1. math

    A and B farm A produces milk with 3 ½ percent fat and farm B produces milk with 4 ¾ percent fat. (a) Determine (i) The total mass fat in 50 kg milk from farm A and 30 kg of milk from farm B (ii) The percentage of fat in a mixture of 50 kg of milk from A
  2. waist water treatment

    1/Why do the following components need to be removed from sewage under current law before it can be discharged on the surface water? Nitrogen Algea growth in receiving water Growth of waterborne diseases Turbidity increase of receiving water Oxygen
  3. statistics

    2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value
  4. Chemistry

    1.Chlorine gas can be produced commercially by passing an electric current through a concentrated solution of sodium chloride (brine). The unbalanced equation is NaCl(aq) + H2O(ℓ) → NaOH(aq) + Cl2(g) + H2(g). If the brine contains 163 g of
  5. Maths

    There were 40 members in a hockey club. 3/8 of them were girls. When more girls joined the club, the percentage of the number of girls increased to 75%. How many more girls had joined the club? Some teachers attended a workshop. They were divided into
  6. Math

    1. The manager of a bottle shop makes 25% profit on the cost price of all bottles of wine sold in the shop. She charges $12 for a bottle of Open View reisling. A hotel room service charged $30 for a similar bottle of Open View reisling. a) How much profit
  7. Statistics

    Direct mail advertisers send solicitations (a.k.a. "junk mail") to thousands of potential customers in the hope that some will buy the company's product. The response rate is usually quite low. Suppose a company wants to test the response to a new flyer,
  8. Stats Anyone?

    The first-year retention rate is the percentage of entering freshman at a given college who return to that same college for their sophomore year. Many colleges use the first-year retention rate as one measure of their quality. Suppose that the first-year
  9. math

    Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a)Calculate how long it will take to
  10. retail pharmacy assistant

    being a member of the health team allows the pharmacy assistanr to? (a)be a link between the doctor,the customer and the pharmacist (b)recommend and dispense prescription drugs (c)refer customers to a physician (d)work without the supervision of a
  11. statistics

    A pop-music record firm wants the distribution of lengths of cuts on its record to have an average of 129 seconds and a standard deviation of 10 seconds so that disc jockeys will have plenty of time for commercials within each 5-minute period. The
  12. Biology

    Tay-Sachs disease is a hereditary disease that kills 1 in 360,000 individuals in the general population. Individuals homozygous for the defective allele have Tay-Sachs disease and die at an early age.Studies show that heterozygous individuals have a higher
  13. Programming Fundaments 1201

    4.Write a program that will predict the size of a population of organisms. The program should ask for the starting number of organisms, their average daily population increase ( as a percentage), and the number of days they will multiply. For example, the
  14. Engineering

    Can someone please help me with this problem? In order to reduce the material cost, an engineer decides to use a hybrid beam instead of an all-carbon fiber beam. Both beams have the same overall dimensions with rectangular cross-sections. The hybrid beam
  15. geography

    Taken as a whole, what would you say is the single most pressing problem found in Latin America or South America? What possible solutions can you develop? My Answer: In my opinion, the most pressing problem would have to be the management of poverty. South
  16. Investments Analysis

    Can anyone help with ANY of these? Any good starting points would be great! Alpha (STI) 0.90 2008 Return(STI) 15% Beta(STI) 1.20 2008 Return(INX) 10% R_squared 36% Risk Free Rate 4% Variance(STI) .1296 b. What is the relative volatility (variability) of
  17. physics for Science

    2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most
  18. programming

    write a program to calculate the amount of a server's tip given the amount of the bill and the percentage tip ovtained via input dialog boxes. The output should be a complete sentence that reiterates the inputs and gives the resulting tip. here is my
  19. Chemistry

    1. Which of the following is one way to prevent the corrosion of iron? A. Paint exposed iron parts with protective paint. B. Protect the iron from polluted air. C. Add carbon to the iron. D. Let the iron develop a natural coat of carbonate. 2. The source
  20. Logic Research

    Mrs. Orlof teaches two history classes, one in th morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed the
  21. probability

    2.The daily production from a car factory=3 different models-A,B,C which are in two different colours-R and S. Daily the factory produces 1600 model A cars,800 of model B and 600 of model C. Overall,40% of the cars are of colour R,60% of colour S.60% of of
  22. Geography

    Taken as a whole, what would you say is the single most pressing problem found in Latin America or South America? What possible solutions can you develop? My Answer: In my opinion, the most pressing problem would have to be the management of poverty. South
  23. Chem 1

    Given the bond energy data below, which is the best prediction for the bond energy of the bond between the nitrogen and the oxygen atom in N2O? bond energy (kJ/mol) N-O single bond 201 N-O double bond 607 Indicate if it will be the single bond, double bond
  24. chemistry

    1-Dinitrogen tetroxide (N2O4) dissociates according to the equation: N2O4 ⇌ 2NO2 An equilibrium reaction mixture at 25 ºC was found to have the partial pressure of N2O4 as 72 kPa whilst the partial pressure of nitrogen dioxide (NO2) was 29 kPa.
  25. math

    Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a)Calculate how long it will take to
  26. 6th grade geo

    in which area would you find coal veins? in contrast to the southern uplands and the highlands, the central lowlands of Scotland which of the following is an accurate statement about the way that the welsh economy has changed in the late twentieth century
  27. MATH

    Axia College Material Appendix C Starting a Business Starting your own business can be exciting and daunting at the same time. Businesses use math when managing finances, determining production levels, designing products and packaging, and monitoring
  28. NEED HELP drawing a visual for this question

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to
  29. chemistry

    Hi, I was hoping someone could double check a chemistry answer for me. I am trying to calculate the Ksp of Ag2CrO4. This question is based on a experiment to determine ksp experimentally. In the experiment the Ksp of silver chromate was calculated using a
  30. Calculus Help Please!!! URGENT!!!!

    Carbon-14 has a half-life of 5700 years. In a living organism, the ratio of radioactive carbon-14 to ordinary carbon remains fairly constant during the lifetime of the organism. After the organism’s death no new carbon is integrated into the organism’s
  31. Math

    1. What is the sale price of a music CD that is sold in a retail store for 25% off of the original price of $16? A. $4 B. $12 C. $16 D. $13 My answer is A. 2. What is the percentage markup on the cost of a drill bit set if the cost is $75 and the set is
  32. Mathematics

    Mr.Allen has a wife and 3 kids.His monthly salary during the year 2007 was $7500. a)Calculate his annual salary $90,000 is this right? Information on calculating income tax for 2007 is shown in the table shown Allowances:Husband-$10,000,Wife-$5000, Each
  33. lasec

    Question 1 (1.00 points) Cost-push inflation: a. is caused by excessive total spending. b. shifts the nation's production possibilities curve leftward. c. moves the economy inward from its production possibilities curve. d. is a mixed blessing because it
  34. statistics

    When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,
  35. I.ter.ational bussiness

    according to cnn (2016/06/24), the British pound (GBP) crashed to its lowest level as low as$1.32/GBP. The exchange rate on June 23rd 2016 was $1.4883/GBP a)by what % has the Gbp appreciated or depreciated against the dollar during this period? b)bu what %
  36. Physics

    Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface. To do this, compare the gravitational force on an orbiting astronaut to the force on the astronaut here at
  37. Physics

    Biomedical measurements show that the arms and hands together typically make up 13.0% of a person's mass, while the legs and feet together account for 37.0% . For a rough (but reasonable) calculation, we can model the arms and legs as thin uniform bars
  38. Physics help please!!!

    Biomedical measurements show that the arms and hands together typically make up 13.0% of a person's mass, while the legs and feet together account for 37.0% . For a rough (but reasonable) calculation, we can model the arms and legs as thin uniform bars
  39. Chemistry

    So, they give me a word equation, where I am suppose to try and create a balanced equation for it. Ammonium phosphate and barium hydroxide react to form ammonium hydroxide and barium phosphate. 2(NH4)3PO4 + 3BaOH2 → 6NH4OH + Ba3(PO4)2 [I was thinking
  40. Managerial Economics

    I am completely lost in working this problem. 1. The total operating avenues of a public transportation authority are$100 million while its operating costs are $120 million. The price of a ride is $1, and the price of elasticity of demand has been
  41. American Government

    1) Which of the following would be most likely to occur if there were no nominating step in American electoral politics? A) Many people would run and the best, most qualified candidate would win. B) Many people would run and the winner would be elected
  42. Math/Physics

    Please check my work below and comment. A tank initially contains 80 gallons of fresh water. A 10% acid solution flows into the tank at the rate of 3 gallons per minute. The well-stirred mixture flows out of the tank at the rate of 3 gallons per minute.
  43. Psychology

    How does lying about financial statistics relate to psychology? I have this so far: People feel the need to tell the truth, not just because it’s the right thing to do, but also for more realistic reasons, such as the consequences for their actions.
  44. English (Essay)

    I'm writing about the treatment of Taliban women in Afghanistan and so far I've accomplished 2 paragraphs. Could you proof read it and give me some pointers? Thanks so much! There is no stopping the madness that is charging through the blood-stained
  45. math

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to
  46. Math (Statistics)

    The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, December 14, 2014). Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the
  47. Statistics

    A recent survey of students on the question “Do you think the United States should retain or abolish the use of the penny as a coin of currency?” showed that 20 of the 28 students thought that the United States should retain the penny. Consider this
  48. Statistics:Correlation and Least Square Regression

    Correlation and Least Square Regression A long term study of changing environmental conditions in Chesapeake Bay found the following annual average salinity readings in one location in the bay: Year Salinity (%) 1971 13.4 1972 9.8 1973 15.1 1974 14.7 1975
  49. Engineering Linear Equation

    At your initial meeting with your business partners for CellGenTech, you propose that the rate of change in the number of newly introduced cell lines that the company scientists should be able to produce should be proportional to the number of cell lines.
  50. Information Technology

    I am pressed for time and need this assignment done by Sunday please. The language used is Java. I have attatched both worksheets to be used in this assignment. Thank you so much. Please reread the description of the Metric Conversion program in Worksheet
  51. Chemistry

    Consider the isomerization equlibria of an alkene (C4H8) that co-exists as three isomers. (These 3 are in an equlibrium triangle) Reaction 1: cis-2-butene ⇔ trans-2-butene Reaction 2: cis-2-butene ⇔ 2-methylpropene Reaction 3: trans-2-butene
  52. Chemistry

    I posted this question a bit ago and received some help..but need more.. thanks Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452
  53. Chemistry

    a) Photosynthesis is estimated to produce 360.0 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters.
 b) The photosynthetic reaction can be
  54. Algebra

    Martin is making a candy that contains 90% milk chocolate and the rest caramels. The candy has 3 pounds of caramels. Part A: Write an equation using one variable that can be used to find the total number of pounds of milk chocolate and caramels in the
  55. regression

    You have heard about but never took seriously the Old Farmer’s Almanac claim that you can tell the temperature of the air by counting the number of cricket chirps in 1 minute. You decide to test the claim so one night when the temperature was 76 degrees
  56. Stat

    Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard deviation of 20. a.
  57. Statistical work

    Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard deviation of 20. a.
  58. Analytical chemistry

    A Kjeldahl analysis was preformed upon a 0.055 g sample of impure biguanide (C2H7N5, fw=101.1). The liberated ammonia, collected in 40 mL of 4% boric acid was titrated with 19.51 mL of 0.1060 M HCl. Calculate the percentage of biguanide in the sample.
  59. physics

    A pitcher throws a baseball to a batter at 95 mph from a distance, d, away. The batter swings and hits the ball. (5280 ft = 1 mi, g = 32.174 ft/s/s). a) Assuming the pitch travels the full distance, d, how much reaction time does the batter have to hit the
  60. chem lab question

    1. This experiment separates meat into an acetone-soluble part and an acetone-insoluble part. The calculations are based on the principal components of meat being fat (acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet). More
  61. chemistry question on fats

    . This experiment separates meat into an acetone-soluble part and an acetone-insoluble part. The calculations are based on the principal components of meat being fat (acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet). More
  62. statistics

    You want to set up a games stall at the Winter Wonderland. You have a single pack of 52 cards and decide to play card games with your customers. The game is designed as follows. A customer draws 4 cards at random. For every “Ace” that the customer
  63. statistics

    You want to set up a games stall at the Winter Wonderland. You have a single pack of 52 cards and decide to play card games with your customers. The game is designed as follows. A customer draws 4 cards at random. For every “Ace” that the customer
  64. chin

    You want to set up a games stall at the Winter Wonderland. You have a single pack of 52 cards and decide to play card games with your customers. The game is designed as follows. A customer draws 4 cards at random. For every “Ace” that the customer
  65. are these correct

    b. Calculate the profit or loss on 12,000 bags and on 25,000 bags. 12,000 x $10 = 120,000 80,000 + .10 x 50lbs x 12,000 = 80,000 + 60,000 = 140,000 120,000 – 140,000 = -20,000 loss 25,000 x $10 = 250,000 80,000 + .10 x 50lb x 25000 = 80,000 + 125000 =
  66. Chemistry URGENT

    I need help to evaluate if I completed my experiment calculation. determination of water in a hydrate. 1. Mass of crucible, and cover = 18451.3 2. Mass of crucible, cover and sample = 23410.2 3. Mass of crucible, cover and sample after 1st heating =
  67. Physics

    I posted this question before and i really need help on it... A pitcher throws a baseball to a batter at 95 mph from a distance, d, away. The batter swings and hits the ball. (5280 ft = 1 mi, g = 32.174 ft/s/s). a) Assuming the pitch travels the full
  68. new mexico histoy

    1. Why does New Mexico have a varied climate? (1 point) It stretches along a long coastline. Part of its border lies along Mexico. Its physicalfeatures divide the land into different regions. Its land is mostly flat so weather moves quickly. 2. Which New
  69. English

    I left out a brief description of the two partners. Feel free to make the appropriate changed. We need the project to be approved! 1) Lycée ... is a general sencondary high school with 920 pupils, which is situated in south Vendée, the least economically
  70. statistics

    Urgen!! Statistics homework help? Your company is producing special battery packs for the most popular toy during the holiday season. The life span of the battery pack is known to be Normally distributed with a mean of 250 hours and a standard deviation of
  71. stat

    ** I already finish these questions Can you answer so I can compare my final answers w/ yours.** Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution
  72. Ecoomics

    commodity Price Elasticity of demand ---------- Potatoes 0.3 If I know there is a fall in the price of potatoes how do i predict the corresponding direction of change in total spending? Total spending on potatoes is P*Q. Elasticity is (%change in
  73. accounting

    Frieden Company's contribution format income statement for the most recent month is given below: Sales (46,000 units) $ 966,000 Variable expenses 676,200 Contribution margin 289,800 Fixed expenses 231,840 Net operating income $ 57,960 The industry in which
  74. Maths - Statistics

    A large school in the UK offers its pupils the opportunity to learn several non-English languages. It turns out that: • 55% of pupils in this school choose to learn French; • of the pupils who learn French, 40% also learn German. (a) For pupils in this
  75. Chem

    Draw a Structural Formulae for Hydrogen Cyanide (HCN) and Cyanogen (C2N2 or CN2) Hydrogen = 1 Valency Nitrogen = 3 Valencies Carbon = 4 Valencies H-C(triple bond)N N(triple bond)C-C(triple bond)N Thank you And for a Lewis Structure they would be H:C:::N:
  76. Statistics

    Hi! I've been stuck on this question for a while. I know that I have to do some sort of 1-1/k^2 for empirical rule, correct? I can't figure out how to calculate any of this and what it means of within the standard deviation. I would greatly appreciate any
  77. statistics

    According to a survey, only 15% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected. a) What proportion of the samples will have less than 15% of customers who will make a purchase after
  78. compensation and benefit

    Discuss the possible impact of StopNShopToday, Inc. stores being located solely in one of the following three locations with the indicated employee demographics: Location: •New York City, NY ◦average employee age: 30 years old ◦male/female
  79. World history answer CHECK

    stars*** by my answer 1. President Ronald Reagan's economic theory which assumed if taxes were reduced, people will work more having more spending money, and the economy would grow was called "Reaganomics." Identify the economic theory which Reaganomics is
  80. Visual Basics 2008

    This is a from chapter 3 #82. the problem is: Write a program to calculate the amount of a server's tip given the amount of the bill and the percentage tip obtained via imput dialog boxes. The output should be a complete sentence that reiterates the inputs
  81. ??/

    1. Oxygen moves easily out of blood capillaries into cells because ___________. (1 point) the walls are very thin because it is very small because other gases push it out cells need the oxygen 2. Which of the following statements is false? (1 point)
  82. science

    1. Oxygen moves easily out of blood capillaries into cells because ___________. (1 point) the walls are very thin because it is very small because other gases push it out cells need the oxygen 2. Which of the following statements is false? (1 point)
  83. Statistics

    Several states, including California, have passed legislation requiring automakers to sell a certain percentage of zero-emissions cars within their borders. One current alternative is battery-powered cars. The major problem with battery-operated cars is
  84. Statistics

    When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,
  85. organic chemistry

    in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? dehydration of a secondary alcohol proceeds readily with the presence of strong acid and proceeds with E1 mechanisms. Removing product from chemical system
  86. Finance

    Anderson International Limited is evaluating a project in Erewhon. The project will create the following cash flows: Year Cash Flow 0 –$690,000 1 243,000 2 175,000 3 256,000 4 231,000 All cash flows will occur in Erewhon and are expressed in dollars. In
  87. math

    The chart below shows the average number of movies seen per person in selected countries. Country Average number of movies a person sees per year Turkey. 0.5 Japan. 1.2 United kingdom. 1.3 Finland. 1.3 Austria. 1.5 Germany. 1.8 Spain. 2.2 Sweden. 2.2
  88. statistics

    In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try, Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of and individual's passing on his or
  89. Management (open to everyone)

    My ideas are after the question. Please add to them or comment. Assume that you represent the top administrators of a large university with 15,000 students. Over the past three years there have been an increasing number of applicants to the school.
  90. Assembly language

    For this project, you will write a MIPS assembly language program to calculate periodically compounding interest. Your program should prompt the user to enter the necessary parameters for the calculation and continue to loop until the user opts to quit.
  91. finance

    a financial mgr is considering operating a lock box. she forecast that 400 payments a day will be made to the lockbox with the average payment being $2,000. the banks charge for operating the lockbox is .40 cents per check. the interest rate is .025 per
  92. accounting

    6. Acme Manufacturing Company estimates factory overhead as a percentage of machine hours. On 1.1.11, Acme estimates total factory overhead of $400,000 for the year, and estimates 20,000 machine hours will be required during the year. During the year,
  93. Science

    Humidity is the amount of water vapor in the air at a given time. At warm temperatures, air can hold more moisture than it can at cold temperatures. Relative humidity is the amount of vapor the air is holding expressed as a percentage of the amount the air
  94. STATISTIC

    A U.S. government report stated that, “With bank interest rates around 1.0%, 8% of wage earners believe it worthwhile to keep money in a savings account. However, at 3.0% interest, 36% of wage earners believe it worthwhile to keep money in a savings
  95. Physics

    A hanging spring stretches by 30.0 cm when an object of mass 490 g is hung on it at rest. We define its position as x = 0. The object is pulled down an additional 20.0 cm and released from rest to oscillate without friction. What is its position x at a
  96. Physics

    A hanging spring stretches by 30.0 cm when an object of mass 490 g is hung on it at rest. We define its position as x = 0. The object is pulled down an additional 20.0 cm and released from rest to oscillate without friction. What is its position x at a
  97. Math

    12. Your neighbor pays $40 to have her lawn mowed and always adds a 15% tip. You and your friend decide to mow the lawn together and split the earning evenly. How much will each of you make? 15*40=500 500+40=540 540/2=270 You and your friend will each make
  98. history

    what was the rapid development of the mass media durning the 1920s what is the total private school enrollment in minnesota? These are the most important events in the development of mass media during the 20's. 1920- rapid develpment of private radio
  99. biology

    1. What are the three parts that make up a nucleotide? 2. What is the sugar found in DNA? 3. What are the four different bases found in DNA nucleotides? 4. What two parts make up the sides of the DNA “ladder”? 5. What holds the sugars and the
  100. Finance

    A thirty-year Treasury bond has a 4.0 percent interest rate. In contrast, a ten-year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect