Em

Newest questions posted by Em
  1. works cited

    i did my works cited page but my teacher said its partially correct could someone please help me revise it 1888. Wikimedia Commons.English Imperial Octopus. Wikimedia Foundation. Web. “Elisa Greathed: An Account of the Opening of the Indian Mutiny at
  2. Physics

    A tennis ball of mass 58g is thrown 5m into the air before served. Calculate the velocity of the tennis ball just before it is hit with the tennis racket.
  3. HIM occupany percentage

    A total of 76,006 IP service days of care were given at University Hospital during this year. The bed counts changed from a count of 200 at the beginning of the year to 220 on March 15, and then to 230 on July 1. The count was reduced to 210 on November 15
  4. HIM math

    A total of 76,006 IP service days of care were given at University Hospital during this year. The bed counts changed from a count of 200 at the beginning of the year to 220 on March 15, and then to 230 on July 1. The count was reduced to 210 on November 15
  5. physics

    Chuck Wagon travel with a constant velocity of 0.98 miles/minute for 9.3 minutes. Chuck then decelerates at -0.11 miles/min/min for 1.8 minutes. Determine the total distance traveled by Chuck Wagon (in miles).
  6. English

    The importance of being earnest play please help me 20. Briefly explain two ways the play is either reflective of the Victorian culture or shows the influence of Restoration comedy. Respond in complete sentences. 21. Identify and explain how symbolism is
  7. Econ

    If the rate of inflation is 4% per year, how long will it take for prices to double?
  8. math

    the flight path of a firework is modelled by the function h(t)=-5(t-5)^2+127
  9. history

    need answers fast!!!!!!What impact did norbert Rilliexus invention have on sugar industries?
  10. Math

    Write a divison equation that has a solution of -20
  11. Physics trajectory

    A ball rolls off a deck at a speed of 0.7 m/s. The deck is 4.5m above the street. How long does it take for the ball to reach the street?
  12. Math

    Let n be any counting number. Using the two questions above as a guide, how many subsets does the set {1,2,3,...,n−1,n} have? Prove it as well. First question:Including itself, how many subsets does the set {1, 2, 3} have? List them. Second Question:
  13. Math

    in a survey, 15 people said they played basketball, hockey and volleyball. in addition 20 people said they played basketball and hockey. draw a venn diagram to determine how many people in the survey said they played only basketball and hockey.
  14. Physics

    If it takes 5 seconds for the baseball to fall, how far from the tower will it land? I used vertical distance formula dy=1/2(g)t^2 and got 122.5 but its one of the answers in the multiple choice. Please help.
  15. Pre alg

    Simplify: 3x^2+6-2x+5x-4x^2+9 A.-x^2+3x+15 B.7x^2+3x+3 C.x^2-3x+15 D.-x^2+7x+15 I think it's D.
  16. pre-calculus

    Rewrite the following expression as an algebraic function of x sin(arccos(x/2)) I know sine is y, which is opposite over hypotenuse. I also know that arccos is the inverse of cosine. I'm confused on what the question is asking and what to do with the x.
  17. Physics

    A block of mass 0.585 kg is placed on the end of a spring which has a stiffness of 294 N/m. It is pulled down 2.80 cm and released. What is the frequency of oscillation?
  18. Physics

    A block with a mass of 0.357 kg is attached to a spring of spring constant 599 N/m. It is sitting at equilibrium. You then pull the block down 4.80 cm from equilibrium and let go. What is the amplitude of the oscillation? I know A=D/F... I keep getting the
  19. Chemistry

    At a certain temperature, the reaction has Kc = 5 x 108. If a reaction mixture at equilibrium contains 0.26 M of H2 and 0.087 M of Cl2, what is the concentration of HCl?
  20. Physics

    Suppose under the certain conditions, the maximum force of friction that could act on a certain car was 3.35*10^3 N. The mass of the car is 857kg. What is the maximum possible centripetal acceleration of the car going around a bend? I know the equation for
  21. Physics

    A car is traveling around a bend at a speed of 12.4 m/s. The bend has a radius of curvature of 66.7 m. Friction is the only force acting towards the center of the circle. If the mass of the car is 862 kg, what is the force of friction required to make the
  22. Physics

    A ball is attached to a center post by a string that is 0.382 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.28 m/s with a radius of 0.382 m. What is the centripetal acceleration of the ball?
  23. Physics

    If the angular velocity, ω, changes from 7.07 rad/s to 24.2 rad/s over a time of 6.42 s, what is the angular acceleration, α?
  24. Physics

    If a wheel turns around 6.00 complete rotations, what would the angular displacement of that wheel be in radians?
  25. Physics

    Suppose a 300–g kookaburra (a large kingfisher bird) picks up a 84.0–g snake and raises it 2.30 m from the ground to a branch. How much work did the bird do on the snake? How much work did it do to raise its own center of mass to the branch?
  26. CALC HELP!

    Find an equation of the tangent line to the graph of y= x+ (4/x) at the point (4,5). I can't figure out the answer to this. It's supposed to be y=3/4x +2 but I can't get that.
  27. Science

    1. Which of the following explains why sunlight is important to the aquatic ecosystems? A. Sunlight provides a source of heat and energy to increase water temperatures. B. Sunlight keeps harmful bacteria from taking over aquatic ecosystems. C. Sunlight
  28. CHEM QUESTION

    In writing and balancing equations using sulfur chemists usually use the empirical formula, S, rather than the molecular formula. Why? I'm not sure how to answer this question.
  29. Math!

    Describe how you would estimate the square root of a number that is not a perfect square without using a calculator. Can someone please explain? I need some help.
  30. Math

    If city AN city BR 175 miles apart on a map the distance between the two towns is 2.5 inches what is the scale of the map
  31. CHEM HELP PLEASE

    I did a lab where I had to determine avogadro's number. I need to find the uncertainty in number of moles of stearic acid. There were 3 trials and these are the values for the # of moles of stearic acid used for each trial: 4.39E^-7 4.60E^-7 4.50E^-7 I
  32. Calculus

    Does anyone know how to solve, ln((3x-2)/(x-1))
  33. Calculus

    Could someone help with this limit problem? lim x-->1 of ((sqrt(6-x))-2)/((sqrt(10-x)-3)) I tried to rationalize the denominator and numerator but it didn't work!
  34. Calculus

    Could someone help with this limit problem? lim x-->1 of ((sqrt(6-x))-2)/((sqrt(10-x)-3)) I tried to rationalize the denominator and numerator but it didn't work!
  35. math

    A picture is 42 cm by 36 cm. A scale diagram of the picture must fit in a space that is 3 m by 2 m. Write a reasonable scale for the scale diagram.
  36. calculus

    Find a cubic polynomial such as f(x)=ax^3+bx^2+cx+d that has horizontal tangents at the points (-5,4) and (4,-4)
  37. adv functions urgent

    any math teachers around?
  38. Math

    Find the area of a triangle on a spherical surface that has a radius of 3cm and angles that measure 75degrees, 160 degrees, and 142 degrees.
  39. Math

    Find the length of the side of a right triangle side a is 40 mm the opposite is 41 mm
  40. Math

    How much glas is needed to make a fish tank that is 12 inches long, 8 inches wide, and 9 inches high? The tank is open on top.
  41. Math

    If 2.7m of ribbon costs $4.99 how much does 0.82m of ribbon cost?
  42. Chem

    Pure gold adopts a face-centered cubic crystal structure. It also has a density of 19.30g/mL. What is the edge length of gold's unit cell? What is the atomic radius of gold? I understand how to do this problem the other way: when you have the unit cell and
  43. math -ans check

    two points on the graph of a linear function are (-3,5) and (-1,4). Determine the equation of the function in slop-point form. ans: m=-1/2 I pick a point (-1,4) y-y1=m(x-x1) y-4=-1/2(x-(-1)) y-4=-1/2(x+1) Thank you ^^
  44. chem

    Calculate glucose levels using standard curve when you have absorbence for sample
  45. biochem

    How would I calculate blood glucose levels if using standard curve ...and I have three samples and their absorbence at 420 nm.
  46. Math

    Bud and frank were playing a game together and together they scored 56 points. Buds score was 8 times higher than franks what are their scores
  47. Math

    Heidi has 40 flower arrangemts. Rose arrangements are 4 times as many as tulips how many of each do I have
  48. Physics

    Your friend Josh tells you that he spends less on gas in the winter than in the summer. He also says that he has to fill up his tank less often in the winter. (a) Which of the following are possible hypotheses that can be formed from Josh’s
  49. Chemistry - Electroplating - URGENT

    "To save on production costs, most automobile bumpers are never coated with more than 200 g of chromium. Determine how much time a standard bumper should be immersed in a chromium vat." This is what I have so far- 96,485 coulombs are required to plate 1
  50. math

    there are 30 marbles in a bag; 4 blue, 10 red,6 white, 10 yellow. You randomly draw5 marbles without replacement. Find the percent of drawing 2 red marbles and at least 2 white marbles.
  51. English

    What are some good insight questions for A Separate Peace? Some topics can include: Wroter's craft Setting POV
  52. algebra 2

    x^2 - 3x + 5 = 0. solve using quadratic formula. show solution
  53. GPA

    Currently, my GPA is a 3.5 and I'm a freshman, I'm currently taking two honors classes. Do you think I'll be able to raise it up to a 4.0 by senior year?
  54. economics

    Suppose the demand curve for a monopolist is QD = 500 − P, and the marginal revenue function is MR = 500 − 2Q. The monopolist has a constant marginal and average total cost of $50 per unit. a.Find the monopolist’s profit-maximizing output and
  55. physics

    Your town is installing a fountain in the main square. If the water is to rise 20 m above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000
  56. physics

    If you fill a container with air at room temperature (400 K), seal the container, and then heat the container to 500 K, what will the pressure be inside the container? Assume atmospheric pressure equal to 100,000 Pa.
  57. chemistry

    What volume of 0.140 M HCl is needed to neutralize 2.53g of Mg(OH)_2
  58. biology

    I need to know how egg whites would react when tested in iodine and Benedict's solution.
  59. Government

    Looking for an issue and a solution where the people and the government can help
  60. Math

    40% of what is 32?
  61. Math

    laura can paint a house in 4 hours and lucky can paint a house in 2 hours. How long would it take for Laura and Lucky to paint a house together?
  62. Organic Chemistry

    How do I make an IR Spectrum of C6H12S2 (Allyl Propyl Disulfide)
  63. Grammar

    Hi beautiful people! Quick question if you are writing a congratulatory letter should you say - I would like to take the time to congratulate you on your extraordinary commitment to XXX charity. OR - I would like to tak ethe time to congratulate you for
  64. math

    Which of the following is a formula for finding the volume of a cube? A. v=e^3, where e= the edge length B. v=(lwh)^3, wherel= length,w=width andh=height C.v=6e^2, where e=the edge length D. v=b*b, where b= the area of the base I picked A since V=s^3 or
  65. Calculus

    With is the integral of (9(sinx+cosx))/sin(2x)
  66. english

    what would a thesis statement be for Old Jules by Mari Sandoz
  67. English I

    Can someone please help me with this analogy? Joints:inflamed::_______atrophy. It is a crossword and there are 7 spaces. Thanks!
  68. Chem

    when 2.31 moles of sulfur hexafluoride are synthesized from te elements, how many grams of fluorine were used PLEASEEEEE HELPPPP MEEE!
  69. Math

    Given that f(x) = 2x^2 - 8x + 9, 0 ≤ x ≤ 3. (a) Find the average value of f. (b) Find c such that f(average) = f(c).
  70. Math

    Find the volume generated if the region bounded by y = sin 2x and y = cos x, π/6 ≤ x ≤ π/2 is revolved about the line y = 2. Use the method of washers.
  71. Math

    Find the volume generated. The region is bounded by y = 4x-x^2 and y = 8x-2x^2, and is rotated about x = 2. State which method (washer, disk, cylindrical shell) is used
  72. math

    Find the area of the region between the curves y = sin x and y = x^2 - x, 0 ≤ x ≤ 2.
  73. pre-algebra

    You split $1500 between two savings accounts. Account A pays annual 5% interest and Account B pays 4% annual interest. After one year,you have earned a total of $69.50 in interest. How much money did you invest in each account?
  74. Math

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 8 sin x, y = 8 cos x, 0 ≤ x ≤ π/4; about y = −1
  75. Math

    The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. x = (y − 6)^2, x = 1; about y = 5
  76. Math

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = (64 − x^2)^(1/4), y = 0, x = 6, x = 7; about the x-axis
  77. Math

    Find the volume V of the described solid S. The base of S is a circular disk with radius 4r. Parallel cross-sections perpendicular to the base are squares.
  78. Math

    The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. y = −x^2 + 14x − 45, y = 0; about the x-axis
  79. Math

    Translate and simplify "six less than twice the sum Of a number and three. I was not sure how to set it up Is it 2(x+3)-6 Or would it be set up 2x+3-6 I can solve it once I know how to set up the equation. Confused. Thanks for your help
  80. Finite Math-Probability

    Suppose we have an urn with 10 white balls and 6 red balls, and we create an experiment by randomly selecting 6 balls from the urn. a) What is the probability that the sample has the same number of white balls as red balls? b) What is the probability that
  81. Precal

    Find the exact values of tangent and cosecant for angle theta in standard position whose terminal side passes through the point (16,-4)
  82. Pre-Calculus

    An open box is to be made from a piece of cardboard 11 in by 17 in, by cutting out a square of length x from each corner and turning up the sides. Express the volume V of the box as a function of the length x of the side of the square cur from each corner.
  83. math

    Hi I am trying to help my 4th grade daughter with homework and I am stuck with this question. Please help and explain how you got the answer. Thanks Jill's fish weighs 8 times as much as her parakeet. Together, the pets weigh 63 ounces together. How much
  84. math

    I make A snack mix by combining 3/4 of a pound of gummy bears with one pound of peanuts. I have 3 1/4 pounds of peanuts a) how many pounds of gummy bears do I need to make the snack mix? b) how many pounds of snack mix can I make? My answers are: I have a)
  85. Chemistry

    Sulfuric acid, H2SO4, is sold as a 36% aqueous solution. What is this concentration in A. Molality B. Molarity C. The Mole Fraction Please and thank you. :)
  86. Calc 2

    How to find Cross Section Area given x=5 x=-5 y= sqrt(25-x^2) y= -sqrt(25-x^2)
  87. math

    After you have worked out at the gym on a stationary bike for 49.0 minutes, the distance gauge indicates that you have traveled 15.7 miles. What was your rate in km/hr?
  88. math

    annie,betty,Cathy and Danial are going to stand on a row for taking pictures. How many ways can they stand?
  89. Economics

    Hey I've just had a mind blank. What is the term for when a business has outgrown its limits and is starting to perform badly? Thanks for the help
  90. Calc AB

    How do you simplify: (x^(3/2))(x+x^(5/2)-x^2)
  91. Legal Studies

    Hi beautiful people Is there any specific way for a conclusion to be written for a Legal essay? I know the introduction and structure of points are slightly varied and I'd just like to know if there are any pointers on conclusions. Thanks a heap Em
  92. Law

    Hi beautiful people Is there any specific way for a conclusion to be written for a Legal essay? I know the introduction and structure of points are slightly varied and I'd just like to know if there are any pointers on conclusions. Thanks a heap Em
  93. math

    For the sequence 3,8,15,24,35.... find a formula for tsubn in terms of n.
  94. History/Global Affairs

    Hi beautiful people! I'm working on an assignment talking about Australia's changing national identity in the EYES OF THE WORLD. I need to look at a particular event and or events as a way to highlight this change. The problem is that I was thinking the
  95. Chemistry

    If a gas at 0 celsius were warmed by 1 celsius ansd the pressure did not change then the volume would a. increase by 1/273 b. decrease by 1/273 c. impossible to predict
  96. English

    I have to write an english assignment about banning a reality tv show. One of the paragraphs has to be about how 1984 underpins the whole concept of the show. I chose (Next Top Model). I have found a lot of links like unacceptable standards of beauty,
  97. Physics

    A 300L water tank is 2.8m above the ground and constantly refills itself to always have 300L present. A pipe with a diameter of 12.5mm runs from it to the shower. Due to gravity, work out how many litres per minute are produced?
  98. Math

    To have a constant concentration of .25 ppm of a substance with 18,000gal/water flowing, how much would I need to add per minute? Does that make any sense? How would I go about answering that? I don't want the answer, but maybe just a push in the right
  99. English:Poetry

    Hi beautiful people :) For English we need to select a poem and write a story based on the poem. The poem I have selected tentatively is William Wordsworth's "There was a Boy". What I was wondering was whether the boy jumped off the cliff, fell off the
  100. Physics

    In unit-vector notation, what is the torque about the origin on a particle located at coordinates (0, -4.90 m, 4.04 m) due to (a) force 1 with components F1x = 2.67 N and F1y = F1z = 0, and (b) force 2 with components F2x = 0, F2y = 1.23 N, F2z = 5.41 N?

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