1. Health

    1. A 15-year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've eaten something that has upset my stomach.: She denies vomiting and weight loss. The patient has noticed a weight gain of 10

    asked by B B on March 31, 2010
  2. Physics

    For this problem, you are allowed to consult with other members of the class, but not with faculty and not with anyone outside the course. Simplify all your expressions. A car of mass, 2m, is going around a turn at a constant radius, R, with velocity, v0.

    asked by David on April 6, 2013
  3. Early Childhood Ed.

    Would you please check these questions and my answers? Please let me know which I have wrong. 1. Anwar is a preschooler in a family whose culture does not place much emphasis on early language development and reading. As a teacher,you would rightly see

    asked by Anonymous on November 8, 2007
  4. Calculus

    1) If y = 2x3 - 4x and dx, dt equals 4 , find dy/ dt when x = 1. 2) The area A = πr^2 of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r = 4ft? 3) A rectangular box has a square base

    asked by Deondre on October 2, 2017
  5. Physics - Damon

    Hey Damon, I posted this question a while back and you helped me figure out the first part of it. Assume that radio waves have a frequency of 6.0 × 10^7 Hz, and that the radio receiver is 25 m above the surface of the sea. What is the smallest angle theta

    asked by Sam on January 28, 2009
  6. Math

    Let x be a random variable representing the monthly cost of joining a gym. We may assume that x has a normal distribution and that the population standard deviation is $5.20. A fitness magazine advertises that the mean monthly cost of joining a gym is $35.

    asked by Alison on December 22, 2012
  7. 12 Chemistry

    What is the molar enthalpy of combustion of magnesium? This was the lab question that I was asked to find after performing a lab based on Hess' law. I can't find anywhere in my notes how to calculate this, and the text book doesn't explain their steps

    asked by Chase (sorry if this long) on March 29, 2008
  8. math

    suppose that you are a power company who must provide power to a lighthouse on an island 1 mile off shore. the nearest pole to run the line from is 2 miles up the shore from the line straight out to the lighthouse. if the line costs $1000/mile on land and

    asked by Millie on December 12, 2016
  9. MATH

    When a draftsman draws three lines that are to intersect at one​ point, the lines may not intersect as intended and subsequently will form an error triangle. If this error triangle is long and​ thin, one estimate for the location of the desired point

    asked by Anonymous on October 2, 2015
  10. Math

    An open box contains 80cm^3 and is made from a square piece of tinplate with 3cm squares cut from each of its four corners. Find the dimensions of the original piece of tinplate. A=80 A=(length)(width)(height) since length and width are the same, and when

    asked by Anonymous on October 7, 2010
  11. Algebra

    Can someone please help me with a couple questions? 1)The probability that a dessert sold at a certain cafe contains chocolate is 73%. The probability that a dessert containing chocolate also contains nuts is 25%. Find the probability that a dessert at

    asked by Lee on March 24, 2013
  12. stats (please help)

    Assume that the population of heights of male college students is approximately normally distributed with mean  of 69 inches and standard deviation  of 3.75 inches. Show all work. (A) Find the proportion of male college students whose height is

    asked by Celest on July 21, 2011
  13. math

    Suppose an employee of a company is retiring and has the choice of two benefit options under the company pension plan. Option A consists of a guaranteed payment of $1,575 at the end of each month for 10 years. Alternatively, under option B the employee

    asked by Gibbons on June 23, 2010
  14. Mathematics

    Suppose an employee of a company is retiring and has the choice of two benefit options under the company pension plan. Option A consists of a guaranteed payment of $1,575,000 at the end of each month for 10 years. Altematively, under option B the employee

    asked by Gibbons on June 22, 2010
  15. Business

    One of your relatives has come into a significant amount of money recently, and wants to invest $100,000 dollars in a stock which is listed either on the New York Stock Exchange (NYSE) or the NASDAQ. This relative has asked you to recommend three stocks,

    asked by Chase on March 11, 2012
  16. AED

    My assignment states: Find at least two instances of conflicts between the legal and ethical issues confronting the education of ELL's. For example, some states have ceased funding for bilingual education and may not instruct the ELL's in their native

    asked by Lola on May 28, 2010
  17. math

    rules find 1/4 of the input find 1/8 of the input input output 16 ___ 20 ____ 80 ____ 32 ____ 40 ____ 18 ____

    asked by alliyah tiqui on March 2, 2014
  18. Pre-Algebra

    I need help with scales, please! Q: You are making a scale drawing of a room using a scale of 1-inch:4-feet. a) The room is 14 feet by 18 feet. Find its dimensions in the drawing. b) A sofa in the room has a lenght of 6 feet. Find the length of the sofa in

    asked by Erin on February 16, 2011
  19. Finance

    Suppose a new company decides to raise a total of $200 million, with $100 million as common equity and $100 million as long-term debt. The debt can be mortgage bonds or debentures, but by an iron-clad provision in its charter, the company can never raise

    asked by Alice on October 20, 2011
  20. English

    1. Where can we buy fast food like hotdogs? - We can buy fast food like hotdogs on almost every street corner in the USA. 2. What kind of food can we find on the street? - We can find drinks, hotdogs and pretzels. 3. How much is fast food like hotdogs and

    asked by rfvv on June 28, 2014
  21. PHYSICS

    he magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. The toroid has 800 turns of large-diameter wire, each of which carries a current of 12.0 kA. (a) Find the magnitude

    asked by taylor on November 5, 2013
  22. physics

    How you find the oscillation period of a mass if not given the mass, or spring constant? A mass is attached to a vertical spring, which then goes into oscillation. At the high point of the oscillation, the spring is in the original unstretched equilibrium

    asked by Win on April 3, 2014
  23. physics

    How you find the oscillation period of a mass if not given the mass, or spring constant? A mass is attached to a vertical spring, which then goes into oscillation. At the high point of the oscillation, the spring is in the original unstretched equilibrium

    asked by Win on April 3, 2014
  24. Physics

    A car moving initially at a speed of 80 km/h and weighing 13,000 N is brought to a stop ina distance of 61 m. Find(a) the braking force and (b) the time required to stop. Assuming the same braking force, find (c) the distance and (d) the time required to

    asked by Anonymous on February 24, 2014
  25. math (statistics

    John's z-score on a college entrace exam is 1.3. If the raw scores have a mean of 480 and a standard deviation of 70 points, what is his raw score? Use a z-score formula to find John's raw score. The formula: z = (x - mean)/sd -->sd = standard deviation

    asked by Joe on January 18, 2007
  26. physics

    A 85 kg rock climber first climbs 50 m up to the top of a quarry, then descends 75 m from the top to the bottom of the quarry. If the initial height is the reference level, find the potential energy of the system (the climber plus Earth) when the climber

    asked by Merlin on May 11, 2011
  27. Physics

    You push a box along the floor against a constant force of friction. When you push with a horizontal force of 72 N the acceleration of the box is 0.43 m/s2; when you increase the force to 77 N the acceleration is 0.58 m/s2. (a) Find the mass of the box.

    asked by Bobby C on February 15, 2010
  28. Trigonometry

    If cos(a)=1/2 and sin(b)=2/3, find sin(a+b), if 1) Both angles are acute; Answer: (sqrt(15)+2)/6 ii) a is an acute angle and pi/2 < b < pi; Answer: (2-sqrt(15))/6 2. Find the exact value of the six trigonometric functions of 13pi/12. Partial answer:

    asked by Brandi on March 27, 2013
  29. Math

    Find a linear equation whose graph is the straight line with the given property. Through (2, −7) and (1, 1) I got -8x-23, I know it doesn't match, maybe its the wrong formula Find a linear equation whose graph is the straight line with the given

    asked by Jane on February 16, 2012
  30. physics

    You push a box along the floor against a constant force of friction. When you push with a horizontal force of 75 N the acceleration of the box is 0.55 m/s2; when you increase the force to 85 N the acceleration is 0.78 m/s2. (a) Find the mass of the box. kg

    asked by janie on February 13, 2010
  31. Physics

    You push a box along the floor against a constant force of friction. When you push with a horizontal force of 78 N the acceleration of the box is 0.46 m/s2; when you increase the force to 86 N the acceleration is 0.76 m/s2. (a) Find the mass of the box.

    asked by Anna on February 12, 2012
  32. Calculus

    Help my find the first derivative of these two questions, please. y = 6-e^x (Ans at the back of the book is -e^x) y = 2x+3e^x (Ans at the back of the book is 2+3e^x) And for this question find the first derivative when x=0 f(x) = (e^x+1)^2 Answer at the

    asked by Sam on June 5, 2008
  33. general

    I have to do a term paper. How are websites properly cited? You need to have the website cited in TWO places: 1. the Works Cited page that is placed after the last page of your paper, and 2. in parentheses in the text of your paper, immediately after the

    asked by ad on January 1, 2007
  34. pleazzzzee help

    oyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use the composition to find

    asked by cierra on October 27, 2015
  35. Physics

    ok so I have a question At the instatn a race began, a 57-kg sprinter was found to exert a force of 80 N on the starting lbock at 22 degrees with respect to the ground what was the horizontal acceleration of the sprinter? I got roughly 1.3 s^-2 m ok here's

    asked by Physics on July 10, 2009
  36. Statistics

    Serena Williams won the 2010 Wimbledon Ladies Singles Championship. For the seven matches she played in the tournament, her total number of first serves was 379, total number of good first serves was 256, and total number of double faults was 15. a. Find

    asked by vv on October 18, 2013
  37. Probability

    Serena Williams won the 2010 Wimbledon Ladies Singles Championship. For the seven matches she played in the tournament, her total number of first serves was 379, total number of good first serves was 256, and total number of double faults was 15. a. Find

    asked by vv on October 19, 2013
  38. Finance

    Assume that you are the assistant to the CFO of XYZ Company. Your task is to estimate XYZ's WACC using the following data: The firm's tax rate is 40%. The current price of the 12% coupon, semiannual payment, non-callable bonds with 15 years to maturity is

    asked by Ely on July 17, 2013
  39. Finance

    Assume that you are the assistant to the CFO of XYZ Company. Your task is to estimate XYZ's WACC using the following data: 1.The firm's tax rate is 40%. 2.The current price of the 12% coupon, semiannual payment, non-callable bonds with 15 years to maturity

    asked by Ely on July 16, 2013
  40. Math for Ms. Sue please!

    1. Name the solid with the description as a figure that has one base that is a rectangle and four lateral surfaces that are triangles. (1 point) triangular pyramid cone rectangular prism rectangular pyramid 2. A solid with two parallel and congruent bases

    asked by Delilah on March 7, 2013
  41. Math

    The point P = (4, 3) lies on the circle x2 + y2 = 25. Find an equation for the line that is tangent to the circle at P. This line meets the x-axis at a point Q. Find an equation for the other line through Q that is tangent to the circle, and identify its

    asked by Matilda on April 20, 2017
  42. chemistry

    for face centered unit cell, r=6 find edge in terms of r, face diagonal in terms of r, body diagonal in terms of r, edge=squareroot(8)r face=4r but i don't know how to find body diagonal

    asked by blasting on February 8, 2010
  43. Math

    The point P = (4, 3) lies on the circle x2 + y2 = 25. Find an equation for the line that is tangent to the circle at P. This line meets the x-axis at a point Q. Find an equation for the other line through Q that is tangent to the circle, and identify its

    asked by Matilda on April 20, 2017
  44. poetry

    I would say no, the mariner was not alone on his ship, because there was the wedding guest with him! I went to google and looked up the poem, read it, and it looks like he mostly says things like "The ship was cheered, the harbour cleared,Merrily did we

    asked by Jenna on February 26, 2007
  45. physics

    Question Details: A crate of mass1 on a frictionless inclined plane is attached to another crate, mass2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is suspeneded in air. The plane is inclined at an angle 36.9. Use conservation

    asked by JP on November 11, 2008
  46. Chemistry

    Hi, I am having trouble with two questions. Find the pH of the following aqueous solutions prepared by adding: a) 20mL 0.12M HCl to 10mL 0.16M CH3COOH + 20mL 0.20 KOH. b) 10mL 5.0x10^-7 M HCl to 90mL H2O For a), I thought it was a buffer solution so what I

    asked by Amy on August 4, 2010
  47. math

    I keep getting the problems wrong? Please help James deposits $6000 into a savings account which pays 1% per annum. If the account compounds monthly, find the amount in the account after 10 years. (ive gotten 6631 but that's wrong) Nick deposits $8,000

    asked by seb on August 5, 2016
  48. history

    Write a 700- to 900-word paper addressing the following aspects of the Perfection Era. Assess the accomplishments made in the women’s sphere. How did their accomplishments liberate them? How did they restrain them? Assess the accomplishments made by the

    asked by Sueann on September 28, 2009
  49. physics

    1)A ball is thrown so that it initially travels at 10ms-1 at an angle of 70 above the horizontal a)a simple model assumes that the ball is thrown from ground level and lands at the samelevel.Find the time of flightand range of the ball. b)A refined model

    asked by 0ooooooooo0 on September 28, 2017
  50. College Algebra

    f(x)=3.1ã(x+19 1.Decribe the graph be obtained using transformations of the square root function. First, vertically stretch the graph of f (x) = by the factor 3.1; then shift the results up 19 units. 2.Determine how to tell the model describes the

    asked by Brad on January 14, 2011
  51. Pre-Calculus

    The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

    asked by Lucy on September 13, 2008
  52. Pre-Calculus

    The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

    asked by Lucy on September 2, 2008
  53. Math

    A cyclist won a bicycle race for seven consecutive years. His "winning" times and "victory" margins (time difference of the second place finisher) are given in the figure below. -Year------Time--------Margin ----------(h:m:s)------ (m:s)

    asked by Kielyn on April 15, 2017
  54. Pre-Calculus

    The table below shows a frequency distribution of the number of pickup trucks sold at 85 truck dealerships in Maine over an 18-month period. Number of trucks sold/Number of dealerships: 70-90/2 90-110/11 110-130/39 130-150/17 150-170/9 170-190/7 Find the

    asked by Mary on October 30, 2008
  55. Pre-Calculus

    The table below shows a frequency distribution of the number of pickup trucks sold at 85 truck dealerships in Maine over an 18-month period. Number of trucks sold/Number of dealerships: 70-90/2 90-110/11 110-130/39 130-150/17 150-170/9 170-190/7 Find the

    asked by Mary on October 26, 2008
  56. Pre-Calculus

    The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

    asked by Lucy on August 30, 2008
  57. Chemistry

    A sample of CuSO4*5H2O was heated to 110 degrees C, where it lost water and gave another hydrate of copper (II) ion that contains 32.50% Cu. A 98.77-mg sample of this new hydrate gave 116.66 mg or barium sulfate precipitate when treated with barium nitrate

    asked by Help Please!!!!!! on June 11, 2009
  58. Pre-Calculus

    The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

    asked by Lucy on August 31, 2008
  59. math

    By selling at Rs 77, some 2 1/4% shares of face-value Rs 100 and investing the proceeds in 6% shares of face value Rs 100, selling at Rs 110 a person increased his income by Rs 117 per annum. How many shares did he sell? Two pipes running together can fill

    asked by jyoti on November 23, 2015
  60. Statistics

    An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 lb and 181 lb. The new population of pilots has normally distributed weights with a mean of 146 lb and a standard deviation of 28.9 lb.

    asked by Jana on June 15, 2013
  61. Statistics

    In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken off for each wrong answer. Recall that the quiz consists of 10 questions, and that in the class, the average number of right

    asked by Daniel on March 7, 2013
  62. STAT1

    In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken off for each wrong answer. Recall that the quiz consists of 10 questions, and that in the class, the average number of right

    asked by HELPPPPP on March 12, 2013
  63. Math

    Belmont Records produces DVD records. The fixed costs for producing a record are $160,000, and unit cost amount to 85 cents per record. The revenue is $5 per DVD. (a) How many DVDs must be sold in order to break even? (b) Find the profit or loss if 20,000

    asked by Matt on March 17, 2013
  64. precalculus

    Find the tan(x), the sin (x + pi) if it is known that cos (x)=.6 and that (3pi)/2 less than x less than 2pi. Find the sine (2x), the tan (2x), and the cos (x/2) if it is known that cos (x)=.6 and that (3pi)/2 less than x less than 2pi.

    asked by marie darling on April 10, 2013
  65. Calculus

    Find the derivative of cos(sqrt(e^(x^3)cos(x)) I got -sin(sqrt(e^(x^3)cos(x))*((sqrt(e^(x^3)cos(x)) Do I just leave the e^(x^3)cosx alone since it's "e" or do I still have the find the derivative for it?

    asked by Z32 on September 15, 2009
  66. Windows XP

    You are assisting a salesperson who has called into the Help Desk with a problem. The user’s laptop has a single hard drive, and he is currently using the laptop on the road while visiting potential sales partners. At one sales site, the technical staff

    asked by LD on October 31, 2008
  67. Physics

    Consider two masses that hang from an overhead beam. The first mass of 86.4 kg is attached to the beam using an ideal rope. The second mass of 20.8 kg is attached to the first mass with an ideal rope and hangs directly under the first mass. (a) Find the

    asked by name on April 6, 2014
  68. Geography (Ms. Sue)

    1). In what type of climate would you expect to find permafrost? 2). What type of vegetation covers most of Canada? My answers: 1). You would expect to find permafrost in a tundra and subarctic climate. 2). Tundra and coniferous forests are the types of

    asked by Anonymous on September 7, 2013
  69. 6th math

    a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

    asked by cam on March 5, 2013
  70. math

    a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

    asked by tom on March 5, 2013
  71. Algebra1

    45. Find your percent correct on a test if you received 61 points out of 69 possible. 88.4% 49. Find your percent on a test if you received 42 points out of 80 possible. 52.5% 50. Scientific notation is most effective when used with _____ a. very small

    asked by y912f on June 10, 2010
  72. college chemistry

    If I find the energy emitted by an excited sodium atom when it generates a photon.and then, When i have to find the energy emitted by 1mol of excited sodium atoms at this wvelength do I multiply the first by avogadro's number? 1mol has avogadro number of

    asked by Julie on November 9, 2008
  73. Need your help!!!! Plzzzz (literacy)

    I was ask by my literacy professor to find a sample unit plan that focuses on animals that live in the water/oceans/seas. The unit should include what the animals eat? How they survive underwater? How they move underwater? (amoung other things) She also

    asked by Ashley on March 23, 2008
  74. Physics

    The Royal Gorge bridge over the Arkansas River is 310.0 m above the river. A 59.0-kg bungee jumper has an elastic cord with an unstressed length of 62.0 m attached to her feet. Assume that, like an ideal spring, the cord is massless and provides a linear

    asked by John on February 17, 2013
  75. Statistics (Probability)

    Hi there! I have been working on this problem for quite a while and I keep getting it wrong. A deck is shuffled and three cards are dealt. (a) Find the chance that the first card is a king. Give your answer as a fraction. (b) Find the chance that the first

    asked by Lilly on June 2, 2018
  76. Chem 1

    It takes 208.4 kJ of energy to remove 1 mole of electrons from an atom on the surface of rubidium metal. What is the maximum wavelength (in nm) of light capable of removing a single electron from an atom on the surface of rubidium metal? Ok, I know I have

    asked by Rossi on October 21, 2006
  77. Algebra

    please help me with this question and check my answers. Solve the problem. A rectangle with width 2x + 5 inches has an area of 2x4 + 9x3 - 12x2 - 79x - 60 square inches. Write a polynomial that represents its length. ( I don't know how to solve this

    asked by Maddy on October 15, 2007
  78. math

    You have 7 red marbles and 5 green marbles in a bag. You select one, do not replace it then select another. Find P(red,red) and P (green,green). Write probabilites as a percent and rounded to the nearest whole percent. Find P(red,green) and P (green,red).

    asked by John on April 12, 2012
  79. Physics

    A bullet of mass m=0.060 kg hits a 5.0 kg block with an initial speed of 225 m/s. The block is connected to a spring that is attached to a wall. The friction between the block and the table is negligible. Upon impact, the bullet bounces back from the box

    asked by Rob on October 27, 2012
  80. AP Physics

    A ball is thrown horizontally from the top of a building 51 m high. The ball strikes the ground at a point 120 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 Find the x component of its velocity just before it strikes the ground.

    asked by Noah on September 11, 2012
  81. Readers Theater

    I'm trying to find a website that has a reader's theater script dealing with music. Rock music would be great, but music in general is at least a starting point. I've tried searching, but I can't find anything music-related. Help? Thank you for using the

    asked by Amy on June 14, 2007
  82. Esther Reed

    name 6 reasons why esther reed is a hero or villain http://www.answers.com/hero See definition #2. Now list the things she did that fit the definition. If you cannot list enough, then you'll have to consider that she wasn't.

    asked by Melthea on December 13, 2006
  83. Physics

    A car is going 20m/s when they see a traffic light 200m ahead turn red. The traffic light is known to stay red for 15s. The driver wants to reach the light as it turns green. It takes them 1s to press the breaks and the car slows down at a constant rate.

    asked by Confused on October 7, 2008
  84. physics

    a person is pulling a 100 lb box across a smooth horizontal surface. what is the acceleration of the box if they are pulling upward at an angle of 20° with a force of 75 lbs Well, I know that there is no friction involved because it is a smooth surface

    asked by Hanky on March 9, 2015
  85. Stats

    I have tried to find the p value and z statitcs for each of the firms below and I am so confused becuase my answers arent making any sense. The randome sample is 40, the hypothesis we are testing is a lower tail test 35, pop st deviation is 6 and level of

    asked by Maya on September 23, 2018
  86. Physics help please

    The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.055 kg and is initially at rest. The

    asked by joseph on November 7, 2010
  87. statistics

    A sample of 12 measurements has a mean of 34 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 34 each. A. Find the mean of the sample of 14

    asked by Anonymous on May 2, 2011
  88. Algebra

    Find the slope of any line perpendicular to the line through the points (0, 5) and (-3, -4). Show work Find the slope of the line through the two points: slope= (y2-y1)/(x2-x1) you do that. Now the slope of the line perpendicular to this is the negative

    asked by Linda on May 20, 2007
  89. Chemistry

    Propane gas is stored in a tank at a pressure of 15.0 atm at 22.0 °C. The tank can hold a pressure of 42.0 atm before bursting. During a fire the gas is heated to 600.0 °C. What is the gas pressure, and will the tank contain the gas without bursting? I

    asked by Drew on April 9, 2016
  90. math check and help

    A certain population has a mean of 472 and a standard deviation of 40. Many samples of size 46 are randomly selected and the means calculated. (a) What value would you expect to find for the mean of all these sample means? (Give your answer correct to

    asked by Sue 72 on June 16, 2013
  91. Physics

    The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf

    asked by Chloe on July 24, 2011
  92. Physics

    The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf

    asked by chloe on October 19, 2011
  93. Child Psychology

    I need someone to check my answers, to make sure that I have answered them correctly. My answers are marked with xxxx next to my choice out of the four choices. 1. Edwin is doing his doctoral work in the area of gifted education. One of the major

    asked by Sharon on July 14, 2011
  94. pre-algebra

    how do i solve proportions??? please help!! And how do i kno what corrisponding sides are??? To solve a proportion, use cross products. For example, the proportion = can be solved as follows: = Write the original proportion. 50 n = 3 180 Find the cross

    asked by jaimmers on March 15, 2007
  95. PHYSICS!!

    A 10.2 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 123.0 N parallel to the incline, which makes an angle of 14.6◦ with the horizontal. The coecient of kinetic friction is 0.39 and the crate is pulled a

    asked by billy on October 18, 2008
  96. Say NO! to Drugs

    2.What's one thing your school or community could do to help prevent substance abuse in your area? What is this question exactly asking? This is what I have put: One thing that my school or community could do to help prevent substance abuse in my area is

    asked by Sara on October 13, 2010
  97. Math

    Need help with adding subtracting decimals. In this unit, you learned about fractions that can be written as terminating decimals and fractions that can be written as nonterminating decimals. Create an addition word problem and a subtraction word problem

    asked by Math plz help asap! on September 21, 2016
  98. Math

    Need help with adding subtracting decimals. In this unit, you learned about fractions that can be written as terminating decimals and fractions that can be written as nonterminating decimals. Create an addition word problem and a subtraction word problem

    asked by Math plz help asap! on September 21, 2016
  99. Physics

    In the system shown in the figure, suppose the block has a mass of 2.7kg , the spring has a force constant of 500N/m , and the coefficient of kinetic friction between the block and the floor is 0.18. Find the work done on the block by the spring and by

    asked by Hannah on October 9, 2014
  100. CAN SOMEBODY HELP MEEEEEEE!!!!!!!!!!!

    Need help with adding subtracting decimals. In this unit, you learned about fractions that can be written as terminating decimals and fractions that can be written as nonterminating decimals. Create an addition word problem and a subtraction word problem

    asked by Math plz help asap! on September 21, 2016

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