its center. 2) What is the angular velocity of a point on the tread of a 15-in. diameter tire on a car
  11. MATH: Pre-Cal/Trig

    The length of a rectangular flower garden is 6 more feet than its width. A walkway 3 feet wide surrounds the outside of the garden. The total area of the walkway itself is 288 square feet. Find the dimensions of the garden.
  12. Physics/trig

    A fire hose ejects a stream of water at an angle of 33.6 ° above the horizontal. The water leaves the nozzle with a speed of 29.6 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the
  13. Physics - drwls?

    A 2000 kg truck traveling north at 38 km/hr turns east and accelerates to 55 km/hr. What is the change in the truck's kinetic energy? What is the magnitude of the change in the linear momentum of the truck? What is the direction of the change in linear
  14. Physics

    A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done
  15. physics

    A pendulum of length L=26.0 cm and mass m= 168 g is released from rest when the cord makes an angle of 65.2 degrees with the vertical. (a) How far (m) does the mass fall before reaching its lowest point. (b) How much work (J) is done by gravity as it falls
  16. physics

    A pendulum of length L = 20.8cm and mass m = 168 g is released from rest when the cord makes an angle of 65.2 with the vertical. (a) How far (m) does the mass fall before reaching its lowest point? (b) How much work (J) is done by gravity as it falls to
  17. Trig

    A ladder 35.4 feet long is leaning against an embarkment inclined 62.5 degrees to the horizontal. If the bottom of the ladder is 10.2 feet from the embarkment, what is the distance from the top of the ladder down the embarkment to the ground?
  18. trig, math

    A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with the 175-pound force?
  19. college Trig

    To find the distance from the house at A to the house at B, a surveyor measures the angle ACB, which is found to be 70°, and then walks off the distance to each house, 50 feet and 70 feet, respectively. How far apart are the houses? feet
  20. science

    Numbers 1-9 are true and false questions.Check if my answers are right and if I didn't write anything on the blank, I need help with them. Thanks!!!! _____ 1. Velocity could be reported as 50 k/hr. True 2. How far an object travels in a certain period of
  21. Physics

    Under what condition can a force act on an object and yet do no work on that object? A. The object moves with no acceleration. B. The object does not move. C. The net force on the object is 0. D. The force operates under constant power. E. None of the
  22. Chem 20

    Calculate the mass of strontium hydroxide required to make a 450-mL solution with a pOH of 4.00. Step 1: Find pOH. I found that pOH is 10. The next steps is where I'm stuck. Step 2 :Calculate the hydroxide ion concentration. Express your answer in
  23. Trig application

    I can't figure this out. A famous golfer tees off on a long, straight 459 yard par 4 and slices his drive 10 degrees to the right of the line from tee to the hole. If the drive went 288 yards, how many yards will the golfer's second shot have to be to
  24. math (trig.)

    A ferris wheel is 35 meters in diameter and boarded at ground level. The wheel makes one full rotation every 8 minutes, and at time (t=0) you are at the 3 o'clock position and descending. Let f(t) denote your height (in meters) above ground at t minutes.
  25. Trig

    Jane has a bike with a 22-inch rear wheel. The wheel sprocket is 3 inches in diameter and the pedal sprocket is 4 inches in diameter (the sprockets hold the chain.) How fast in miles per hour is she going if she pedals at a rate of 100 revolutions per
  26. trig

    The number of revolutions made by a figure skater for each type of axel jump is given. Determine the measure of the angle generated as the skater performs each jump. Give the answer in both degrees and radians. a. single axel: 1.5 b. double axel: 2.5 c.
  27. check answers pls

    1. 3(y+1) for y=2 A.6 B.9** c.7 D.8 2.d+g/h for d=35 , g=19 , and h=6 A.9** B.2.7 C.7.3 D.8 3. the cost in dollars of a field trip is 64+14n , where n is the number of people attending . what is the cost for 48 people? A. $736** B. $126 C. $896 D. $910 4.
  28. Physics

    I'm having trouble relating Work, with Electric Field, with Kinematics. The question is asking: How fast and what direction is the particle moving, given: Disk: radius = 0.1m, surface charge density = 3.7mC/m2 Particle: 4.5 mC, mass = 75 mg accelerates
  29. Art

    1. An artist places a notebook and pen in the gallery of his latest exhibition and asks viewers to leave comments about his work. He is trying to help audience members become what type of observers? A. Active Observers*** B. Reluctant Observers C. Passive
  30. Unit 4 - Memory, Thinking, and Intelligence

    research Spearman's Model of Intelligence and Gardner's Multiple Intelligences. Based on your findings, compare and contrast the two models. Provide several comparisons and several contrasts. Which of the two models do you feel is more in line with
  31. English

    I really have the following doubts. Can you see if my corrections are OK? Thank you. 1) He is expected by his friends (is wrong?) to be discharged today. I wish I hadn't got (Is this possible?) two tests tomorrow. 2) Do you always make breakfast by
  32. trig

    If tan theta = sin theta, and theta is greater than or equal to 0 and less than or equal to 2 pi. find cos theta and what is theta
  33. help with solving

    x^2+(x-2)^2 = (2x-6)^2 solve for x. thanks so much. Please keep in mind that tutors here won't simply do your work for you. I'm sure you'll get a better response if you show your work as far as you can get, so tutors will know where you get stuck. =) it
  34. Maths ( urgent help )

    20 men can do a piece of work in 24 days. After working for 6 days, an additional number of men are taken to finish the work in 21 days from the beginning. Find the number of additional men . . . I tried using variation method but the answer didn't come
  35. physics

    a book,initially at rest is pushed along a horizontal table top by a horizontal force of 2N. After 1s it has been moved 1.5m. The force of friction is 0.4N a.how much work is done on the book by the 2N force? b.how much work is done on the book by
  36. Physics

    Thank you for answering my previous questions! I have another one now in regards to the following question... An unknown potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to
  37. math

    please check my work. 1. The number of words (x) Tina can type per minute is at Least 50. write and graph and inequality. (I broke it down to these 2 choices because the A & D was incorrect) B. x is less than or equal to 50 C. x is greater than or equal to
  38. Please check my work!

    I try to write a summary for Mañana de Sol. So, can anyone please check my grammar and vocabulary? Thank you! “Mañana de Sol” dos desconocidos se encuetran en el parque y, aunque al comienzo no se dan muy bién, terminan por siendo amigos. Los dos
  39. Math

    Jordan decides to start a garden care service. He charges 20$ for the first hour and 10$ for each additional hour. He works 5 days a week and takes care of one different garden each day. How many hours will he need to work to earn at least 250$. Write and
  40. matyh

    80% of your employees work in production. What fraction of the employees work in production?
  41. English

    Hello. Will you please tell me if the following word order is possible in English: "She sometimes (?) doesn't go to work" or is it "Sometimes she doesn't go to work"? Thank you for help.
  42. Trig

    Virgil sets his boat on a 1000-yard course keeping a constant distance from a rocky outcrop. If Virgil keeps a distance of 200 yards, through what angle does he travel? If Virgil keeps a distance of 500 yards, what fraction of the circumference of a circle
  43. Trig.

    John is an Atlanta Hawks fan with seaon tickets for the past 5 years.John estimates that his seat is about 50 ft higher than the basketball court and he has calculated that he looks onto the court at an angle of depression of 20 degrees. How far away is
  44. math

    A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side is 1. 2A = h(b1 + b2)
  45. Math

    i) Predict whether the functions in each pair are equivalent by testing three different values of x. (3 marks each - show your work) ii) Determine whether the functions in each pair are equivalent by simplifying the expression on the right side. (2 marks
  46. Math

    i) Predict whether the functions in each pair are equivalent by testing three different values of x. (3 marks each - show your work) ii) Determine whether the functions in each pair are equivalent by simplifying the expression on the right side. (2 marks
  47. english

    Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. a. I must have been completely absorbed in my work, because I totally forgot about the meeting. b. Because I
  48. math

    jamie is saving money to buy a cd player that will cost $58, including tax. she has already saved $16. she can earn $6 per hour doing yard work. how many hours will jamie need to work to earn enough money to buy the cd player?
  49. Eng095

    Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. A. I must have been completely absorbed in my work, because I totally forgot about the meeting. B. Because I
  50. english

    . Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the correction is necessary. a. I must have been completely absorbed in my work, because I totally forgot about the meeting. b. Because
  51. Geography

    How are stacks, caves, blowholes, and cliffs formed Just judging by their names, I believe water erosion causes these. You can check though -- try these: http://www.answers.com/blowholes and http://www.google.com Search for stacks formation or caves
  52. Trig

    The length of the base of an isosceles triangle is one fourth the length of one of its legs. If the perimeter of the triangle is 16 inches, what is the length of the base?
  53. algebra2/trig

    Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is n 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank you
  54. algebra 2/trig

    Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank
  55. Trig

    sin(2 tan-1 7/24) (that is inverse tangent) Draw a 7 24 25 right triangle. Label the angle whose tangent is 7/24. What is its angle? What is the sin of twice that angle.
  56. Trig

    The width of the box is 9 inch more than its length and the height of the box is 1 inch less than its length write an expression for the volume of the box
  57. math

    I need help with this trig problem cotθ=-√3/3 and 3/2π≤θ≤π, find θ
  58. Math Trig Find Quadrant I II III IV

    In which quadrant is the terminal side of angle A? A = -5π/6 a. Quadrant III b. Quadrant I c. Quadrant II d. Quadrant IV
  59. science(chem)

    Commercial hydrazine is sold as a 64% solution. Using that as your starting material, how would you prepare a 5% solution of hydrazine? well if it is sold as 64% solution would that mean that it has 64g of hydrazine per 100ml of solvent(water)? and what
  60. trig

    Determine the value of cos(theta) given that cos(pi − theta) = .2 (A) p.96 (B) .2 (C) −.2 (D) −p.96 (E) None of the above.
  61. trig

    Prove (cscx+cotx)(cscx-cotx)=1
  62. Trig

    sin(70°)cos(10°) − cos(70°)sin(10°)
  63. trig

    find the value of x when: x= 5 log base 2 (1/16)+ 8 log base 3 (27)
  64. trig

    cos x/1+sin x + 1+sin x/ cos x= 2sec x
  65. trig

    (sec 8 x - 1)/(sec 4x -1) = tan 8x/tan 4x Prove it!
  66. trig

    prove this (1+cosx)/(1-cosx)=(1+secx)/(secx-1)
  67. trig

    Simplify: cos x cos x ----- + ----- sec x-1 sec x+1
  68. Trig

    prove(sinx/cosx+1)+(cosx-1/sinx)=0
  69. trig

    If sinx=3 cosx, then what is sinx∙cosx?
  70. trig

    prove: 1+cosx/1-cosx-1-cosx/1+cosx=4cotxcscx
  71. trig

    Simplify: csc^2 x sec x / sec^2 x + csc^2 x
  72. Trig

    verify the following identity: sin(x+y)*sin(x-y)=sin^2x-sin^2y
  73. Physics

    Right now in physics we are learning about electric potential energy and electric potential. My question is: P and Q are points within a uniform electric field that are separated by a distance of 0.1 m. The potential difference between P and Q is 50 V. How
  74. English

    Think About the work you completed in your reading role. Determine the ideas that would be most worthy to share in a literary discussion about Johnny Tremain. Provide an explanation for your choices. How did the role you select and the work you completed
  75. scientist

    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 daughters in her arms they weigh 40pounds and 55pounds Mrs Leuenberger weighs 145 pound (but you didn't hear that from
  76. Physics

    A 58kg skier is coasting down 25degrees slope at an initial velocity of 3,6m per second.A kinetic frictional force of 70N appores the motion.Calculate the net force acting on the skeir, (b)the work done by net force, (c)the final kinetic of the skier using
  77. Art

    Writeacher, I urgently need you to check these sentences. Thank you very much. 1)After that we are going (we'll go?which form would you use to describe your summer holiday?) on a guided tour of the science museum. 2) We'll spend some time in the city
  78. Math check my answer

    77 is what percent of 192? A. x/100= 77/192;4.01% B. x/100=77/192; 40.1% C. x/77= 100/192; 77.3% D. x/100= 192/77; 249.4% My answer is B. Please help and check my answer if I am wrong please correct me thank you.
  79. Spanish please check

    please check if I answered these questions correctly-they had to be in the past tense-not sure what number 6 is asking 1.¿Comó te sentiste ayer? Me sentí muy bien ayer. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a
  80. trig

    If cosecant of theta equals 3 and cosine of theta is less than zero, find sine of theta, cosine of theta, tangent of theta, cotangent of theta and secant of theta
  81. English

    "The Yellow Wallpaper" by Charlotte Perkins Gilman Can someone check to see if these are right? Much appreciated. I tried to include the quotes to make it a little easier. 1. The narrator's attitude towards the setting in lines 1-5 is best described as ? "
  82. Check: Geography

    1.The Soviet program of creating cotton fields in central Asia had disastrous consequences for: a. the Caspian Sea b. the Aral Sea c. Lake Baikal d. the Black Sea answer: B 2.What occurred after the fall of the Ottoman Empire? a.The Seljuk Turks conquered
  83. physics

    Which one of these statements regarding non-conservative forces is FALSE? Select one: a. A non-conservative force cannot have a potential energy defined for it. b. The work done by a non-conservative force may be either positive or negative depending on
  84. physics

    Which one of these statements regarding non-conservative forces is FALSE? Select one: a. A non-conservative force cannot have a potential energy defined for it. b. The work done by a non-conservative force may be either positive or negative depending on
  85. Math help please!!!

    1. Determine the equation of g (x) that results from translating the function f(x)=x^2+5 upward 8 units. A. g (x)= (x +13)^2 B. g (x)= ( x+8 )^2 +5 C. g (x)= x^2 -3 D. g (x)= x^2+13 I think (D.) is my answer please check over for me. 2. Determine the
  86. Chemistry

    Jack occasionally goes to work by bicycle where he exhales once per 3.00 sec. If in Jack’s every exhale is 4.50% CO2 (by volume), he exhales a total volume of 4.6 L each time, and it takes Jack 20.0 minutes to bike to work, how many grams of CO2 has he
  87. physics- response to bobpursley

    which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and
  88. computer science

    Use the Library and other resources to write a "work-from-home" policy manual for an insurance company, educational institution, or another organization concerned about protecting an individual's privacy. Your manual should include policies to cover remote
  89. Health (Ms. Sue Check Please)

    1.Kori's doctor says her muscular strength and endurance are excellent, but he worries about Kori's cardiovascular health. Kori enjoys weightlifting, softball, basketball, and bowling. Increasing the frequency of which activity will best improve Kori's
  90. trig

    Since cot x = cos x / sin x, if cot x = 1/2, with the angle x in the first quadrant, then cos x = 1 and sin x = 2 (1) State true or false. Is this a possible situation? (2) If false, explain why.
  91. trig

    write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x
  92. trig

    I have to solve for side B of a right triangle. Side A is the square root of (25-x^2) and the hypotenuse is 5. when i do A^2 + B^2 = C^2 then at the end i end up with b^2 = -x^2 but the square root of a negative number is not possible so what am i doing
  93. trig

    write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x
  94. trig

    2sinxcosx+4sin^2xcos^2x=0 solve for x in radians between [0,2pi) (I mean that it is sine squared x and cosine squared x not sine to the power of 2x or cosine to the power of 2x)
  95. trig

    write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x
  96. trig

    a 6 foot tall man is standing near a tree on level ground .if the man shadow 4 feet long .how many feet tall is the tree?
  97. 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
  98. Physics: Conversions

    Naval Question: MIDN Rabbit recently completed the NAVY PFA last Friday. During the course of CRUSHING the run and setting a new PR of 7:55, he/she performed a total of 1.1 million ft-Ibf of work. 1). Convert 1.1 million ft-Ibf of work to BTUs 2). Assume
  99. Law

    for my CSE 1010 course I solved every single problem in my text book. Sense it's a electronic file I could easily publish it to the internet. My only concern is copyrights behind all of it. All work in the file is all my work, except for a few exceptions
  100. English

    Please check my last post as well. I typed a reply. Moreover if I were to come up with an Original and creative essay title. What should it be. For the topic Banning Cellphones while driving. 1. Who is to blame? 2. Blame the cellphone 3. I just wanted to