Trig check my work please?

42,204 results, page 84

  1. Alg 2

    Solve the equation. Check for extraneous solutions. ln x + ln(x-2) = 1
  2. Math

    Solve the equation. Check for extraneous roots. 4^2x-4^x-20=0
  3. Algebra Check

    Solve the system 4x - 7y = 5 14y = 8x + 10 I got y = 10/-13 x = -5/52 but it doesn't seem right
  4. pre algebra 2

    how do you make a guess and check table?
  5. Math

    Write 3 16/25 as a percent. A)3.64% B)3.80% C)364% D)380% I think A. Can you check? THANKS
  6. Math

    How can you check the answer to a decimal multiplication problem
  7. English Check please

    Ravenous and cavernous italicized meaning is
  8. pre algebra homework check

    Solve the equation. x ^2 + 15 = 51 x=±6???
  9. Algebra 2

    Which of the following could be the equation of the graph shown below? Check all that apply.
  10. Check my precalc

    what is the f inverse of f(x)= ln(x-3) I got y= e^x - 4 Solve 8 times 10^(2x-7)=3 I do not know how to do this. Do i get 8 and 10 with the same base? How? Thanks!
  11. Ela

    Can you help me with the final check:Relating to Parents chapter 17
  12. Algebra

    When solving a rational equation, why is it necessary to perform a check?
  13. alg

    i need help solving this one (x + 4)^2/3= 9 a) 13 b) 23;-31 c) 5 d) 31;-31 also sove check for extraneous solutions (6x-5)^1/2 = (7+ 4x)^1/2 a) 1/6 b) -9 c) 6 or d) 1/5
  14. English

    What are the answers to unit 3 lesson 2 quick check
  15. MAth(algebra)

    7/2x - 5/x = 5 solve the equation check your answer
  16. Algebra 2

    Solve each equation for the variable. Check your solutions, if possible. x/2+1=6
  17. math please check

    (13-2)squared + (14-12 divided by 3) (11 * 11) + -.6 121+ -.6 =120.4
  18. Math please check

    For the function 2x-x^2 find f(4)-f(2) / (2) I got -8-0/2 so my final answer Is -4
  19. eng 111

    I submitted my answers to my questions can you check them and tell me if I got any right. /thank you
  20. math

    y=5x+7 and 3y-15x=18 they want to know how many solutions does the equation have. i got no solution. check for me please? :)
  21. algebra 2

    solve and check for estaneous solutions 4 ^3sqrt(3x-3)^2+2=38
  22. calculus

    derivative of y=ln x/x^2 can someone double check the answer 1-2lnx/x^3
  23. algebra

    Find the slope, it it exists x+7y=14 x=7y/14=2 check this problem for me please
  24. pre algebra check

    Find the product and simplify. m^2(3m^2) =3m^4????
  25. english

    can you please check if this sentence is grammatically correct? "This is rather interesting."
  26. math

    solve the equation. check the solution 5 x g -5 = 100
  27. Algebra2

    Check? Give the slope and y-intercept of the given line. 1. 2x-3y=6 = 3y = 2x-6 y = 2/3 x - 2 2. y=-2x = 2/1x + 1 3. y=3 = y=3/1x + 3 3y = 2x-6 y = 2/3 x - 2
  28. Math

    Quadratic Graphs Can you please check if my values are correct? y=x^2-4x x= -4 so y= 0 x= -3 so y= -3 x= -2 so y= -4 x= -1 so y= -3 x= 0 so y= 0 x= 1 so y= -3 x= 2 so y= 14 Thank you
  29. Mathematics

    Find the slope line of (1,4) and (2,1) -3 3•• -1/3 1/3 Check my answer
  30. Physics

    Wrote the name and subject bad in the other post, sry:: Hello, this is the last question that I can't seem to be able to solve: 1. Jenny (75 kg) goes on a ski trip. She goes down a slope that's inclined at 15*. The drag coefficient of Jenny is 0.300, the surface of contact ...
  31. Physics ASAP

    A block of weight 20 N is pushed with a force of 30 N through a horizontal distance of 5 m using a stick which is at an angle of 37° from the horizontal as shown. The coefficient of kinetic friction µk between the table and the block is 0.25. For your own reference, draw a ...
  32. physics

    A flight attendant pulls her 66 N flight bag a distance of 318 m along a level airport floor at a constant velocity. The force she exerts is 43 N at an angle of 52° above the horizontal. (a) Find the work she does on the flight bag. (b) Find the work done by the force of ...
  33. Trig

    State the vertical shift and the equation of the midline for y=4cosx-1. k = -1 y = -1 vertical shift = -1 midline equation is y=-1
  34. trig

    What is the amplitude,phase shift and period of y=sin 2x? What is the amplitude, phase shift and period of y= sin2(x + 3.14/4)
  35. trig

    given that cos(theta)= (3/5) and sin (theta)<0, find sin(2 theta) cos (2 theta) tan (2theta)
  36. trig math 30

    Find the exact value of cos 8 degrees cos 38 degrees + sin 8 degrees sin 38 degrees
  37. Trig........

    I need to prove that the following is true. Thanks (cosx / 1-sinx ) = ( 1+sinx / cosx ) I recall this question causing all kinds of problems when I was still teaching. it requires a little "trick" L.S. =cosx/(1-sinx) multiply top and bottom by 1+sinx, (creating the difference ...
  38. English

    I realized I didn't check some of the missing words... I'm posting you the sentences again. 1) Photo B shows a check-out clerk and a customer standing at the counter of a clothes department (or shop). The customer may have just bought a present for a friend because I can see a...
  39. calculus

    f(x) = 6x^2 -8x +3 how would I find the most general antiderivative of the function. I also have to check my answer by differentiation. Would I have to find the derivative first? (I got 12x -8) What are the steps to solving a problem like this? No, don't do the derivative ...
  40. PHYSICS

    A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (a) Draw a diagram for the ladder showing all ...
  41. Business English

    You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? A. Describe your reader's solution first, explain why it won't work, and then go on to describe your own solution. B. Ignore ...
  42. business communication

    You are writing to a reader who favors a different solution than the one you recommended. Which of the following is MOST likely to persuade the reader? A. Describe your reader's solution first, explain why it won't work, and then go on to describe your own solution. B Ignore ...
  43. business communication

    You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? A. Describe your reader's solution first, explain why it won't work, and then go on to describe your own solution. B. Ignore ...
  44. Child Care

    4. Which of the following is not a reason why an early childhood teacher would choose to use a virtual field trip over live, hands-on experience? A. The teacher doesn't like leaving the classroom. B. The location is too far away. C. The actual trip would be too expensive. D. ...
  45. English

    Could you please check these sentences on the Aesthetic movement I wrote. Thank you. 1) The Aesthetic Movement originated in France in the last decades of the 19th century as a reaction against the materialism and the restrictive moral code of the middle class. 2) The French ...
  46. grammar

    which is correct 1,2,or 3 Paloma did not make it to work for, her car broke down on the freeway. Paloma did not make it to work for her car, broke down on the freeway. Paloma did not make it to work, for her car broke down on the freeway.
  47. Spanish-Please help!!

    Hi I posted early and got a response but the correction suggested can't be corret. Could someone please check these answers-I had to answer in past tense-- Could some one please check these-I had to answer them in the past tense which is still confusing me-I think most of them...
  48. mathmatics probability

    I am having with the following questions and was wondering if someone might be able to show me a step by step solution to arrive at the answer. They are from Probablity and Statistics for Enginnering and the Sciences by Jay Devore 6th Edition 62) An airport limousine can ...
  49. French

    Can someone please check my work? 1. I like T-shirts. J'aime les tee-shirts. 2. Marc likes wearing shorts. Marc aime porter les shorts. 3. I am wearing a dress. Je porte une robe. 4. We love swimming suits. Nous aimons maillot de bain. 5. You like to wear shoes. Tu aimes ...
  50. English

    I really hope someone can check my sentences on Christmas holidays. Thank you very very much in advance! 1) I had planned to do a lot of things during my Christmas holidays but unfortunately I didn't get around to doing them all. ( and NOT I had no time to do all of them) 2) I...
  51. Please help with English!!!

    Which one of the following sentences does not contain a serious verb error? 1. They staying there now. 2. She want a promotion. 3. If I was younger, I'd pursue another line of work. 4. We had sang that hymn last week. Cheryl, if you read those out loud, you will quickly figure...
  52. English

    Could you please check these sentences, too? Thank you. (especially the description of the monster). 1) Before leaving for Ingolstadt his father gives him the journal, his mother wanted him to have on his graduation. 2) It contains blank leaves to be filled with the deeds of a...
  53. physics Work unit

    1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the friction as the dummy is ...
  54. Physics Work unit

    1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the friction as the dummy is ...
  55. Geometry/Trig

    A painter is placing a ladder to reach the third story window, which is 18 feet above the ground and makes an angle with the ground of 80°. How far out from the building does the base of the ladder need to be positioned? Round your answer to the nearest tenth. The base of the...
  56. Pre-Calculus-Trig

    A straight road slopes at an angle of 10 degrees with the horizontal. When the angle of elevation of the sun (from horizontal) is 62.5 degrees, a telephone pole at the side of the road casts a 15 foot shadow downhill, parallel to the road. How high is the telephone pole?
  57. physics(check my answer)

    A 60.0 kg person bends his knees and then jumps straight up. After his feet leave the floor, his motion is unaffected by air resistance and his center of mass rises by a maximum of 14.9 cm. Model the floor as completely solid and motionless. (a) Does the floor impart impulse ...
  58. trig

    A plane is flying 12,000 feet horizontally from a tall, vertical cliff. The angle of elevation from the plane to the top of the cliff is 45degrees, while the angle of depression from the plane to a point on the cliff at elevation 8000 feet is 14degrees. Find the height of the ...
  59. calculus/Trig

    Suppose you wish to express sin(3t) in terms of sint and cost. Apply the sum formula to sin(3t) = sin(t+2t) to obtain an expression that contains sin(2t)=sin(t+t) and cos(2t)=cos(t+t). Apply the sum formulas to those two expressions. Enter the resulting expression for sin(3t) ...
  60. phyiscs help please

    A 3.00*10^2 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m. (a) Find the work done by the pulling ...
  61. AP Physics C

    An earth satellite, the mass of which is 1000 kg, is in a circular orbit 1000 km above the surface of the earth. It is desired to transfer it to a circular orbit 1500 km above the surface. The amount of work that must be done to accomplish this is A. 3.43 * 109 J B. 1.71 * 109...
  62. trig

    A water-park slide covers 100 feet of horizontal space and is 36 feet high. A new replacement slide will create an angle with the water surface that measures twice that of the original slide. The new slide will use the same horizontal space as the old slide. What is the height...
  63. TIP: For this discussion response,

    Writing is a very important component of online learning. College-level writing is more formal most of your daily writing. Describe the difference between college-level writing and casual writing. In chapter 4 of the book, six steps for writing are explained. Which step do you...
  64. Science

    Can someone please check my answers and if they are wrong can you help me fix them? Thank so much!! 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. (2 points) the speeds of the objects the masses of the ...
  65. trig

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

    For 90<theta<180, cos theta = -(5/13). Which is sin theta? 1. - sqrt 13/9 2. - sqrt 9/13 3. sqrt 9/13 4. sqrt 13/9 3?
  67. physics

    A person pulls a toboggan for a distance of 20.0 m along the snow with a rope directed 25.0° above the snow. The tension in the rope is 85.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done if the same tension is directed parallel ...
  68. Physics

    A person pulls a toboggan for a distance of 30.0 m along the snow with a rope directed 15.0° above the snow. The tension in the rope is 99.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done in the same tension is directed parallel ...
  69. physics

    A person pulls a toboggan for a distance of 40.0 m along the snow with a rope directed 15.0° above the snow. The tension in the rope is 69.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done if the same tension is directed parallel ...
  70. Math Trig

    A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 40 degrees from level ground to the kite string. If she used a full 120-yard spool of string, how high, in feet, was the kite? (Disregard the string sag and the height of the ...
  71. Please help check physical science!

    Please help check my answers I really want to make a 100%! 1. A mechanical wave moves through a medium, which can be (1 point) A. a liquid. B. a solid. C. a gas. D. all of the above <-- This one 2. Which type of kind of wave causes the medium to vibrate only in a direction ...
  72. trig..

    ctgx+cosx=1+ctgx*cosx
  73. trig

    Prove: sin(x–y)sin(x+y)=sin^2(x)–sin^2(y)
  74. trig

    tan(7π/4) + tan(5π/4) Does this = 0
  75. trig

    sin 25° cos 35° + cos 25° sin 35°
  76. Trig

    If sin(theta) = 3/7, what is sin (pi/2 - theta)?
  77. Trig

    3-square root 2/ 1+square root 2
  78. Trig

    Cos(21)cos(9)-sin(21)sin(9)
  79. Trig

    8 csc theta - 2=10 + 2 csc theta I can't do it. :S
  80. Trig

    (csc(B)+cot (B))(csc(B)-cot(B))
  81. trig

    sin t /1-cos t - 1+ cos t/sin t= 0
  82. trig

    cot^5 x = cot x/sec^4 x - 2 sec^2 x +1
  83. bc

    20. You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? (Points: 5) Describe your reader's solution first, explain why it won't work, and then go on to describe your own solution...
  84. communication

    You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? Describe your reader's solution first, explain why it won't work, and then go on to describe your own solution. Ignore your ...
  85. trig

    the voltage, v, in volts, applied to an electric circuit can be modelled by the equation v=167sin(120pi)(t), where t is the time, in seconds. A component in the circuit can safely withstand a voltage of more than 120 V for 0.01 sec or less. a) determine the length of the time ...
  86. trig

    the voltage, v, in volts, applied to an electric circuit can be modelled by the equation v=167sin(120pi)(t), where t is the time, in seconds. A component in the circuit can safely withstand a voltage of more than 120 V for 0.01 sec or less. a) determine the length of the time ...
  87. Trig

    From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the oppisite side of the runway are 6 degrees and 13 degreess respectivel. The points and the tower are in the same vertical plane and the ...
  88. Physics

    A 50kg by runs up the steps to the third floor of height 10.5m in 45s.While at the third floor,the boy drops a 0.25kg ball and strike the ground 1)Calculate the rate of work done. 2)By using work-energy theorem,calculate the speed of the ball just before it strikes the ground...
  89. Airplane trig question

    An airplane, flying at a speed of 420 miles per hour, flies from point A in the direction 131 degrees for 90 min. and then flies in the direction 41 degrees for 30 min. in what direction does the plane need to fly in order to get back to point A?
  90. Math (Trig)

    A ship leaves port at noon and has a bearing of S 25° W. The ship sails at 15 knots. How many nautical miles south and how many nautical miles west does the ship travel by 6:00 P.M.? (Round your answers to two decimal places.) Miles South? Miles West?
  91. trig

    A barge is pulled by two tugboats. The first tugboat is traveling at a speed of 16 knots with heading 135°, and the second tugboat is traveling at a speed of 15 knots with heading 195°. Find the resulting speed and direction of the barge. (Round your answers to the nearest ...
  92. trig

    Ok so I have a right triangle with the hypothenuse = to 5, one side =3 and the other =4 and X is the angle between the hypothenuse and the side that =3. I'm supposed to find the sin, cos, tan, cot, sec, csc of X. I can't seem to get the answer for the sec and csc. If sin(x)=4/...
  93. Pre calculus

    1. Reference angle for -280 degrees? I do not understand why you add 360???? 2. Theta=? If reference angle =60 and theta terminates in quadrant 3. What does terminate mean? Please show work and explain why. My priority is to understand the concept ... 3. Exact value for sec ...
  94. physics

    Your friend is confused about ideas discussed in chapter 4 that seem to contradict ideas discussed in this chapter. For example, in Chapter 4 we learned that the net force is zero for a car traveling along a level road at constant velocity, and in this chapter we learned that ...
  95. Physics -- check answers please

    1. A boy pushes a car to slow it down while the car is rolling horizontally down the road. If the boy pushes backwards on the car with 10N of force as the car rolls forward 3.0m, the amount of work done by the boy is: a)-30 b)0 c)3.3 J d)30 N•m e)300J my answer: a 2. what is...
  96. college algebra help******

    You intercepted the following message from Boris and Natasha. 25 19 19 30 41 17 15 26 27 41 15 28 18 41 18 29 41 34 22 19 41 27 15 34 22 You do not now the encoding or decoding function but from previous work with Boris and Natasha you know their encoding and decoding ...
  97. Biology

    Tay-Sachs disease is a hereditary disease that kills 1 in 360,000 individuals in the general population. Individuals homozygous for the defective allele have Tay-Sachs disease and die at an early age.Studies show that heterozygous individuals have a higher rate of survival ...
  98. PE CHECK ANSWERS

    15. Who should address the needs of a patient with a mental disorder? A. speech therapist B. An internal Medicine Doctor C. A mental health Professional*** D. A medical intern 12. If you've started a lot of hobbies all at once, you should watch out for clinical depression to ...
  99. SIMPLE INTREST!

    Kenneth recentley started a new job. his starting gross monthly salary was 3200. Each year on the anniversary of his starting date, kenneth is promised a 7% raise. If keneth works for 5 years what was his gross annual income in his fifth year of work? my work: A=p(1+ i)^n A=? ...
  100. English

    Can you please check these sentences I am not sure of. Thank you. 1)The play opens with a meeting of the three witches in some sort of deserted place. The stage is empty: there are no trees, no houses,no people, absolutely nothing. 2) Shakespeare has unhooked (I need a synonym...
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