Questions Asked on
July 17, 2011

  1. scholarship essay

    This is for a scholarship the topic is "Why do you deserve to win this scholarship?" I am hoping that someone can proofread this and also give any tips for improvement. In addition, the essay has to be under 250 words. I believe that I deserve this

    asked by Angelina
  2. Statistics

    Construct the probability distribution for the value of a 2-card hand dealt from a standard deck of 52 cards (all face cards have a value of 10 and an ace has a value of 11). a) What is the probability of being dealt a hand that adds up to 21? b) What is

    asked by Starr
  3. geometry

    If a translation maps point (3, 2) to (4, 5); or T: (3, 2) (4, 5), then what is the image of the point (0, 0)?

    asked by katie 6
  4. Physics

    A 2000 {\rm kg} car traveling at a speed of 13 {\rm m/s} skids to a halt on wet concrete where mu_k = 0.50. How long are the skid marks? I tried doing this many times and each answer is wrong. Can someone help?

    asked by falcon306
  5. phy

    A major-league catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m. 1-If the force exerted by the catcher is 803 N, what is the mass of the ball?

    asked by pop
  6. Physics

    An antenna loosens and becomes detached from a satellite in circular orbit around the earth. Describe the antenna's subsequent motion. If it will land on earth, describe where: if not, describe hw it would be made to land on earth.

    asked by Capreeca
  7. problem

    Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1. At what temperature does benzene boil when the external pressure is 480 torr?

    asked by Anonymous
  8. Physics

    How much force does an 88 kg astronaut exert on his chair while sitting at rest on the launch pad? Answer: 860N Now the question: How much force does the astronaut exert on his chair while accelerating straight up at 14 m/s^2? What do you do first, how do

    asked by falcon306
  9. Physics

    An antenna loosens and becomes detached from a satellite in circular orbit around the earth. Describe the antenna's subsequent motion. If it will land on earth, describe where: if not, describe hw it would be made to land on earth.

    asked by Capreeca
  10. Physics

    A baseball is tossed at a steep angle into the air and makes a smooth parabolic path. Its time in the air is t and it reaches a maximum height h. Assume that air resistance is negligible. a. Show that the height reached by the ball is gt^2/8. b. If the

    asked by Allen
  11. poetry

    analysing night waitress poem by Lunda Hull. not fully understanding it.

    asked by Sarah
  12. biology: genetics

    In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings,

    asked by Candice
  13. thermodynamic

    A rigid vessel of 1m^3 contains steam at 20 bar and 400 degree C. the vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel.

    asked by Amber
  14. Operation Management

    Analysis of the output of a process has suggested that the variability is nonrandom on several occasions recently. However, each time an investigation has not revealed any assignable causes. What are some of the possible explanations for not finding any

    asked by Butch
  15. physics

    Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4

    asked by Chloe
  16. math

    Suburban Population. The following charts show the populations for two suburbs from 1980 to 1990, where x = 0 correspond to 1980, x = 2 correspond to 1982, and so on. Year x Suburb 1 y Year x Suburb 2 y 0 12,690 0 23,112 2 12,071 2 23,893 4 13,463 4 24,674

    asked by grace
  17. poetry

    how is her background significant to her sense of identity in the poem night waitress by Lynda Hull

    asked by Sarah
  18. physics

    Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4

    asked by Chloe
  19. physics

    A loudspeaker of mass 24.0 {\rm kg} is suspended a distance of h = 2.20 {\rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30 {\rm m}. What is the tension T in each of the cables? Use 9.80 {\rm

    asked by falcon306
  20. algebra

    Write the equation of the line satisfying the given condition. Perpendicular to y = 4x + 2 and passing through the point (0, -4) (Hint: Slopes of non-vertical perpendicular lines are negative reciprocal of each other.)

    asked by grace
  21. algebra

    TGIF. Chris and Terry have been trying to live within their budget but miss going out to dinner on Friday nights. They decide not to spend any nickels or quarters they receive as change for a month and save these in a jar. At the end of the second week

    asked by grace
  22. Geometry

    Triangles ABF and EDG are congruent. Triangles ABF and GCF are equilateral. AG = 24 and CG = 1/5 AB. What is the total distance from A to B to C to D to E?? Please I don't understand this

    asked by Lydia
  23. math

    A transformation T : (x, y) (x + 3, y + 1). The image of B(4, 1) is

    asked by leah
  24. Chemistry

    No its not a typo but I did put the wrong activation energy. Its suppose to be a certain reaction has an activation energy of 37.70kj/mol. At what kelvin temperature will the reaction proceed 3.00 times then it did at 303k? I was working the problem and

    asked by Josh
  25. Chemistry

    To prepare a 400 mL solution of .7500 M NaC2H3O2, how many grams of NaC2H3O2 would be needed? I am wondering if I set this up, I got an answer of .0435 g NaC2H3O2. But i'm not sure if that is right? Is that the correct answer?

    asked by becs
  26. physics

    A physical science student adds 500g of 0 degree C ice to 500g of 80 degree C coffee. What is the final temperature of the drink after thermal equilibrium is reached? How much of the ice was melted by the process? Assume coffee has same specific heat as

    asked by Heat
  27. phy

    A force of magnitude 7.50 N pushes three boxes with masses m_1 = 1.30 kg,m_2 = 3.20 kg, and m_3 = 4.90 kg .The mass is side by side. 1-Find the magnitude of the contact force between boxes 1 and 2, and 2-Find the magnitude of the contact force between

    asked by lily
  28. Physics

    A 1300 kg car is traveling along a straight road at 20 m/s. Two seconds later its speed is 24 m/s. What is the magnitude of the net force acting on the car during this time? I don't know what equation to use, and I keep getting stuck

    asked by falcon306
  29. english

    what would be a great topic for an argumentive essay

    asked by molly07
  30. math

    An artifact was found and tested for its carbon-14 content. If 88% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon-14 has a half-life of 5,730 years.

    asked by Anonymous
  31. Chemistry

    A line in the Lyman series of the hydrogen atom emission results from the transition of an electron from the n=3 level to the ground state level. a) What n level (#) is the ground state level for the hydrogen atom? b) What is the energy of this photon in

    asked by Ashley
  32. math

    A transformation T: (x, y) (x + 3, y + 1). For the ordered pair (4, 3), enter its preimage point.

    asked by mattie
  33. Chemistry

    4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks

    asked by Pamela
  34. Physics

    Two blocks are stacked one on top of the other. The coefficient of friction between the two blocks is 0.20, and the coefficient of friction between the bottom block and the floor is 0.10. What is the max force you can apple to the bottom block such that

    asked by Capreeca
  35. math

    Here are my attempts. Let me know if they are correct please> :) Thanks Question (Find quotient): 9a^2-25b^2/3a-5b My answer: 3a+5b Find Quotient: y^4+3y-5/y^2+7 My answer: y^4+3y-15/y^2+7 y^2+3y+8 Find Quotient: This one i am confused on the ^the power

    asked by Mary Anna
  36. Physics

    A rock thrown from a bridge hits the water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t. a. Show that the virtical distance of the bridge above water is 1/2gt^2. b. What is the

    asked by Allen
  37. self reflective essay

    I want to know can I write about myself in a self reflective essay ,,here is my thesis statement do you think it is ok? In this paper I will argue the life of a child being born in a divorced family was it easier or was it very hard?

    asked by Sabrina
  38. Business

    I have just started business classes but I also own a business. I was wondering if anyone has any insight to how I would know if online coupons may help or break my business?

    asked by Jim
  39. Physics

    During the war in iraq, the us military was extremely successful at detecting and striking enemy targets. many news correspondants suggested the coalition forces had a spy satellite at an altitude of only a few hundred kilometers permanently positioned 34

    asked by Capreeca
  40. Math/Algebra

    The length of Karen's living room is 2ft longer than the width. The perimeter is 80ft. Find the length and the width. Can someone please explain to me how you find the answers? Thanks a ton!

    asked by Hannah
  41. poetry

    how is her background significant to her sense of identity, in the poem night waitress by Lynda Hull

    asked by Sarah
  42. phy

    A major-league catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m. 1-If the force exerted by the catcher is 803 N, what is the mass of the ball?

    asked by lily
  43. Chemistry

    What is the concentration of NaNO2 if 2.13g of N2O3 is added to excess NaOH and the resulting solution is diluted to a total volume of 500.0 mL?

    asked by larry
  44. Physics

    Question: When a balloon is rubbed with fur, it becomes negatively charged. Explain why?

    asked by Tina
  45. Geometry

    Triangles ABF and EDG are congruent. Triangles ABF and GCF are equilateral. AG = 24 and CG = 1/5 AB. What is the total distance from A to B to C to D to E?? Please I don't understand this

    asked by lisa
  46. Economics

    What is the effect on the price of hotdogs and the quantity of hotdogs sold if: a.) The price of a hamburger rises? b.) The price of a hotdog bun rises? c.) The supply of hotdog sausages increases? d.) Consumers' incomes increase if hotdogs are a normal

    asked by London
  47. Physics

    A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.

    asked by Chloe
  48. algebra

    Short answer.Find the product.-4x(-7x^3+4x^2+8x-6)

    asked by sheba
  49. Programing

    apparently I was skipped by accident 13.2 A quadratic Julia set has the form z(n+1)=z(n)^2+c The special case where c=-.123+.745i is called Douday's rabbit fractal. Follow example 13.1, and create an image using this value of c. For the Madelbrot image, we

    asked by Lee
  50. punctuation

    48. “Did the professor say put down your pencils”? Janice asked.

    asked by Anonymous
  51. science

    can please someone check my answer. which 2 statements are true A)Morse code, Huffman coding and run-length encoding are all examples of lossy compression. B)Lossless compression uses perceptual compression techniques to ensure that all the data can be

    asked by Roger
  52. Math

    The value of a particular stock dropped from $83 in February to $48 in September. Find the rate of change in the value of the stock.

    asked by mary
  53. Math

    Prove each of the following identities. a)tan^2x = 1 – cos^2x/cos^2x b)sinx/1 – sin^2x = tanx/cosx

    asked by Kate
  54. Math

    Construct a truth table for the statement. (p ↔ q) → p

    asked by Jen
  55. Math

    Write the statement in symbolic form. Let p: The tent is pitched q: The bonfire is burning The bonfire is not burning if and only is the tent is pitched.

    asked by Jen
  56. math math

    Given the linear equation , find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation.

    asked by mary
  57. math math

    Given the linear equation y=2/3x+1, find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation

    asked by mary
  58. anth

    What evidence do you see, in the book Dancing Skeletons, of a holistic study?

    asked by david
  59. english

    This is the 1st paragraph to my essay: Social awkwardness Ever since I can remember people have always commented on my height, this made me very uncomfortable and awkward about it around my peers. I recall a time when my mother got into an argument with a

    asked by lizzie
  60. physics

    A piece of metal has a density of 0.20g/cm^3.what is the volume in cm^3 of a 1g sample of a substance?

    asked by Gift
  61. geometry

    the bases of two triangles are the same length. The altitude of the first triangle is 5 cm and the area of the second triangle is 3 times the area of the first. what is the altitude of the second triangle?

    asked by justine
  62. Math

    Solve for all possible values of x where O°≤x≤360°. tan x = -1/√3 cos x = 1/2

    asked by Kate
  63. Math

    Solve for all possible values of x where O°≤x360°. sin x=2/3. I do not understand these types of questions please answer in as much detail as you can so I can do them myself.

    asked by Kate
  64. Biology

    What is the "biological hierarchy"? Is it kingdom, phylum, class, order, family, genus, species? Or is it organelle; cell; tissue; organ; organism; species; community; population; ecosystem; biosphere? Which one is it referring to?

    asked by dannytan
  65. algebra

    -2x+5y=-15 Find the x- and y-intercepts and graph the equation plotting the intercepts. Please show all of your work.

    asked by mary
  66. math

    Write the equation of the line satisfying the given condition. Parallel to y = (2/3)x +1 and passing through the point (0, -3). (Hint: Parallel lines have the same slope

    asked by grace
  67. Biology

    In your own words, explain the second law of thermodynamics and explain why it is not violated by living organisms?

    asked by Ivy
  68. Math

    Solve for all possible values of x where O°≤x360°. sin x=2/3.

    asked by Kate
  69. algebra

    x^3+216

    asked by Laura
  70. Chemistry

    The Managing Director of a well-known company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently. One day she decides to go to her primary healthcare provider for a routine checkup. The healthcare provider

    asked by mema
  71. algebra II logarithms

    f(x)=log4 (x)+3 how could i get this so i could graph it?

    asked by jay
  72. algebra II

    use the properties of logarithms for the expression. 5^log5(7x)

    asked by jay
  73. trig

    Find the exact value of the trigonometic function at the given real number of cot(5pi/3)

    asked by Anonymous
  74. Accounting

    purchased dental equipment at 15,000 and invested cash of 500,000

    asked by leah
  75. math

    The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 97.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

    asked by Anonymous
  76. Math - Calculus

    Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its? -6x^3 + 2x^2 - 9x +3 / -5x^2 +9x - 4 1)Find the equation of the non-vertical asymptote. 2)What is the smallest value of x at which f(x)

    asked by Jacob
  77. intermediate algebra

    Short answer. Find the product. -4x(-7x^3+4x^2+8x-6)

    asked by sheba
  78. math 209

    The perimeter of a rectangle is 44ft the length is 4ft longer than the width. Find the demensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width.

    asked by chris
  79. algebra

    Essay; show all work. Find the product: (1/7x^2-2/5)(1/2x-1/2) any help would be appreciated

    asked by mike
  80. math

    Given the linear equation , find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation.

    asked by mary
  81. math

    Given p is true, q is false, and r is trus, find the truth value of the statement (~p^q)~r. Show step by step work.

    asked by Melissa
  82. Financial and ratio analysis

    I am suppose to choose at least five ratios(at least one ratio from each of the five categories and calculate each of the chosen ratios over the past three years using the financial data of Berry's Bug Blasters virtual organization, but it is so confusing

    asked by gloria
  83. chemistry

    A student adds .137 grams of nickel(II) hydroxide powder to 10.0 L of distilled water at 25C with vigorous stirring. Did all of the powder dissolve? If not, how much powder remains undissolved? If so, how much more powder can be dissolved before a

    asked by Tyler
  84. medical coding

    A condensed summary compiling information about a particular field of knowledge is a a. compendium b. compliance manual c. treatment guidelin d.pharmacopeiae

    asked by anna
  85. Math....please help

    Construct a truth table for the statement. (p ↔ q) → p

    asked by Jen
  86. math

    Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001618x4 + 0.057326x3 – 1.1367x2 + 11.46x + 2.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is

    asked by tan
  87. Chem

    A line in the hydrogen atomic line spectrum has a wavelength of 486 nm. What is the frequency of this light (in Hz)?

    asked by Sam
  88. geometry

    what is the area of parralel ? hieght is 18 and the base is 15 .. reply asap .

    asked by mary rose
  89. managerial economics

    Discuss the statistical significance of the parameter estimates aˆ, bˆ, cˆ, and dˆ using the p-values. Are the signs of bˆ, cˆ and dˆ consistent with the theory of demand?

    asked by kim
  90. chemistry

    After you preform your experiment, you determine that the Kf value for naphthalene is 6.9 . You are using 10g of naphthalene and added 1.0 g of your unknown. The the freezing point of the solvent decreased by 4.42 when the unknown was added. Knowing this

    asked by hannah
  91. calculus

    Verify the identity cot2 beta/1+csc beta=1-sin beta/sin beta.

    asked by Josh
  92. physics

    Wrap a cotton wool around a thermometre,will its temperature rise? Explain your answer please

    asked by Gift
  93. math

    4% of what = $3,000.00

    asked by marilyn
  94. statistics

    Solve the problem. Suppose a random variable x is best described by a normal distribution with μ = 60 and Find the z-score that corresponds to the value x = 69.

    asked by tit
  95. physics

    When the depth of water is 5mm,the distance is 5o,5cm,the time taken is 50s what is the overage time?

    asked by Nokukhanya
  96. pure math

    2logy=log2+logx

    asked by kelvin
  97. Math

    Determine the EXACT values of each of the following: a) sin 240° b) cos 135°

    asked by Kate
  98. math

    what is the definition of area of circle formular.

    asked by jay
  99. math

    (4y^3 − 5)^2 [4.6] Multiply. Thank you!

    asked by Mary Anna
  100. mechanics

    center og gravity of a circle

    asked by komal
  101. Math

    male childred born to women who smoke during pregnancy run a risk of violent and criminal behavior that lasts well into adulthood. Can we infer that smoking during pregnancy is responsible for criminal behavior in people?

    asked by Kathy
  102. intermediate algebra

    Essay. show all work. Add the following polynomials: (1/5x^2-1/5x-3/4)+(1/10x^2-1/2x+1/2)

    asked by sheba
  103. algebra

    Solve the inequality algebraically. Graph your solution on a number line.

    asked by grace
  104. physics

    What is the boiling and freezing points of celsius scale and kelvin

    asked by Gift
  105. math

    Translate to an equation: p $25 potted plants and s $20 shrubs total $300 Graph the equation and use the graph to determine three different combinations of potted plants and shrubs that total $300.

    asked by mary
  106. algebra

    Essay show all work. Add the following polynomials; (1/5x^2-1/5x-3/4)+(1/10x^2-1/2x+1/2) I really need help and I am thankful for your time, some tutors just mess with your head and make you more confused,if I did not need you guys I would not be here so

    asked by sheba
  107. math math

    Translate to an equation: p $25 potted plants and s $20 shrubs total $300 Graph the equation and use the graph to determine three different combinations of potted plants and shrubs that total $300

    asked by mary
  108. Stats

    What z-score corresponds to a raw score of 68.7 when mean=60 and sd=4.3

    asked by Ashley
  109. geometry

    A transformation T: (x, y) (x - 5, y + 3). The image of A(2, -1) is

    asked by janine
  110. algebra

    Determine if (5/6,-2) is a solutionto -6x-7y=9

    asked by Poochie
  111. math

    A school designer wants to create a whiteboard with the optimal dimensions to enhance learning. It is determined that if one side of the whiteboard is x + 5y inches, the other side should be x^2+3xy-4y^2 inches. Write an algebraic expression for the area

    asked by Mary Anna
  112. algebra

    Translate to an equation p $40 pants and s $20 shirts total $160

    asked by Poochie
  113. math

    (4y^3 − 5)^2 [4.6] Multiply.. Thanks :)

    asked by Ashley
  114. Chemistry

    How many grams of Ba(OH)2 must be added to 2.37L of water to make a saturated solution? I got 2.03 grams. Is this correct?

    asked by Tyler