Trig check my work please?

90,505 results, page 30

  1. Physics

    A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28 degrees below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. (a) What magnitude of force must the ...
  2. JOB

    WHY CAN`T KIDS WORK Kids do a lot of work. They do their school work and help with chores around the home. Some kids who live on farms also help their families with the farm work. Some teenagers earn money by baby sitting or doing chores for other people. But kids can't get ...
  3. Chemistry

    Hello. My teacher gave us a worksheet today she tried to explain it but I still don't understand it can someone help me please? 1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit. 2) GE's light bulb ...
  4. sentences

    Please note that we don't do students' homework for them. Once YOU have tried to write a sentence for your assignment, please re-post. Then someone here will be happy to give you feedback. =) who can you put a sentence that has including eveyone including everyone can you find...
  5. calculus

    How do you find: the Integral of arcsin(1 / (sqrt x^2 - 1) ) dx ?? (The integral of arcsin of one over the squareroot of x squared minus 1) So far, I've used trig integration to simplify down to arcsin(1/tanb) *secbtanb b is theta Then, I've used integration by parts. But i'm ...

    1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving 8.75 moles of sodium chloride in enough water to produce a solution of 6.22l. 2. You have a sample which consists of 428g sodium hydroxide (NaOH) ...
  7. Math - Help with radicals please

    Please show work Simplify rational 1. 4√(a^6 b^13) / 4√(a^2b) 2.√(2x^3 / 49y^4) Add or Subtract 3. x√(75xy) - √(27x^3y) Multiply 4.(√(5) - 5) (2√(5) + 2) Rationalize the denominator 5. √(25x^5 / 3y^2) 6. 5 / 2-√(7)
  8. Please Help with Physics Problems???????

  9. Physics

    A 4.00kg crate is slowly lifted to a height of 1.50m. a.How much work is done by the lifting force? b.against gravity? gravity? a, Work done is m*g*height b. the work done is against gravity. c. Because the box is lifted, the work done by gravity is negative (-mgh)
  10. mathematics-Rate

    4 men and 10 women can cut a field in 5hrs. If the men work at 5/4 the rate at which the women work. How many men will be needed to cut the field in 3hrs. #Please i need the detail explanation #thanks
  11. 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 cardiovascular endurance...

    I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of the most effective ...
  13. math

    if f(x= 5x - 1 find f(a-2) Please show me the work so I can understand how to arrive at the solution. Thank you. f(a-2)=5(a-2)-1
  14. Algebra 1

    Find the slope. -2x-9y=-29 Can you please work it out for me so I will know how to do the next one.
  15. Maths

    This is part of the indices section, how do you work it out please: (8/27) to the power of 2/3
  16. accounting

    How does delay payment of liabilities work? Please give an example too.
  17. math

    true or false: [-8]+[3]=[-8+3] show work or explain answer please.
  18. Algebra

    1). 3x + 7 = 9 2). -3(x + 5) + 3 = 12 Can you also please show the work so that I may have a better understanding.
  19. Algebra

    6000 = 200(t) Please help me solve this equation, and show the work... Thank you!!!
  20. math

    (1/x - 3/x+4) / (1/x square - 16) please help me with this question if you can show the work or explain how to solve.
  21. Algebra 2 URGENT

    Simplify: 2x+5/4x^2+2x-5/10x Please Show All Work!
  22. Algebra 2 URGENT

  23. algebra

    perform the product in simplified form please show the work. (2x+1)(3x-2)
  24. algebra 2

    please help. Simplify the square root of 7/8y and show all work
  25. algebra

    y^2-4y+3/y^2*4y+12/y^2-2y+1 2y(2y+3)/ I need some help with this problem please I can not seem to work it right.
  26. math

    Please guide me in factoring completely while showing work ty -8x^3+4x^2-2x
  27. Maths

    solve by Gauss elimination x+y-z=2 -x+3y +z=3 4x-y+3z= 5 show work for each step please
  28. science

    can anyone give me 10 examples or energy interconversions and how they work please thankyou.
  29. algebra

    convert to a logarithmic equation:8^y=4096 Please show work.
  30. Algebra 1

    How do I simplify 5(-c+3a)-c(2c+1)? Show the work not just the answer so I actually get how to do it please.
  31. Maths

    Can someone factorise 25x^2-25xy+6y^2 show your work please

    a wave has a frequency of 2 Hz. find its period ? please show work.....
  33. calculus

    Find the derivative of the function. 1. 2x+5/3x-2 2. (1-x)(1+x^2)^-1 Please show work. TYVM. :)
  34. algebra

    Given f(x) and g(x) below, find: (a) f+ g (b) f- g (c) f*g (d)f/g Please show all of your work. f(x) = ãx g(x) = 6x-5
  35. algebra

    can you please help me with this so that i can do my other problems simplify and show alll work -4x^2-3x-(x-x^2+3)
  36. algebra

    Can someone simplify this equation: -6(5-2z)+5z=8z-3(16-3z) Please help, show all your work.
  37. precalculus

    Given f(x) and g(x) below, find: (a) f + g (b) f – g (c)f*g(d)f/g Please show all of your work. f(x) = 5x^2-5 g(x) = x – 7
  38. algebra

    y=1/4x-1 1/2y=x-2 This is systems of Equations please work out the problem and explain it
  39. Math

    what is the result when 2x^2+3xy-6 is subtracted from x^2-7xy+2? show your work. please help me!
  40. Math

    what is 18x^5+3x^3+6x after it is divided by 3x? show your work. PLEASE HELP MEEE
  41. math

    I still need to show my work for the days and years please help me. Thank you.
  42. math

    Find the domain of the composite function f of g. f(x)=3/x-6; g(x)= 1/x please help and show the work as well.
  43. algebra

    find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you
  44. algebra

  45. algr.1

    1/4n+12>3/4n-4 solve the inequality and please show the steps I don't understand how to work it Thanks
  46. calculus please help me

    find derivative of: f(x)=e^2 I know that b/c e is a constant the answer is 0, but how do I show that in my work?
  47. pre-calc

    cos x+sec x=2 if you could please show all work
  48. math

    solve the following exponential equation e^x-4=-e^-x please show work
  49. math

    solve the equation. log2(x+4)-log4x=2 please show work
  50. Algebra

    I am confused on how solve this substitution problem 4y+3=3y+x 2x+4y=18 If you can, show work please (:
  51. algebra

    Given f(x)=x^2+4 and g(x)=3x+1 simplify g^-1(x)(inverse) please show work and explain
  52. Math - HELP!

    Distributive Property Expression: 6a(3a+5b - 4) Please show your work and your answer.
  53. Algebra help PLEASE?

    how do I work out problems such as 3w - 10w? 13w -7w -7 7w
  54. math

    If 12V=3W, and v(not equal)=0, then which of the following is equivalent to 2W-8V? A.0 B.4W C.-6W D.2V E.-2V please show work.
  55. math

    8h x $9/h i really need help. i do not understand. Please help, Thank You in advance My work 8/h x 9/h= 72/h i don't know what to do next
  56. Math

    What percent o the student population are girls? Please show work!
  57. Algebra 2

    Solving By Factoring 7p^2-50p=-7 Please show work for I could learn.
  58. Algebra 2

    Solving By Factoring 6x^2-13x=-6 (x-8)(x-5)=x 4x(x-6)-x(x-2)=-24 Please show work I want to learn!!!!!!
  59. Algebra 2

    Solving Quadratic Systems x^2+y^2=10 2x+y=4 Please show work I need to know how to do it
  60. Math

    What is the least common multiple of 8 and 12? PLEASE SHOW YOUR WORK IF POSSIBLE!
  61. algebra

    what is 360/100 into a decimal show work please
  62. Math

    What is 0.06 and 0.175 as a fraction?with the work out & the explanation please👍
  63. Math

    1. 2 / 9 + 1 /3 2. 1 / 7 + 3 /21 3. 2 /3 + 1/5 4. 1/4 + 2/3 5. 112 + 4 6 6. 1/2 + 2/ 5 7. 1/6 + 5 /12 8. 4/6 + 1/3 9. 1 / 5 + 1 / 8 10. 3/4 + 1 /9 11. 6 /12 + 1/3 12. 4 / 8 + 1/2 OMG help me please anyone and simplify and show all work.
  64. Math

    Simplify. Please show all your work and explain. 6a^3b^2/10a^5b^4
  65. algebra

    solve the following system of equations, please show work 3x-2y+z=12 x+3y+z=-4 2x+2y-4z=6
  66. Calculus 2

  67. chemistry/please double check

    Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...
  68. check my answers? language arts

    1. The fire's angder could no be contained. A). personification *** B.) simile C.) metaphor 2. The flames ran along the deliberate rows of vines, like long curved fingers reaching for the horizon, lighting the night sky. A). personification B). simile C). metaphor *** 3. ''We ...
  69. factoring

    let f(m)=m^3 + 3m^2 + 3m + 1 notice f(-1) = 0, so m+1 is a factor. Using division, the answer is m^2 + 2m + 1 which factors once more to (m+1)(m+1) so you have (m+1)^3 = 0 and then m = -1 Are you familiar with Pascal's triangle? Did you notice the pattern in the coefficients 1...
  70. Trig

    From a point A on the ground, the angle of elevation to the top of a tall building is 24.1 degrees. From a point B, which is 600 ft closer to the building, the angle of elevation is measured to be 30.2 degrees. Find the height of the building. PLEASE HELP ME!
  71. science- please check my work.

    Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 How much salicylic acid is required to produce 2.0 102 kg of aspirin, assuming that all of the salicylic acid is converted to aspirin? for this one i...
  72. math

    Sara has gone to work for 60 days. On 39 of those days she arrived at work before 8:30A.M. On the rest of the days she arrived after 8:30A.M What is the experimental probability that she will arrive at work after 8:30A.M the next day she goes to work
  73. English

    Can you please check these sentences for me, please? Thank you. 1) Why was the 18th century England called Augustan? 2) What were the Augustan (not Augustan) interested in? 3) Who were the first political parties and who did they descend from? Who were they supported by? 4) ...
  74. math

    I'm working on a Venn diagram - would you please check my work? The question is: A group of 95 respondents said they regularly watch Netflix, 60 said they watch Hulu, 20 said they watch neither Netflix or Hulu, and 35 said they watch both Netflix and Hulu. 1. How many ...
  75. physics

    When we studied the concept of work, we learned that work = force x distance. Now we learn that torque = force x distance. What's different about these two definitions?A) For work, distance and force are in the same direction; for torque they are perpendicular to each other.B...
  76. principles of physics

  77. 6th grade

    I need to balance the equation and show my work. Ex. N - 2.4 = 5 +2.4 = +2.4 ----------- N = 7.4 How would I show my work for: 2.3 + 4.09 = N I know the answer is 6.39 because I add 2.3 and 4.09 but how do I show the work? Thanks
  78. maths

    A and B can do a piece of work in 10 days, B and C in 15 days and A and C in 12 days. A,B and C work together to finish the work. If they are paid 15000, find the share of each?
  79. check my answer please

    A ball of mass 2kg travelling in a straight line at 4ms^-1 is acted on by a force of 3N acting in the direction of motion for 5 seconds. What is the speed of the ball after 5 seconds? vf=vi+at but a=force/mass a = 3÷2= 1.5 vf=4+1.5×5= vf=4+7.5 vf=11.5m/s^-1 Is this correct? ...
  80. Math Word Problem %

    lisa spend 3 hours driving to and from work each work day. what percent of her day does she spend driving to and from work each work day?
  81. MATHS

    A and B take 18 days to complete a work. A left the work after 10 days and B takes 12 days more to complete the work. In how many days can A complete the whole work?
  82. Math - Please Check My Answers

    Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is to the nearest 10 ...
  83. science/MH

    1)2000mg= 2g 2)104km= 0.104m 3)480cm= 0.40m 4)5.6kg= 0.56g 5)8mm= 0.8cm 6)5L= 0.5mL 7)198g= 0.198kg 8)75mL= 0.075L 9)50cm= 0.05m 10)5.6m= 5.6cm 11)16cm= 1.6mm 12)2500m= 2.5km 13)65g= 0.065mg 14)6.3cm= 0.63mm 15)120 mg= 0.12g Thank you, I just needed someone to check my work.
  84. Chemistry

    Given that W = -PatmΔV, if a gas expands into a vacuum, the sign of W is ? 1. Positive: work is being done on the gas 2. Negative: work is being done on the gas 3. Positive: work is being done by the gas 4. Negative: work is being done by the gas 5. ZERO: no work is being...
  85. physics urgent!!!

    A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and ...
  86. science and history

    How did the apollo 11 space mission pave a way for 1.) technology 2.) science 3.) America 4.) space exploration Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what you think. ...
  87. HELP!

    Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.
  88. Chemistry: check answers

    Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best ...
  89. trig

    We are doing trig identities in school. I need help with these five: 1.1+sinx/1-sinx=cscx+1/cscx-1 2.tanx+sinx/1+cosx=tanx 3.sec^2x/sin^2x=1/sin^2x+1/cos^2x 4.tan^2x/1+tan^2x=1-cos^2x 5.sinx-sin^3x/cos^3x=tanx
  90. Trig/Pre-Calc

    Could someone please help me on this problem. I'm really confused, and this assignment is due tomorrow. Solve the logarithmic equation algebraically. Approximate the result to three decimal places. log4x-log4(x-1)=1/2 To start off the equation, I know you would do the ...
  91. math

  92. science help pleaseeeeeeeeeeeeeeeee?

  93. English

    Writeacher, I left out the following sentences. Can you please check them, too? 1) How are things? I'm sorry we haven't been in touch with each other recently. I've had a busy month. We've been on holiday, and we only got back last week. 2) I spent two weeks in Spain with my ...
  94. Math

    Due to the plate tectonics, the summit of Mount Everest moves about 4.5 X 10 ^-3 meter northeastwar in one year. About how many meters does the summit of Mount Everest move in 11 years? 4.09 x 10 ^-3 4.95 x 10 ^-3 4.09 x 10 ^-2 4.95 x 10 ^-2 Can you please check this? I got D...
  95. Marketing Management

    What ae subway limited target group? Are you asking what the Subway sandwich company targets as its prime customers? Please clarify your question and we'll try to help you. Actually i am totally lost at what i am really looking for. This was suppose to be another person ...
  96. math

    Please check my answers! Simplify the product. 7x(x+4) A. 7x^2+4 B. 7x^2+28x <<<< C. 8x+4 D. 8x+11 Simplify the product. 4x (2x^3 - 7x^2 + x) A. 8x^4-28^3+4x^2 <<<<< B. 16x^4-7x^2+4x C. 8x^4-7x^2+x D. 16x^4-3x^3+4x^2 I just started learning about ...
  97. Algebra 1--Please, help me!

    1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? A: Working together, Dustin and his sister can shovel the walk in 1 1/5 hours...
  98. Physics. please help! due tomorrow!

    Let W1 represent the work required to accelerate an object on a frictionless horizontal surface from rest to a speed of v. if W2 represents the work required to accelerate the same object on the same surface from a speed of v to 2v, then which one of the following is the ...
  99. chemistry help~~~~ Please!!!

    Sodium-24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please!
  100. Trig application

    Can anyone help me with this problem? I'm so confused. Please help. A security camera is placed 27 feet from the counter at a store. The counter is 18 feet long and the camera is placed 4 feet from one end. What angle, to the nearest degree, should the camera rotate through so...
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