Questions Asked on
July 7, 2012

  1. math

    compute the value of 0.2^-4 express answer numerically

    asked by Larry
  2. Statistics

    Answer the question Yes or No. Sam computed a 90% confidence interval for from a specific random sample of size n. He claims that at the 90% confident level, his confidence interval does not contain . Is this claim correct? Answer a. No b. Yes

    asked by Desperate
  3. chemistry

    A 0.115-L sample of an unknown HNO3 solution required 31.1 mL of 0.100 M Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution?

    asked by Anonymous
  4. math

    Julie spent $50 on a book. The cost of the book was $24 less than twice what she spent on a backpack. How much did the backpack cost?.

    asked by Larry
  5. Chem-help

    What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.750 L of 0.290 M NaI? Assume the reaction goes to completion.

    asked by Anonymous
  6. College Business Statistic

    One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within ±0.005 inch of the length specified by

    asked by Heather
  7. english III

    In “Luke Havergal,” what relationship has existed between Luke and the speaker? A. They were sweethearts. B. They were mother and son. C. They were sister and brother.

    asked by britny
  8. Statistics

    (1) Gluten sensitivity, which is also known as wheat intolerance, affects approximately 15% of people in U.S. Let p be the proportion in a random sample of 800 individuals who have gluten sensitivity. Find the probability that the value of p is (a) Within

    asked by Good learner
  9. Statistics

    What price do farmers get for their watermelon crops? In the third week of July, a random sample of 52 farming regions gave a sample mean of = $6.68 per 100 pounds of watermelon. Assume that is known to be $1.94 per 100 pounds. A farm brings 35 tons of

    asked by Desperate
  10. Statistics

    What price do farmers get for their watermelon crops? In the third week of July, a random sample of 51 farming regions gave a sample mean of = $7.08 per 100 pounds of watermelon. Assume that is known to be $1.80 per 100 pounds. Find a 99% confidence

    asked by Desperate
  11. math

    I hope i am on the right track. Please look at my answer so I am doing correctly. The letters of the word mathematics are written on separate pieces of paper and put in a hat. What is the probability of drawing a vowel from the hat? (vowels are a, e, i, o

    asked by Bria
  12. English

    e.g. My father reads the newspaper every day. (What is the meaning of the sentence above? #1 or #2?) 1. My father reads the same/specific newspaper every day /repeatedly. 2. My father reads newspapers every day. He reads newly delivered newspapers every

    asked by rfvv
  13. science

    why does a wadded up foil sink

    asked by lora
  14. Chemistry

    You mix 19.5 gallons of a mixture containing 12 wt% NaCl (sol'n density = 1.0837 g/cm^3) with V2-gallon sol'n that is 20 wt% NaCl (sol'n density = 1.1453 g/cm^3). Needed mixture is 19 wt% NaCl Whats the V2 in gallons? (all solutions are in water so just

    asked by Jason
  15. English

    1. She goes skiing every winter. 2. She goes skiing in winter. (What is the difference between the two? Are both the same?)

    asked by rfvv
  16. science

    What is the hydroxide-ion concentration of a 0.240 M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1 = 5.6 × 10–2 and Ka2 = 5.1 × 10–5. 6)

    asked by swapnil
  17. Math

    The sum of the ages of a brother and sister is 27. If four times the brother's age is subtracted from three times the sister's age, the difference is 11. Express your answer in terms of the symbols b and s. 27=?

    asked by Larry
  18. algebra2 HELP PLEASE

    If $8,500 is deposited in a compound interest account paying 3.9% interest annually, how much will be in the account after 12 years? round to the nearest cent.

    asked by 26kllt
  19. math

    using exactly four 4s and only addition, subtraction, multiplication, and division, write an expression that equals each of the numbers from 1 to 10. you do not have to use all the operations, and numbers such as 44 are permitted

    asked by leo
  20. physics

    In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle, very far from the gold foil, with an initial kinetic energy of 3.3 MeV heading directly for a gold atom (charge +79e). The alpha

    asked by mdave
  21. Statistics

    In the third week of July, a random sample of 61 farming regions gave a sample mean of = $6.88 per 100 pounds of watermelon. Assume that is known to be $1.72 per 100 pounds. A farm brings 30 tons of watermelon to market. Find a 98% confidence interval for

    asked by Desperate
  22. Statistics

    True or false? If the original x distribution has a relatively small standard deviation, the confidence interval for will be relatively short. Answer True False

    asked by Desperate
  23. chem 151

    You need to dissolve CaCl2 in water to make a mixture that is 31.5% calcium chloride by mass. If the total mass of the mixture is 419.0 g, what masses of CaCl2 and water should be used?

    asked by Anonymous
  24. Bio HELP!!!!

    what is the name of the process throughh which polypeptides, polysaccharides or triglycerides are catabolised (broken down)?

    asked by Jess
  25. calculus

    Can some explain how to do this problem? I tried using derivatives...but...I keep getting a different answer from what my teacher told me! A projectile is fired directly upward with an initial velocity of 144 ft/sec and its height (in feet) above the

    asked by help
  26. MATH

    Solve the following system of equations for the unknown variables. a + b = 7 a + c = 12 b + c = 15

    asked by SAMMY
  27. English

    Where is the gas station? 1. It's opposite to the flower shop. 2. It's opposite the flower shop. (Which answer is right? Are both OK? Then, which answer is commonly used?)

    asked by rfvv
  28. physics

    Suppose a cars brakes can produce an acceleration of -7m/s^2. If the car is traveling at an initial speed of 28m/s, what is the minimum distance necessary to stop the car?

    asked by james
  29. statistics

    mean cholesterol is 175mg/dl..standard deviation =20mg/dl assume approx normal distribution ..is varied. what percentage has a cholesterol level above 155mg/dl?

    asked by michelle
  30. Mat 117

    John has decided that he wants a newer car. So, he headed to the dealership, and rather than purchasing a model with 0% interest, the salesman encourages him to look at some of the new model year vehicles, with the statement, “With the 5.9% interest,

    asked by Diane
  31. Statistics

    True or False? As the degrees of freedom increase, the Student's t distribution becomes more like the standard normal distribution. Answer True False

    asked by Desperate
  32. 8th Grade English

    Basic Skills Survey???? I went on my school's website for 8th grade this what we be doing in september: English Diagnostic Basic Skills Survey Summer Reading Assessment Friendly Letter Review Business Letter i already know about the summer reading and

    asked by Laruen
  33. calculus

    A point moving on a coordinate line has position function s. Find the velocity and acceleration at the t, and describe the motion of the point during the indicated time interval s(t)=-2t^3+15t^2-24t-6 [0,5]

    asked by Anonymous
  34. statistics

    According to a website about salaries, the national average salary as of October 2003 for a human resources clerk was $29,932. We assume that the annual salaries for clerks are normally distributed with a standard deviation of $1,860. (Give your answers

    asked by holly
  35. Language Arts

    What kind of poem is Humpty Dumpty? a. Narrative b. limerick c. nonsense

    asked by Renea
  36. Physics

    Modern bowling alleys have automatic ball returns. The ball is lifted to a height of 2.50 at the end of the alley and, starting from rest, rolls down a ramp. It continues to roll horizontally and eventually rolls up a ramp at the other end that is 0.700

    asked by Sherry
  37. Physics

    When a mass is attached to a vertical spring, the spring is stretched a distance d. The mass is then pulled down from this position and released. It undergoes 53 oscillations in 30.6 s. What was the distance d? The answer is supposed to be 8.28 cm. How can

    asked by James
  38. math

    Solve the following problems using Partial Quotients a. 7752/17 b. 651/3

    asked by dan
  39. geometry

    Two rectangles are graphed on a coordinate plane, which number represents the scale used to enlarge Rectangle ABCD to Rectangle LMNO? Answer choices 1/2 1 and 1/2 2 4

    asked by Kim
  40. chemistry

    What is the wavelength of a photon that has an energy of E = 4.01×10^-19J ?

    asked by Larry
  41. Foreign languages

    I'd like you to revise these sentences. I need to include words really used when enquiring for a hotel room. Thank you very much,Writeacher. 1)My husband and I would like to spend the period from 3 August to 20 August at Your hotel. In particular, we are

    asked by John
  42. physics

    1\ Acar is moving with acceleration 200 m in 50 sec reached to velocity 10 m\sec .what the total distance the car moved in 60 sec

    asked by fatma
  43. science

    I have an older furnace dryer which is used for drying copper ore, it operates at a temperature of 1000-to 2500 degrees F.I have low concentrations of hydrogen sulfide in the area.My question is can sulfur dioxide be produced without the ore present at

    asked by pierre
  44. Physics

    A 100-g block hangs from a spring with k = 5.2 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 216 cm/s. What is the block's speed when the displacement from equilibrium is 27.0 cm? The answer is 172

    asked by Annabelle
  45. Math

    please help please show work so i can do others ok so i have to find the equation of the linethat contains given point and is parallel to the given line then write a slope intercept form if possible (8,-4) y=-1/2x+11 I also have to do the same for this

    asked by chchch
  46. XMGT.216 / Ethics

    I am needing workplace examples of ethical dilemmas involving a manager as a role model, everything I have searched so far on internet gives all other examples except this one, can you help?

    asked by Cis
  47. Chemistry

    Distillation Scale up: In an experiment 100 lb-mol of 47 lb-mol % ethanol, 53 lb mol % water sol'n is fed into distillation column and separated into two streams: 100lb-mol 0.470 lb-mol ethanol 0.530 lb-mol water goes to: steam 1: 17 lb-mol 0.890 lb-mol

    asked by Simon
  48. us history

    compare and contrast early settler's relations with native Americans in early Virginia and new England, thanks!

    asked by skye
  49. science

    step one of average pendulum was 38.0, 41.0, 35.0 period is 1.90 move bob back 15cm

    asked by lora
  50. algebra

    What is the answer for 4.(5)(5)-35+21-(-3)(-3)(-3)

    asked by ellen
  51. Math

    f(x) = (x - 0.6)2 + .66. turn into h/k form what is the quadratic regression equation using your calculator

    asked by Tony
  52. Math

    Why is the asymptote of the function in Example #1 y=2 ? ( y = 4x+3 + 2 )

    asked by Tony
  53. statistics

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would

    asked by jilla
  54. stat

    Find the area under the standard normal curve to the left of z = 1.88, P(z < 1.88). (Give your answer correct to four decimal places.)

    asked by janet
  55. medical coding

    Which of the following code categories should be chosen over codes from other chapters for the same condition? A. Complications of pregnancy B. Neoplasms C. Blood disorders D. Metabolic and nutritional diseases 2. Pyuria or bacteria in the urine should be

    asked by Anonymous
  56. physics

    1\ Acar is moving with acceleration 200 m in 50 sec reached to velocity 10 m\sec .what the total distance the car moved in 60 sec

    asked by Anonymous
  57. statistics

    First graders who misbehave in school may be more likely to be regular smokers as young adults according to a new study presented in the July 2004 issue of the American Journal of Epidemiology. After following a group of U.S. first graders for 15 years, it

    asked by jennifer
  58. statistics

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would

    asked by jennifer
  59. accounting please help!

    I have a total of 100 questions and am unsure about my answers to these ones 3. Margaret is a customer of Tammy Company. The company wrote off her account of $1,200 on August 15. On October 12, she sent in a payment of $560. What will Tammy Company record

    asked by sady
  60. physics

    a 10,000hg car rounds a curve of radius 1200ft at 50mph what is its centripetal acceleration?

    asked by John
  61. STATISTICS

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would

    asked by judy( Help needed ,Please!?
  62. geography

    who the british isles formed geologicaly

    asked by azim
  63. math

    give exact and approximate solution to the third decimal (x-6)^=18

    asked by tami
  64. Statistics

    Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of some

    asked by Desperate
  65. algebra

    Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The difference between two numbers is 3, and the sum of those two numbers is 21. What are the two

    asked by Cory
  66. physics

    suppose your car is on a 5% grade,if your car weighs 15,000N what is the component of its weight parallel to the road?

    asked by Chad
  67. Physics

    A 65kg box is sitting on a level surface, and a 208N force is pulling on the box to the right. find both the normal force and acceleration of the box

    asked by Chad
  68. Statistics

    Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61

    asked by Desperate
  69. History

    What do the colours and the symbols on the Canadian flag represent?

    asked by Anonymous
  70. algebra

    Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The sum of two numbers is 36. Their difference is 4. Determine the two unknown numbers.

    asked by keith
  71. stats

    A set of LSAT scores follows the normal curve. The average is 560, and the standard deviation is 60. Find the 80th percentile.

    asked by sheri
  72. World History

    The most common way the early river valley civilizations expanded was by. A. peaceful means. B. force of arms. C. political means. D. blending of cultures.

    asked by Tito
  73. Social Studies

    What are 3 reasons the DREAM act is fair? What are 2 examples for each reason?

    asked by Maryam (:
  74. math

    The end points of the diameter of a circle are P(-7,-4)and Q(-1,10).Find the coordinates of the center of this circle.

    asked by makhdoom tayyaba
  75. economics

    entrepreneur edward is planning to open a business selling ice cream. he knows that the price of ice cream is determined by the forces of supply and demand but wants a report outlining five specific events that can be expected to cause the equilibrium

    asked by Anonymous
  76. cjs/210

    Will someone please help me find a website to find the answer to the following questions? What are the various functions of a police agency? Compare how the functions of a police agency differ at the federal, state, and local levels. What would happen if

    asked by Picaboo
  77. CJS/230

    Will someone please hwlp me find a wesite to find the answer to the follwing questions? What is corrections accreditation? How does corrections accreditation affect the professional development of corrections officers? How can industry leaders plan for

    asked by Picaboo
  78. Grammar

    Is the word MUCH a verb?

    asked by Losa
  79. calculus

    How do I take the partial derivative of P with respect to r of the following: D ~ P = ‡”(t=1 to T)[t ~ (CF)_t/(1+r)^t ]

    asked by David
  80. spanish

    Could we walk Monday or Tuesday instead?

    asked by kathy
  81. math

    Michel is twice as old as his sister sylvia. In four years three times Micheal's age is equvialent to five times of sylvia's age. How old is Micheal now

    asked by Maryam
  82. history

    Examine the effects of World War II on the American family.

    asked by Steve