1. math

    Given the following information, determine the sample size needed if the standard time estimate is to be within 5 percent of the true mean 99 percent of the time. Work Element Standard Deviation (minutes) Mean Observed Time (minutes) 1 0.20 1.10 2 0.10
  2. History

    How Would One Discuss This Topic: Japan controlled neighbors because it could. Japan also took over Korea and China because it needed land and resources. Japan is an island country, therefore, it needed a dependable source of raw materials. This is usually
  3. Chemistry

    Which of the following is NOT true? (A) CH2O Has a relatively high boiling point due to hydrogen bonding. (b) BaCl2 is an example of an ionic sold. (c) Ionic solids are poor conductors of heat and electicity. (d) The melting point of Fe is higher than
  4. mpc

    A reasearcher wishes to be 95% confident that her estimate of the proportion of two individuals who travel over sea is within 4% of the true proportion. Find the sample necessary if in a prior study a sample of 200 people showed that 40 traveled overseas
  5. English-Pride and prejudice

    How does Elizabeth’s understanding of her father’s true nature change and deepen in the course of the novel? Why is this a necessary part of her growth? Thank you for using the Jiskha Homework Help Forum. Here are some links to visit: 1.
  6. Math

    The school band is compromised of middle school students and high school students, but it always has the same maximum capacity. Last year the ratio of the number of middle school students to the number of high school students was 1;8. However, this year
  7. Math

    The school band is comprised of middle school students and high school students, but it always has the same maximum capacity. Last year the ratio of the number of middle school students to the number of high school students was 1:8. However, this year the
  8. History: Check My Answers PLEASE

    Which are accurate descriptions of how the Christian church influenced daily life in the Middle Ages? Choose all answers that are correct. A.encouraged people to rebel against unjust feudal lords B. oversaw the writing of wills and contracts C. made and
  9. chemistry

    why is HS- a stronger BL base compared to HSO4 In a series of oxybases with the same central atom, the base with more O atoms is stronger. In a series of oxybases with the same central atom, the base with less O atoms is stronger. Since H2SO4 is one of the
  10. History

    2) which statement best describes a social contract A.an implied agreement between citizens and government in which citizens release some liberty to government for the good of society B.a contract between local residents and providers of basic services
  11. Ms. Sue

    Say you make the following assumptions: 1. Afarmer lives on 1 hen per day for a year. (2.)1 hen eats 25 grasshoppers per day (3.)1,000 grasshoppers have a mass of 1 kg (4.) 1 grasshopper requires about 30g of soy beans per year (5.) 1 human requires about
  12. Algebra 1 Polynomials

    Suppose n is an integer. Select all statements below that are true: (choose 3) A) n^2 + n is always an even integer*** B) n^2 + n is always an even integer when n is even*** C) n^2 + n is always an even integer when n is odd*** D) n^2 + n is never an even
  13. Middle school digital art and design question

    Hi! So, I need to check just a few MS digital art and design questions (If thats Ok) 1) Which of the following is true of Vincent van gogh A) He was a wealthy artist*** B) Very few people study his work today C) He choose very traditional methods of
  14. Science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to
  15. science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to
  16. geololgy

    Earth and Venus are so similar in size and overall composition that they are almost “twins.” Why did these two planets evolve so differently? Why is Earth's atmosphere rich in oxygen and poor in carbon dioxide, whereas the reverse is true on Venus?
  17. Statistics

    This problem does not make any sense to me!!! I would greatly appreciate your assistance, thanks. A recent survey showed 4.6 percent of the sample of 250 had suffered some kind of identity theft in the past 12 months. a. Construct a 90 percent confidence
  18. Biology

    Write true or false: 1. A root hair is a small extension of an epidermal or outermost cell layer of a dicot root 2. Layers of parenchyma cells make up the cortex of a dicot root and the central pith of a monocot root. 3. Outside the endodermis is a tissue
  19. penn foster

    A cause-and-effect relationship must be stated or evident in order to code which of the following? A. Sequence B. Hypertensive condition C. Atherosclerosis D. Manifestation unsure of answer? 16. Which of the following is true about the ICD-10-CM? A. An
  20. Medical coding

    Which of the following is true about the ICD-10-CM? A. An eighth character was added. B. There are combination diagnosis/symptom codes. C. There are limited injury codes. D. There's additional information relevant to inpatient encounters. unsure of answer?
  21. English 1

    Why do some readers choose to join reader groups? A. Groups offer opportunities to discuss interesting topics in literature.*** B. Groups allow readers to find out the ends of stories without reading. C. Groups usually give away free books to their regular
  22. economics

    Please sort the following statements about property rights as either true or false. property rights include the right to buy or sell one's resources and goods All countries are equally effective at enforcing property rights Property can be tangible or
  23. math

    I was asked to deduce the values of a,b, and c for the parabola y= ax^2 + bx +c. There are 4 clues given: 1. the y-intercept is (0,6) 2. The curve goes through (4,5) 3. The curvev has a turning point at (2,3) 4. the line of symmetry is x=1 Questions: It is
  24. ashford

    All of the following are true of what typically occurs when first meeting someone EXCEPT: (Points : 1) First impressions are based mostly on facial appearance. We form our impressions of others within less than a second of meeting them. We form conclusions
  25. English

    I am need help with these questions I keep getting the answer wrong can you help me by explaining why The way Cowley uses the phrase "my own country" is an example of A. simile. B. consonance. C. repetition. D. personification. my answer is c The phrase
  26. math

    the probability of a computer memory chip being defective is 0.02. which of ghe following statements is true? a) in a shipment of 1000 chips, it is certain that at least one will be defective. b) in a shipment of 100 chips, two will be defective c)the
  27. science

    what are the impacts on fishing and hunting in antarctica i need answers fast thanx We will be happy to critique your thinking. Antarctica is a very delicate ecosystem: the removal of one item affects many, and you could cite examples of this. Why do you
  28. English

    10.VerA(16-19) Identify the underlined word or phrase that should be corrected. 1.The cheerful(A),lively sound of(B) dance music expired(C) almost everyone(D).No error.(E) 2.After such(A)a magnificent(B) meal,we were(C) all quick to(D) applaud Mary for her
  29. Language Arts

    which of the following are you most likely to find in a science fiction novel such as The Giver? A. People living in a futuristic environment where rules lead them to act differently than is commonly accepted now. B. Characters from the distant past
  30. social studies

    how do we really know if the stuff in the S.S book is really real.we don't know because we wasn't there Most of it is true. Resercher and other have worked many years and by using technonly and other eveidence have figured out how people lived and ect. So
  31. graphing

    Can someone show me how to solve these inequalties for me? I cannot figure any of them out -6 < x and 3 < 6 (Remember this is an "and" statement) -3x < -6 or x + 5 < -2 x - 2 > 2x + 1 or -10 > -2x - 2 First of all, the first problem makes nonsense. The
  32. Phyiscs

    True or false: When a system consists of several objects, each with their own mass and velocity, the linear momentum of the system as a whole is simply the product of the system's total mass and the velocity of the system's center of mass.
  33. math

    Find digits A and B in the number below so the folling condition are true. The 5-digit number must be divisible by 4. The 5-digit number must be divisible by 9. Digit A cannot be the same as Digit B. 12A3B Explain the steps you followed to solve the
  34. Statistics

    Which of the following statements about the correlation coefficient r are true? I. It is not affected by changes in the measurement units of the variables. II. It is not affected by which variable is called x and which is called y. III. It is not affected
  35. physics

    A satellite has a mass of 5950 kg and is in a circular orbit 3.80 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 10^6 m. What is the true weight of the satellite when it is at rest on the
  36. Posting

    I keep trying to post a question about chemistry and the site keeps telling me that there is an error because I am trying to put in a link to a website. This is not true! I tried to contact the website, and put in my question there. Can someone from this
  37. Algebra

    Which of the following statements is NOT true regarding an expression written in scientific notation in form of a x 10^n ? a. The value of a must be greater than or equal to 1 and smaller than 10. b. The value of n must be an integer. c. Doubling n results
  38. Physics

    A satellite has a mass of 5600 kg and is in a circular orbit 3.70*10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20*10^6 m. What is the true weight of the satellite when it is at rest on the
  39. Statistics

    I think the answer to this question is False but I would like to confirm. Thank you for your help. True or False: Suppose the population mean is 50 and the population variance is 100 for a population. In a sample where n = 100 is randomly taken, 90% of all
  40. PHYSICS PLEASE HELP

    A satellite has a mass of 5850 kg and is in a circular orbit 4.50 x 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 x 10^6 m. What is the true weight of the satellite when it is at rest on the
  41. calculus ..&gt;steve

    Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x). i have already try it..but i don't understand.. which graph that is true.. the first or second ? and how to calculate
  42. Math, Algebra

    Can you please help me! I solved it, but I'm not sure if I'm right. ------------------------------ Paulo pays $45.99 per month for unlimited calls, with additional charges for text messages. His bill for 4 months is $207.96. If he sends 100 texts each
  43. Geography

    Which phrase is an example of a biome? Suburban neighborhood Mediterranean climate Mississippi river Coniferous forest Which statement about wind is not true ? Wind direction is affected by the earths rotation Winds at about 30° north and south latitudes
  44. Calculus

    A differentiable function called f(x) achieves its maximum when x=0. Which of the following must then be true? 1. The function p(x) = xf(x) has a critical point when x = 0. 2. The function m(x) = (f(x))^2 has its maximum at x = 0. 3. The function j(x) =
  45. Math(1 question plz help thanks!=D

    if two integers have the same absolute value which of the following is true about the integers? A. they must be the same integer B. they must be the opposite integer*** C. they could be the same or opposite integer (plz help my answer is with the***sign
  46. Science

    Which of these is true about water vapor? A. It is water in a gas state. B. It is water in a solid state. C. It is water in a liquid state. D. It is not measurable.
  47. algebra II

    need set notation for two step inequalities. problem is -4-5v5. if that's true, then how do u do set notation for answer? have 80 set notations to do and need to know how to do this by example
  48. billing/coding

    which of the following statements about risk management is true? a)risk management is concerned with reducing exposure to legal liability b) risk management is a spontaneous response to an unexpected incident C) risk management is unique to the heatlh care
  49. Chemistry

    A base has a Kb of 2.5 x 10–11. Which of the following statements is true? A.This is a concentrated base. B.This base ionizes slightly in aqueous solution. C.This is a strong base. D.An aqueous solution of this base would be acidic. My answer is D...?
  50. Language Arts

    Which Statement about adverbs is true? A. Adverbs modify nouns and verbs B. Adverbs modify adjectives and verbs C. Adverbs always answer the question why D. Adverbs always end in -ly Please help ASAP! Its either between A and B.
  51. Physics -- check answers

    1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational
  52. Physics -- check answers please

    1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational
  53. Physics

    One end of a rubber band with a length L is attached to a wall. The rubber band is held horizontally and the loose end is pulled away from the wall at a speed v, stretching the band. Simultaneously, an ant begins to crawl away from the wall along the
  54. home inspection

    which of the following statements is true? A.most home inspection requests come from real estate professionals B.more home inspections are performed for relocation companies than for any other type of client C.the law requires a home inspection prior to
  55. microeconomics

    If the price of oil falls below $50 per barrel, then the supply of the goods and services whose poduction involves a lot of oil will increase. The incresase in supply will cause the prices for these goods and services to fall. True, False or Uncertain.
  56. Buying A Car

    Which one of these statements is true about a "bumper-to-bumper" warranty. A. Normal wear and tear is NOT covered by the warranty. B. All expenses except gasoline and routine oil changes are covered by the warranty. C. Every part and system is covered
  57. Social Studies

    Each of the following is a principle of the samurai honor code, bushido, EXCEPT A.) honor means more than life or wealth itself. B.) a samurai must never show weakness or surrender to an enemy C.) one can only betray the code of bushido to save a family
  58. Science

    True / False: If a 40 kg person is accelerating at 10 m/s^2,then the magnitude of the force acting on him or her is 400 N. 1.How much force is needed to make a 60 kg object accelerate at a rate or 2.0 m/s ^2? 2.What is the acceleration of a 30 kg objedct
  59. 7 th grade math

    You check 20 batteries.Fourteen do not have a charge. Part a. What is the experimental probability that the next battery you check does not have a charge? Part B. Select an answer from each box to make the statement true If 300,100,240 batteries are tested
  60. Biology

    Which of the following statements regarding DNA and RNA is true? DNA can melt while RNA cannot. DNA is resistant to alkaline hydrolysis while RNA is not. DNA contains phosphodiester bonds while RNA does not. DNA can form double helices while RNA cannot.
  61. Math/statistics

    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 found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and
  62. Math

    Round the larger factor to the graetest place. 55*4 round 50 *4 993*6 rounds to 1,000*6 735*3 rounds to 700*3 1,914*3 rounds to 2,000*3 4,722*6 rounds to 5,000 495*3 rounds to 500*3 Please ,, My answers : true or false
  63. probability!

    so i am asked to find the prob of a male professor - given that he is promoted. and the stats are female promoted = 3% female not promoted - 12% male promoted 17% male not promoted - 68% and i just wrote down that it is 17% is this true? ALso, i looked up
  64. Introduction to Business Environment

    1. An entrepreneur is an individual who has worked for a nonprofit organization for his entire career. (Points : 1) True False 2. In analyzing factors of production that make a country "rich," it has been observed that some relatively poor countries often
  65. Math

    Are all statements that are true. (a) log(A)/log(B)=In(A)/In(B) (b) In log[b](N), the exponent is N. (c)If 2log[3](81)=8, then log[3](6.561)=8 (d)log[b](N) negative when N is negative. (e)In(x/2)=In(x)/2
  66. Math

    Are all statements that are true. (a) log(A)/log(B)=In(A)/In(B) (b) In log[b](N), the exponent is N. (c)If 2log[3](81)=8, then log[3](6.561)=8 (d)log[b](N) negative when N is negative. (e)In(x/2)=In(x)/2
  67. Physical science CHECK my answers

    1. Which of the following correctly lists friction types (excluding fluid friction) from strongest to weakest? (2 points) * a. static, sliding, rolling b. sliding, static, magnetic c. weak, strong, nuclear d. rolling, sliding, static*** 2. Two or more
  68. home, school, and community

    which one of the following statements is NOT true when a partnership is created between a parent and a teacher a. parents are cpable of making major contributions to rheir childs education b.teachers share responsibility and pwer c. teachers inform
  69. math

    Which of the following is a true statement? A. All squares are rectangles. B. All rectangles are squares. C. All rhombuses are squares
  70. maths

    The values A,B,C, and [(A/B)+C], are all integers which are divisible by 3. Then, which of the following statements must be true: A is divisible by 9 B is divisible by 9 C is divisible by 9 A and B are both divisible by 9 A,B,and C are all divisible by 9
  71. Math concepts and applications

    which number sentence is true ? A.0.027 < 0.0027 B.0.0027 < 0.027 C.0.27 < 0.027 D.2.7
  72. Algebra

    Let f(x) = 1 – 3x^2. Which of the following is true? Please give us a brief explanation. A. f is an odd function. B. f is an even function. C. f is neither odd nor even. D. f is both odd and even.
  73. Algebra

    Let f(x) = 1 – 3x^2. Which of the following is true? Give a brief explanation. A. f is an odd function B. f is an even function c. f is neither odd nor even Cf is both odd and even
  74. number theory

    The values A,B,C, and [(A/B)+C], are all integers which are divisible by 3. Then, which of the following statements must be true: A is divisible by 9 B is divisible by 9 C is divisible by 9 A and B are both divisible by 9 A,B,and C are all divisible by 9
  75. geometry

    he coordinates of point A are (3, 4). The coordinates of point B are (4, 1). If point M is the midpoint of segment AB, what is true about AM and MB?
  76. math

    If a and b are both positive numbers,and a>b,which of the following could be true? I. ab is greater than either a or b. II. ab is greater than b but less than a. III. ab is less than either a or b. (A) I only (B) II only (C) III only (D) I and II only (E)
  77. college

    The average and SD of a set of 50 scores are 30 and 7, respectively. If each of these scores is increased by 10, then which of the following is true for the new set of scores?
  78. geography

    which of the following statements is true of Singapore a. Singapore's government condemned u.s. military actions in Afghanistan. b. Singapore finally became self governing in 1965 c. Singapore is member of the federation of Malaysia d. Singapore is a major
  79. Geography

    10. All of the following statements about the Great Lakes and Mississippi River system are true except a. they aided the growth of industry in the Midwest b. they are still important trade routes today c. cities connected by this transportation network are
  80. conjectures

    Evaluate the following sums: 1 1+8 1+8+27 1+8+27+64 Add two more line to the list, and make a conjecture about the sums you obtained. this is a pattern. if you look closely than you'll see each number is a product of another number cubed.
  81. Multiple Choice HELP!

    What is a counterexample for the conjecture? Conjecture: The product of two positive numbers is greater than the sum of the two numbers. A. 3 and 5 B. 2 and 2 C. A counterexample exists, but it is not shown above. D. There is no counterexample. The
  82. Math PLEASE HELP

    1.Which pair of ratios can form a true proportion? A 7/4, 21/12 (I picked this) B 6/3, 5/6 C 7/10, 6/7 D 3/5 7/12 2. Solve the proportion g/56=2/8 A g=14 B g=16 (I picked this) C g=13 D g=50 Solve the following Proportion 2/9=y/27 A y=6 (I picked this) B
  83. differentiability

    If g is a differentiable function such that g(x) is less than 0 for all real numbers x and if f prime of x equals (x2-4)*g(x), which of the following is true? A. f has a relative maximum at x=-2 and a relative minimum at x=2, B. f has a relative minimum at
  84. mathematics -logs

    which three statements are true? a) if x= -10^4 then log 10 = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 a/log 10 b f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2x^x at x= 2 is 2e^e
  85. English

    Can you check if my rephrasing is correct? Thank you very much. 1) The monster's skin is yellow and scarcely covers the pulsing work of its muscles and arteries. 2) The ship left the harbour, but a violent storm-blast compared to an enormous bird brought
  86. microeconomics

    If a university faces a downward sloping, linear demand curve for the undergraduate education that it provides and is able to engage in perfect, first degree price discrimination(through obtaining detailed financial information from each prospective
  87. history

    "Such is the Old Town of Manchester, and on re-reading my description, I am forced to admit that instead of being exaggerated, it is far from black enough to convey a true impression of the filth, ruin, and uninhabitableness, the defiance of all
  88. epidemiology

    A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is
  89. math

    what is 0.68 written as a simplified fraction? a 68/100 b 17/25 c 100/68 d 34/25 Man Johnsons class is having a pizza party. if there are 14 students and 7 pizzas cut into 8 slices, what answer choice represents the fraction of one pizza that each student
  90. epidemiology

    A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is
  91. social studies

    All of the following statements about Brazil's economy are true except: (A) Because of the development of gasohol, Brazil no longer has to import expensive foreign oil. (B) Industrial developments have destroyed the middle class. (C) Jobs in service
  92. English

    I need some ideas of novels,songs,comics etc.(preferebly a song) that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. - Individualism(the fact of
  93. Macroeconomic

    All of the following statements are true of the Federal Reserve EXCEPT: A. Acts as the central bank for all countries in the world. B. Along with the Board of Governors, the chairperson of the Federal Reserve determines monetary policies and strategies
  94. math

    Collaboration is very powerful! Suppose you have a group of F students, each of whom independently has 55% chance of correctly answering each true/false question on a test with 25 questions. Unfortunately, unlike the first puzzle, this time they don’t
  95. World 201

    8. Confucius taught that filial piety had to do with the care and provision parents religiously gave to their children? False 9. Daoism is the belief that all people should reject social harmony and work to maintain a good and strong government? False 10.
  96. language arts

    i need help depicting a poem using literary terms. The poem is Dear Sister and goes: Do not believe what all you read in the papers, Leona, about the strikers being reds. It is true, the Communist Party of New York sent down a truckload of potatoes. You
  97. Enviro Science

    20.People are exposed to pollutants on a daily basis in the a. food they eat b. air they breathe c. water they drink d. all of the above D 24. the 5 major pollutants to both the environment and human health are pesticides, lead, particulate matter, coal
  98. microeconomics

    a.in an auction, potential buyers compete for a good by submitting bids. adam compared ebay auctions in which the same good was sold. he founf that,on average, the larger the number of bidders, the higher the sales price. for example, in two auctions of
  99. microeconomics

    a.in an auction, potential buyers compete for a good by submitting bids. adam compared ebay auctions in which the same good was sold. he founf that,on average, the larger the number of bidders, the higher the sales price. for example, in two auctions of
  100. Organizational Behavior

    Questions 1. Research conducted by Luthans supports the belief that promotions are base on performance. True or false 2. Tenure is negatively related to turnover. True or False. 3. Age and avoidable absences are negatively related. True or False. 4. Which