1. Algebra

    A. "Solve for w: (6w+1)/5≠2. Describe the solution in set notation." First I must find what number to substitute for "w" that WILL equal 2, correct? Then, determine the numbers that won't (I assume there will be far more of these)? What would be the most

    asked by Samuel on January 14, 2015
  2. Social studies

    True/fals 1. Borrowing from economics, rational choice theorists examine opportunities, costs and benefits when studying offenders’ decision-making processes. 2. In emphasizing both social disorganization and ecology, routine activities theory can be

    asked by Loe on December 5, 2009
  3. News/stereotype more

    OK I have a my example On August 16, 2013, three teens -- one white, and two black shot -- and killed Christopher Lane, an Australian attending school in Oklahoma, while he was out for a jog. Fox and Friends and The Daily Caller have compared it to the

    asked by Blaze on January 20, 2014
  4. statictics

    According to classical test theory, if the observed variance of a test is 50 and the true variance is 40, what is the estimated reliability of the test? Answer a. 0.40 b. 0.50 c. 0.80 d. 0.90

    asked by Joyce on October 27, 2013
  5. Math

    Which statement is always true about a parallelogram? A. It has 4 congruent sides B. It has 4 right angles. C. It has opposite angles that are congruent. D. The sum of any 3 angles is 360 Is it a?

    asked by Mason on April 8, 2011
  6. statistic

    27. which is true about the response variable? i. this used to be called the independent variable. ii. when graphing the data, the response variable is plotted along the y-axis only i only ii both i and ii neither

    asked by helen on January 14, 2014
  7. english

    i think that autistic people view this world better than ordinary ones. i think that they typically tend to see the world as one; everyone all linked together. is it true that they tend to see the world as one?

    asked by Anonymous on February 28, 2010
  8. statistic

    which is true about the response variable? i this used to be called the dependent variable. ii when graphing the data, the response variable is plotted along the x-axis only I only ii both I and ii neither I or ii

    asked by helen on January 14, 2014
  9. Vectors

    Verify using a specific example that (Vector a + Vector b) × (Vector a – Vector b) = 2(Vector b×Vector a). Expand to the general case to prove that the result is always true.

    asked by Adiana on February 23, 2015
  10. math

    true or false. the volume of a can ( a right circular cylinder) which has a radius of 2 inches and a height of 5 inches has a volume of 62.8 inches (pie = 3.14)

    asked by Blayke on February 10, 2010
  11. Chemistry

    Which of the following is(are) true for an exothermic reaction? [H = enthalpy] A) ƒ´H¢X > 0 B) ƒ´H¢X < 0 C) Hreactants > Hproducts D) Hreactants < Hproducts E) Hreactants = ƒ´H¢X The square means delta.

    asked by Joseph on January 30, 2011
  12. Math

    George says that if you subtract 185 degrees from an angle that measures 360 degrees, the new angle is an obtuse angle. Is this true

    asked by Nina on March 17, 2014
  13. statistics

    Computer Services wants to estimate the mean number of hours college students use on campus computers each day. They want to be within .1 hour of the true value with 99% confidence. From a previous study, the standard deviation is assumed to be .6 hour.

    asked by John Davis on December 12, 2010
  14. c+=

    true life magazine wants an analysis of the demographic characteristics of readers in c++ the marketing department has collectedreader survey records containing the age , gender , marital status ,and annual income of readers the data is stored in an input

    asked by Anonymous on April 7, 2013
  15. SPANISH

    TRUE OR FALSE In Spanish-language soap operas, affection between family and friends is never expressed. this is what i found in my book: "En las telenovelas en español también se expresa muy abiertamente el cariño (affection) entre parientes y

    asked by y912f on May 10, 2009
  16. US History

    Why is it not true that the US remained isolated from world events in the late nineteenth century? Describe some specific instances of American involvement beyond its own shores between 1865 and 1900. I have two examples but i need a third. Immigration and

    asked by Amanda on January 21, 2008
  17. Econometrics

    Hello I have this econometrics question that I have to solve without computer. (True model) yi = B0 + B1x1i + B2x2i + B3x3i + ui (Regression model) ^yi = 13.16 - 0.052(x1i - x21) + 0.2x3i SST = 1833 R^2 = known R^2 (bar) = known n = known with the standard

    asked by Pitch on June 11, 2014
  18. English 1

    Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the

    asked by Chris on January 4, 2011
  19. English 1

    Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the

    asked by Brad on January 4, 2011
  20. English1

    Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the

    asked by Brad on January 5, 2011
  21. English 1

    Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the

    asked by Brad on January 5, 2011
  22. history

    The joint-stock company, in which individuals invested and profited in proportion to the number of shares purchased, was the principal instrument of England's overseas expansion. True False [] Question #6 [] TrueFalse [][]Note to teacher: Note from

    asked by yo on March 23, 2011
  23. Science - The Sun

    What is the true thickness of each of the sun's layers (core, radiation zone, convection zone, photosphere, chromosphere, and corona)? What is the age, composition, average density, period of rotation, distance from Earth, and source of energy from the

    asked by Help on November 8, 2013
  24. history

    Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It was founded in Russia. B. It made business leaders create new methods to deal with labor issues. C. It had very little influence over the labor movement. D. It was

    asked by Sarah on March 25, 2014
  25. Statistics

    The mean of a distribution of 1000 individuals' blood pressure is 85. If this number were translated into a Z score it would be equal to +1 standard deviations. True or False? I know to calculate a Z score the formula is Z= (X-sub-i minus the mean)/

    asked by Jeff on February 11, 2014
  26. Criminal justice/Corrections

    Which of the following statements is NOT true of the prison turmoil that existed between 1935 and 1960? A. The public embraced the idea rehabilitation and reform. B. There was a tremendous influx of criminals. C. Prison administrators did not know what to

    asked by Pat on June 29, 2014
  27. TCCD

    Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was...Estimate the true proportion of regular voters with 90% confidence and comment on the results.

    asked by AB on November 22, 2013
  28. history

    Thomas Jefferson was less critical of the French Revolution than the Federalists. True or False? http://chnm.gmu.edu/revolution/d/592/ and 4th paragraph down here: http://www.whitehouse.gov/history/presidents/tj3.html

    asked by Alisa on November 15, 2006
  29. Social Studies

    Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It had very little influence over the labor movement. B. It was founded in Russia. C. It was devoted to organizing highly skilled immigrant workers. D. It made business

    asked by Abby on June 1, 2012
  30. Government US

    35. All of the following are true of the Head Start program except that it a. began as part of the War on Poverty in the 1960s . CORRECT c. has been weakened by children’s unsupportive environments at home. I DON'T KNOW d. is fully funded at the present

    asked by HM on October 10, 2011
  31. Geography

    What role do natural resources play in the economy of a country? My answer: Natural resources are a major part of world trade. This is especially true of the fossil fuels, since industry relies on them for both power, energy, and raw materials in

    asked by Anonymous on September 5, 2013
  32. safety

    true/false 1) you should never mix bleach with and other chemical. 2) each container of a chemical product and all spray bottles must have satefy information labels. 3)in osha's standards labels rate chemicals with regard to health, fire, and reactivity

    asked by cici on March 31, 2011
  33. maths

    To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails).

    asked by anonymous on April 27, 2013
  34. Proof by contradiction

    Prove that there exists no positive real number such that: 4x^2+1/4x

    asked by Anon on April 8, 2017
  35. ADHD

    Which of the following is true of the cause and treatment of ADHD ? A. Drug therapy alone is not very effective in treating hyperactivity b. academic and social skills are best treated with a combination of medication and other treatment. C. Usually caused

    asked by W on October 2, 2015
  36. accounting

    hey guyz, i've got this true/false question about trademark's amortization under U.S GAAP : Begining with 2002, U.S financial statements, U.S GAAP was changed to require amortization of trademarks on the straight-line basis. Did this happen ? if yes, then

    asked by Sarah on February 4, 2008
  37. AP European History

    Help! What is the appropriate relationship between people and their government? Does true democracy exist in Europe? Should it? do you feel that these are merely opinion based questions up for debate? or do you feel that my teacher is asking for specific

    asked by Brianna on March 29, 2009
  38. Psychology

    I am doing a psychology report where I have to determine if children of older parents are more adjusted and socially skilled. the problem is we are not supposed to actually do research we are supposed to make our findings up based our hypothesis. I made

    asked by Ashlynn on October 11, 2007
  39. Calculus

    1. Can you identify holiday periods or special events that cause the spikes in the data? 2. What holiday results in the maximum sales for this department? 3. a) Generate linear and quadratic models for this data. b) What is the marginal sales for this

    asked by Anonymous on April 12, 2017
  40. Retorical Devices

    What is the role of rhetoric in influencing people's attitudes and beliefs? Please tell us what you think, and we'll be glad to add our comments and critique. I really love this website. I just went back to college. And thank goodness fortechnology. Use

    asked by Maree on May 8, 2007
  41. health

    Which of the following statements is true? A. Fiber concentration is found only in the skins of fruits and vegetables. B. Eating soluble fiber is important for proper bowel functioning. C. Whole grains contribute to chronic constipation. D. Food processing

    asked by AK on September 16, 2008
  42. Math

    Tom bought three tee shirts for the sale price of $14.50. The three tee shirts were originally priced $3.99,$6.99, and $5.99. How much money did he save compared to the original total price of the T-shirts? Show your calculations. What percentage of the

    asked by Mark on March 7, 2018
  43. Math

    For a class test, the mean score was 65, the median score was 71 and sthe standard deviation of the scores was 7. The teacher decided to add 5 points to each score due to a grading error. Which of the folloiwng must be true for thenew scores? TH

    asked by Gail on August 15, 2011
  44. Chemistry

    True or False? a) wet metallic copper can be rinsed with acetone to help any remaining cation to metal reduction occur b)copper metal is readily oxidized by nitric acid to yield copper(II) nitrate

    asked by Anonymous on October 18, 2008
  45. Child Development

    Which of the following is TRUE regarding myelination? A) myelination begins prenatally and continues for years after birth. B) Myelination helps nerve impulses travel faster. C) The myelin sheath insulates the nerve cell. D All of these. I think the answer

    asked by Lilly on March 20, 2014
  46. physics

    1)Specular reflection obey the laws of of reflection while diffuse reflection does not? false. They both obey 2)A convex mirror forms a virtual, diminished, and upright image for all real objects regardless of the location of the object. true

    asked by Jon on April 7, 2008
  47. Probability

    Thank you for the explanation MathMate! Would the answer to this question be A? Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that

    asked by Student on March 4, 2012
  48. windows XP

    On a shared folder, Read permission allows a user to display folder names, filenames, file data, and attributes; run program files; and change folders within the shared folder. True or false?

    asked by josh on March 11, 2010
  49. biology

    Will O2 passively diffuse and bind with hemoglobin that is less than 1mm from the surface of a blood sample? The percent of hemoglobin bound with O2 is different at high (10% CO2) and low (5% CO2) CO2 concentrations when the Po2 equals 0mmHg. Is that true?

    asked by Alex on February 24, 2010
  50. english

    i not know how to expand my thought on love. i now realize that love not be unconditional. this only exist in fantasy, but in real life it not like this because you not be able to sacrifice yourself for someone else's sake, especially if they are doing a

    asked by Mohammad on February 11, 2012
  51. Biology

    Will O2 passively diffuse and bind with hemoglobin that is less than 1mm from the surface of a blood sample? The percent of hemoglobin bound with O2 is different at high (10% CO2) and low (5% CO2) CO2 concentrations when the Po2 equals 0mmHg. Is that true?

    asked by Alex on February 24, 2010
  52. science

    Would iron be considered a substance or a mixture? How about blood? Iron is: http://en.wikipedia.org/wiki/Iron substance is a very general term: See definition 3: http://www.m-w.com/dictionary/substance Now blood is living tissue and as such very complex.

    asked by ???? on June 4, 2007
  53. linguistics

    Question Consider the following sentences: (a) River Song is an archaeologist from the future. (b) River Song has a screwdriver. Based on these two sentences, which of the following is true? A. (a) entails (b) B. (b) entails (a) C. (a) entails (b) and (b)

    asked by Marcella on March 27, 2011
  54. statistics

    A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which

    asked by April on May 1, 2014
  55. Math

    8 divided by 4-2+5 divided by 3+10 divided by 24 divided by 2+10-16 divided by 2 =0 Put brackets around numbers to make sentance true.

    asked by Suzan on October 28, 2010
  56. chemistry

    Which of the following is true of a substance with a pH of 11.0? A. The substance is an acid. B. The substance is a base. C. The substance is neutral. D. The substance is a transition metal. I think A

    asked by Keri on November 10, 2012
  57. Maths A

    Sue was sailing in the area shown on the chart on 3 March 2013. At 9:00 a.m., she sighted the antenna mast on Wellings Island on a bearing of 180°T. Sue also took a sighting to the lighthouse on Abby Island and found it was at an angle of 098°M. (i) Sue

    asked by Bella on March 16, 2013
  58. English

    1. He broke the window on purpose. It is bad that he broke the window on purpose. I think it bad that he broke the window on purpose. I think it bad for him to have broken the window on purpose. (Are they all grammatical?) 2. Honesty is the best policy. It

    asked by rfvv on November 1, 2016
  59. history,college

    What was the distinction between natural and supernatural events in the medieval world? (One of the questions that I have to answer in an essay regarding Robert Bartlett's book 'The Natural and the Supernatural in the Middle Ages) My answer: Natural events

    asked by Alex on September 26, 2016
  60. Chemistry

    1. According to the collision theory of chemical reactions: A. High energy collisions result in few successful reactions as there isn’t sufficient time for the products to react. B. High energy collisions lead to the successful formation of products. C.

    asked by Ken on October 16, 2012
  61. English

    This is the second and last stanza of the poem "Preludes" I need to rephrase. Thank you very much for your help. The morning comes to consciousness Of faint stale smells of beer From the sawdust-trampled street With all its muddy feet that press To early

    asked by Franco on February 9, 2010
  62. Management

    just check for accuracy please? 3. Which one of the following situations is an example of overall cost leadership? A. A dress manufacturer wants to make its product unique in its category. B. A company that manufactures school desks is looking for ways to

    asked by anthony on May 23, 2015
  63. Human Resource Management

    Please look over my work for accuracy. thank you 3. Which one of the following situations is an example of overall cost leadership? A. A dress manufacturer wants to make its product unique in its category. B. A company that manufactures school desks is

    asked by Nikki on March 24, 2015
  64. history

    Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It was founded in Russia. B. It made business leaders create new methods to deal with labor issues. C. It had very little influence over the labor movement. [D. It was

    asked by Kelly on February 26, 2014
  65. Conclusions

    You expect to get forty miles to the gallon in that? Why, that old wreck has a monster V8; besides, it's fifty years old and needs an overhaul. I state possibly true or possibly false due the gasoline that was made then vs. now. Also, cars or trucks in

    asked by Worship on August 13, 2008
  66. gr 12 chem

    true or false- correct/explain those that is false Benzene is generally more reactive than alkanes and less reactive than alkenes because of the bonding in its aliphatic ring The polymer produced from polymerization of H2NCH2COOH is......? Write out the

    asked by shelly on March 9, 2010
  67. math (Gaussian n! formula)

    I'm trying to figure out the generalized form of the Gaussian n-factorial (n!) formula. I keep seeing n!= n(n+1)/2 but that's not working. For example: 5!= 120 but 5(6)/2 or 6(5/2) is 15; a far cry from 120. I don't understand what I'm doing wrong;

    asked by John on October 2, 2010
  68. chem

    A) Athletes that have to compete at high altitudes often go to the location and train for a month or so at these reduced pressures. This would be true of mountain climbers as well. What happens to the body that allows it to compensate ( over this period of

    asked by G on November 28, 2011
  69. Cosmology

    Which of the following statements is not true of spiral arms: they tend to trail the rotation of the galaxy they are sites of star formation they are amplified by resonances between the epicyclic frequencies of stars and the angular frequency of the spiral

    asked by C on March 1, 2013
  70. Math

    Help lesson 10 tools of geometry help been on to 1 hour plz help!no pics 1.what is the Vaule of x in the diagram shown below 2.which term correct ly describes the figure shown below 3.which statement is true 4.which is rhe best description of triangles ABC

    asked by Cooldude on February 27, 2018
  71. Science

    Which is true please help? A) When international comparative data is normalised it is related to the size of the population of the respective countries. B) The Trendalyzer visualisation in Gapminder World would be unsuitable for visualising how the number

    asked by Subash on April 6, 2011
  72. statistics

    A university dean wishes to estimate the average number of hours his part-time instructors teach per week. The standard deviation is 2.6 hours. How large a sample must be selected if he wants to be 95% confident of finding whether the true mean differs

    asked by bob on March 31, 2011
  73. SPANISH

    TRUE OR FALSE All pharmacies in Latin America operate in much the same way as do those in U.S. false? "En algunas farmacias, también ponen inyecciones. Si te enfermas y sabes lo que necesitas, puedes ir a una farmacia donde se ve el letrero inyectología

    asked by y912f on May 10, 2009
  74. English

    Question about the short story the Wager by Anton Chekhov: The climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. True or False I am really

    asked by Aivar on October 10, 2014
  75. US GOVernment

    Which of the following is NOT true of third parties? a. They have never gotten over 10 percent of the popular vote. b. They are formed by independents. c. A majority of Americans favors the idea of a third party. d. They have seldom won electoral votes in

    asked by HM on December 8, 2011
  76. world history A

    The earliest societies of Mesopotamia believed their rulers had divine right (1). As these societies grew in size, more complex governments and bureaucracies emerged (2). As a result, ancient Mesopotamia became the birthplace of a secular society that

    asked by Reed can you help please on September 26, 2017
  77. US history

    1. In the early years of the war, all reports coming to the USA had to be “cleared” through England. 2. In the 1916 presidential election, Republicans used the slogan “He kept us out of war” against Wilson. 3.Wilson’s Fourteen Points called for

    asked by Lisa on March 4, 2014
  78. statistics

    Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the

    asked by fm on April 5, 2014
  79. chemistry

    The earliest societies of Mesopotamia believed their rulers had divine right (1). As these societies grew in size, more complex governments and bureaucracies emerged (2). As a result, ancient Mesopotamia became the birthplace of a secular society that

    asked by malia on September 26, 2017
  80. Statistics

    According to internal testing done by the Get-A-Grip tire company, the lifetime of tires sold on new cars is normally distributed with a mean of 23,000 miles, with a standard deviation of 2500 miles. If the claim by Get-A-Grip is true, what is the mean of

    asked by Brianna on October 30, 2013
  81. Language Arts 8A

    Please help me by checking these answers. It would really help me because I need to get my grade up. I star my answers. 1. When MacNeil asks, "When before human history has so much humanity collectivity surrendered so much of its leisure to one toy, one

    asked by Emmy on November 3, 2014
  82. Pyschology

    can anyone help me with this. I can't think of anything or explain to me. Post an example of a simple experiment of your own creation by following this format: I would like to investigate the effects of _____________ on this behavior: _____________. Half

    asked by Jeannie on February 8, 2011
  83. Psychology

    can anyone help me with this. I can't think of anything or explain to me. Post an example of a simple experiment of your own creation by following this format: I would like to investigate the effects of _____________ on this behavior: _____________. Half

    asked by Jeannie on February 7, 2011
  84. Pre-algebra

    Say that you have a triangle with sides a = 20, b = 48, and c = 51. True or false: this triangle is a right triangle.

    asked by Olivia on May 4, 2010
  85. Algebra

    For all real numbers a and b, 2a • b = a2 + b2 Is this true or false False a=1, b=2=>4=5 false

    asked by Trish on August 30, 2015
  86. math

    How do you make this this true? 26 = 5 + 3 squared - 6 x 7 22 = 5 + 3 squared - 6 x 7 406 = 5 + 3 squared - 6 x 7

    asked by Ryan on September 27, 2016
  87. chemistry

    In a buffer solution, if [Aƒ{] < [HA], which of the following must be true? a. pH < pKa b. pH = pKa c. pH > pKa d. pH < 7.00 e. pH > 7.00

    asked by miller on November 10, 2010
  88. math

    show that sin ((pi)/(3))+((pi)/(6)) = sin[pi/3] + sin[pi/6] is NOT a true statement.

    asked by Steve on March 31, 2013
  89. Calculus

    1. Find an ordered pair that represents 6 vector v - 5 vector w if vector v =(9,5) and vector w = (6,9). 2. Find an ordered triple that represents 6 vector y + 4 vector z if vector y = (2,6,8) and vector z = (7,-2,6) 3. Find the magnitude of vector WX for

    asked by anon on August 30, 2012
  90. technology

    1. Science is the body of knowledge and methods produced by engineering. True False 2. Technology changes society. True False 3. Although engineers do not always complete the steps of design process in the same order which of the following is almost always

    asked by jacob on September 10, 2018
  91. algebra 1

    Label each statement true or false if false correct the underlined portion.If -4-5. If this is underlined |y+8|+2=6,then this not underlined y+8=_+4. Translate and solve. the absolute value of three times a number,n,is greater than 15.

    asked by janet on July 13, 2012
  92. physics

    True/False (#1 only) 1)The horizontal motion of a horizontally launched projectile affects its vertical motion. False 2)The path of a projectile through space is called its. Trajectory

    asked by Jon on April 2, 2008
  93. Math

    write the converse and contrapositive for the conditional statement below. decide whether each of the three statements is true or false. provide a counterexample for any false statement. If n is a prime number, then n+1 is an even number

    asked by bobby on December 18, 2010
  94. phy

    A body hangs from a spring balance supported from the roof of an elevator. If the elevator has an upward acceleration of 3ms−2 and the balance reads 50 N, what is the true weight of the body?

    asked by samson on August 13, 2014
  95. abnormal behavior

    1. Some criteria used for reaching a diagnosis cannot be observed directly 2. Personality disorders can be similar to each other. 3. People with different personalities can be given the same diagnosis 4. Do you think that personality disorders are true

    asked by Ron on December 19, 2013
  96. chemistry help

    Which of the following is true of the solubility product constant? A. It is the product of the initial concentrations of the ions in a solution. B. It is an equilibrium constant. C. It is an equilibrium position. D. Its value changes in the presence of a

    asked by emma on September 10, 2016
  97. Math

    write the converse and contrapositive for the conditional statement below. decide whether each of the three statements is true or false. provide a counterexample for any false statement. If n is a prime number, then n+1 is an even number

    asked by bobby on December 17, 2010
  98. Science

    Which of the following is true about the single-celled paramecium? A. It is an example of a higher form of animal B. It has life functions similar to ours C. It lacks the ability to circulate D. It lacks life functions

    asked by Jack on July 31, 2018
  99. chemistry

    Which of the following is true of the solubility product constant? A. It is the product of the initial concentrations of the ions in a solution. B. It is an equilibrium constant. C. It is an equilibrium position. D. Its value changes in the presence of a

    asked by emma on September 10, 2016
  100. physics

    A body hangs from a spring balance supported from the roof of an elavator. If the elavator has an upward acceleration of 3m/s2 and the balance reads 50N, what is the true weight of the body?

    asked by lawrence on October 7, 2011