1. 12

    a high speed office copier has an initial price of $1800. a service contract cost $270 for the first year and increases by $100 per year thereafter. it can be shown that over x years the total cost of thecopier is given by C(x)=1800+220x+50X^2 When is the
  2. accounts

    Mr. X purchased 2 machinery on a hire purchase system . he pays rs 125,000 down and 150,000 at the end of second yr, fourth year, sixth year. Interest is charged by vendor @ 10% p.a. with 2 yearly, rest on unpaid balance. Calculate the amount of interest
  3. English/Science

    urgently need to talk to one of your science teachers. In particular, I need help to define the objectives for our two-year Comenius project concerning biodiversity in water. This comparative study will be carried out in English. 1) As you know, it will
  4. English/Science

    I urgently need to talk to one of your science teachers. In particular, I need help to define the objectives for our two-year Comenius project concerning biodiversity in water. This comparative study will be carried out in English. 1) As you know, it will
  5. Math

    According to the Department of Health and Human Services, 30% of 18- to 25-year-olds have some form of mental illness. (a) What is the probability two randomly selected 18- to 25-year-olds have some form of mental illness? (b) What is the probability six
  6. algebra

    In a large survey, it was discovered that 1 out of every 5 adults visits Disney World every year. If 30 adults are randomly selected, what is the probability that exactly 7 of them will visit Disney World this year?
  7. Finance

    Ten years ago, Levin Inc. earned $0.50 per share. Its earnings this year were $2.20. What was the growth rate in Levin's earnings per share (EPS) over the 10-year period?
  8. chemistry

    There are exactly 60 seconds in a minute, there are exactly 60 minutes in an hour, there are exactly 24 hours in a mean solar day, and there are 365.24 solar days in a solar year. Find the number of seconds in a solar year.
  9. History

    Im in grd11 this year nd when i ws in grd10 i ws doing maths lit bt in grd11 they say that this year all grds frm 10 to 12 wl change maths lit to pere bcoz of CAPS.So iz that true?
  10. chemistry

    There are exactly 60 seconds in a minute, there are exactly 60 minutes in an hour, there are exactly 24 hours in a mean solar day, and there are 365.24 solar days in a solar year. Find the number of seconds in a solar year.
  11. contemporary mathematics

    in terms of paying less in interest, which is more economical for a $230,000 mortgage: a 30 year fixed-rate at 9% or a 20 year fixed-rate at 8.5%? How much is saved in interest?
  12. maths

    In Newtopia, inflation runs at 15%. A home entertainment unit currently sells for $2000. A)How much would you expect it to cost in a year`s time? B)How much would you expect it to cost in two year`s time?
  13. math

    A credit card had an APR of 23.51% all of last year and compounded interest daily. What was the credit card's effective interest rate(EIR) last year? Show your work.
  14. math

    in a large survey, it was discovered that 1 out of every 5 adults visits disney world every year. if 30 adults are randomly selected, what is the probability that exactly 7 of them will visit disney world this year.
  15. math

    Carlos joins a DVD club.The membership cost$49 per year. Each DVD cost$4. supose carlos buys 28DVDs this year . How much money will he make?
  16. Finance

    Fox Hollow Franks is looking at a new system with an installed cost of $540,000. This equipment is depreciated at a rate of 20 percent per year (Class 8) over the project’s five-year life, at the end of which the sausage system can be sold for $80,000.
  17. chem

    The following reaction is used in some self-contained breathing devices as a source of O2. 4KO2(s) + 2C02(g)---> 2K2CO3(s) + 3O2(g) Suppose that a sample of CO2(g) is added to an evacuated flask containing KO2(s) and equilibrium is established. The
  18. health

    Dr Bob's computerized records are damaged by a power surge,Which of the following is true? a) Dr Bob is not at fault b)Dr bob is at fault c)The records custodian, but not dr bob will be liable d)dr bob is at fault unless he had proper surge protection
  19. Probability and statistics

    The probability that the life time of randomly chosen device is below average, average,above average are respectively 0.2,0.5,0.3. The probability that of the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals
  20. physics

    hi can somebody help me with this?? a solenoid of length L and radius R carries a current I in its N turns. what is the total energy stored in the magnetic field within the solenoid? Compute the inductance L using the solenoid formula. You should be able
  21. corporate finance

    Archer Daniels Midland Company is considering buying a new farm that it plans to operate for 10 years. The farm will require an initial investment of $12.00 million. This investment will consist of $2.60 million for land and $9.40 million for trucks and
  22. Social Studies (Check, Please!)

    1. Why did Rosa Parks refuse to give up her seat to a white man? A: Rosa Parks refused to give up her seat to a white man because she was tired of giving in to the demands of white people. 2. According to Jo Ann Gibson Robinson, why did people in
  23. physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you
  24. Physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you
  25. physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you
  26. physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you
  27. physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you
  28. Math Word Problem

    During the summer throughout high school and for a year after, Lewis worked as a lifeguard at the beach. In that 5-year period, he saw a total of 461 dolphins swimming in the distance. About how many did Lewis spot per summer in the 5 summers he worked?
  29. college math

    A $8700 personal loan at 5.5% compounded monthly is to be repaid over a 4 year term by equal monthly payments. a) calculate the interest and principle component of the 18th payment b) how much interest will be paid in the third year of the loan?
  30. Math

    A machine cost $40,000,has a salvage value of $8,000,and is expected to have a useful life of 100,000 hours.if it is utilized for a total of 8,000 hours in year one,what is the depreciation expense based on the unit-of-production-method at the end of the
  31. computer code

    Design a pseudocode for a program that accepts an ice cream flavor the price per gallon and number of gallons sold a year, display a message this flavor is the best seller having more than 40000 gallons a year sold
  32. algebra with application

    Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 20% down. Assume that the monthly cost to finance $1,000 is $6.00. What is the total amount of interest paid on the 30 year loan?
  33. Economic

    1. Keogh and IRA plans allow people to do all of the following except A.save money each year for retirement. B.withdraw money from their accounts at the end of every year without penalty. C.establish their own pension plans. D.defer taxation of the
  34. calculus 2

    The birth rate of a population is b(t) = 2000e^0.022t people per year and the death rate is d(t)= 1460e^0.017t people per year, find the area between these curves for 0 ≤ t ≤ 10. (Round your answer to the nearest integer.)
  35. ALGEBRA

    Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 40% down. Assume that the monthly cost to finance $1,000 is $6.00. What is the total amount of interest paid on the 30 year loan? I need
  36. college math

    A $8700 personal loan at 5.5% compounded monthly is to be repaid over a 4 year term by equal monthly payments. a) calculate the interest and principle component of the 18th payment b) how much interest will be paid in the third year of the loan?
  37. HeLP MATH !!!!

    The annual sales S (in billion of dollars) of oracle corporation from 2004 through 2009 can approximated by linear equation S=2.903t-1.98, 4 < t < 9, where t represent the year,with t=4 corresponding to 2004.use the model estimate the year in which
  38. accounting

    cost of rental equipment is $486,902, accum. amortization is $418,713, net book value for 2006 is $68,169 and 2005 is $74,018. Amortization of rental equipment for the year amounted to $22,205 (2005 - $14,379). i need to calculate the cost for year 2007,
  39. Physics

    A) the earth year is 365.25 days long. How long would our year be if earth followed the same orbit, but was only the mass of Mars? Answer this in earth days. B) How long would our year be if earth were the same mass, but had the orbital distance of mercury
  40. English!!!!!!!!!!!!

    Which sentence sounds better? *A 13 year old girl needs at least 1 hr. or exercise each day. *A 13 year old female needs at least 1 hr. of exercise each day. *A 13 year old female girl needs at least 1 hr. of exercise each day. Please Help!! Thanks!!
  41. physics

    The hour hand and the minute hand for the famous Parliament clock tower Big Ben in London are 2.7m and 4.5m long and have masses of 60kg and 100kg, respectively. Calculate the total torque due to weight of these hands about axis of rotation when the time
  42. Astronomy

    Which of the following distance measuring techniques works to measure distances to other galaxies beyond the Milky Way? CHECK ALL THAT APPLY A) Hubble's Law B) main sequence stars C) Cepheid variable stars D) parallax E) radar ranging F) galaxy rotation G)
  43. Math

    Joe is the owner and CEO of Pinecrest Enterprises, a real estate development company in Boise, Idaho. The company has taken on a new development project outside of town, and Joe wants to drive out to survey the proposed development site. The site is 30
  44. Finance

    Can you show me how to solve these problems? PLEASE!!! I can't figure out how to solve these. :-( 1.Briarcrest Condiments is a spice-making firm. Recently, it developed a new process for producing spices. The process requires new machinery that would cost
  45. statistics

    A telephone company's goal is to have no more than four monthly line failures on any 50 miles of line. The company currently experiences an average of 4 monthly line failures per 25 miles of line. Let x denote the number of monthly line failures per 50
  46. Physics

    A 10kg block is attached to a massless cord that doesn't stretch or sag which is rapped around a disc like wheel, m=5Kg, I= (1/2)mR^2. If the block is allowed to drop straight down held back only by the rotation of the wheel: 1. What is the tension of the
  47. 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
  48. math

    When 6-year old Melanie arrived home from school, she was the first to eat cookies from a freshly baked batch. When 8-year old Felipe arrived home, he ate twice as many cookies as Melanie had eaten. When 9-year old Hillary arrived home, she ate 3 fewer
  49. accounting

    The directors of Health Food Alliance Ltd have recently reviewed their legal financial reporting obligations to shareholders and are completely satisfied that the company’s financial reports meet all the required accounting standards. However, they are
  50. accounting

    The directors of Health Food Alliance Ltd have recently reviewed their legal financial reporting obligations to shareholders and are completely satisfied that the company’s financial reports meet all the required accounting standards. However, they are
  51. HELP

    answers marked below 1. Which of Earth’s spheres contains most of its mass? (1 point) atmosphere hydrosphere geosphere biosphere 2. Erosion and weathering are examples of which types of forces? (1 point) constructive forces destructive forces
  52. Accounting

    As of January 1 of the current year, the Grackle Company had accounts receivables of $50,000. The sales for January, February, and March were as follows: $120,000, $140,000 and $150,000. 20% of each month’s sales are for cash. Of the remaining 80% (the
  53. finance

    Cascade Mining ($28Mil Assets) has an estimated beta of 1.6. The company is considering the acquisition of Hanson Welding ($42 Mil assets) that has a beta of 1.2. Cascade last paid a dividend of $1 per share 2010. In 2007, the Cascade paid a dividend of
  54. statistics

    the average is 550 and sd is about 100, what percentage of these scores range 400 to 700
  55. Chemistry

    Calculate the percentage of by mass of nitrogen in ammonium nitrate Nh4 No3
  56. Math

    y is directly proportional to the cube of x. If x is increased by 50% show that the percentage increase in y is 237.5%
  57. Chemistry

    Would gravimetric analysis or colorimetry be more accurate when calculating the percentage yield of a precipitate?
  58. social studies

    Approximately what percentage of Th Colonial population were patriots, neutral, loyalists?
  59. math

    selena calculated the percentage change in the price of a microwave as -87%please explain what it means
  60. chemistry

    given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
  61. chemistry

    25g of NaCl is deissolved in 100g of water. what is the concentration in percentage by mass?
  62. Intermediate algebra

    if a positive number is increased by 70% and then the result is decreased by 50% what is the overall percentage change
  63. physics

    What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway?
  64. Science

    What percentage of the total land area is available for mans use, living and agriculture/farming? A. 9.38% *B. 3.13% *C. 12.51% D. 75% I'm not sure if it is B or C. Thank You.
  65. chem

    Use this percentage to calculate the mass of fluorine in grams contained in 29.0 g of copper (II) fluoride
  66. Math

    The percentage method aids in calculating a)SUTA B)FICA C)FUTA D)FIT
  67. Statistics

    I need 28oz of soda and I have 20oz already made what percentage of syrup and carbonated water do I need to get to the 28 oz.
  68. finance

    what is the interest charge with 10.90% APR (annual percentage rate) on a balance of $7100.00
  69. History

    Where can I find out what percentage of American soldiers receive psycological effects after war?
  70. PD-20

    Surveys on job satisfaction reveal that well over this percentage of American workers are dissatisfied with their jobs A. 10 B. 30 C. 50 D. 80
  71. Physics

    An engine works between the two temperatures 200 C and 120 C. Calculate its efficiency in percentage?
  72. Statistics

    x=3-0 . What percentage of the area under the normal curve lies to the left of ( 16.0% 15.80% 2.50% 0.50% having trouble with this my answer was 15.00% 0.15%
  73. elective maths

    The volume of a sphere is increased by 6% calculate the corresponding percentage increase in the area.
  74. chemistry

    percentage of error for experimental mole ratio, (1:3:1) along with theoretical ration (1:1:1:1:1) You need to clarigy what you want.
  75. Statistics

    Percentage of scores falling between a z-score of .54 and the mean. I can do the math, I just don't understand how to begin! Thank you.
  76. Statisitcs

    How do I find the value of the mean, when I am only given the std dev of a normal distribution and a percentage of values greater than another value.
  77. science

    if the actual mass of oxide at the end of the experiment is 130g, what is percentage yield?
  78. chemistry

    percentage of error for experimental mole ratio, (1:3:1) along with theoretical ration (1:1:1:1:1) answered below
  79. chemistry

    what is the percentage of sulfur and copper(I) sulfide, Cu2S is the answer 35.58% if not could you show me the formula
  80. Math

    Two sides of rectangle are 20 cm &10 cm. They are increased in ratio 2:3 & 3:7 . Find the percentage increase in its area?
  81. Math

    A percentage that represents the yearly increase in prices of things you buy is called
  82. chemistry

    the solution contain 6 grams of caustic soda dissolved per dm.find the percentage impurity
  83. Statistics

    In hypothesis testing, if a claim statement is asking to test a percentage, your graph is a T or Z line?
  84. Human Geo

    what languages are spoken in French Guiana? For each language can you provide the percentage of it.
  85. pre cal

    For a normal curve, what percentage of values falls beyond two standard deviations from the mean?
  86. chemistry

    given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
  87. chemistry

    given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
  88. chemistry

    What is the percentage of water in the hydrate CoCl2 • 6H2O? Show work I'm confused whether it's 52.17% or 45%
  89. Social Studies

    I need to know what percentage of workers in the US were unemployed by 1932. I'm seeing a lot of different answers on the internet. Thanks..
  90. Math

    For a stat class the mean of the midterm is 75 with a standard deviation of 7. What percentage of students scored between 67 and 83
  91. math

    3) In the country of Sweden, a bill becomes a law only if 38/50 of the senators approve it. What percentage 38/50? Answer Please !!
  92. Applied Behavioral

    About what percentage wo women experience hot flashes during menopause 1. 5% 2. 50% 3. 90% 4. 99% My answer is 50%
  93. Math

    a photocopier increase the sides of a square in a ratio of 5:4. what percentage has the size increased?
  94. chemistry

    when 1.00kg of copper reacts, 3.12kg of silver is recovered. what is the percentage yield?
  95. student council

    what is a good speech of secretary and vice presidents: this is what secretary it does attend council meetings take pictures at school functions distribute and collect surveys at school funtions and from classrooms participate in council activities vice
  96. Physics

    Some rental cars have a GPS unit installed, which allows the rental car company to check where you are at all times and thus also know your speed at any time. One of these rental cars is driven by an employee in the company’s lot and, during the time
  97. Math

    Greg is buying a bike on a payment plan. the equation y=20x+600 models the amount he has left to pay, where x is the number of weeks and y is the amount of money owed in dollars. Lin is also buying a bike on a payment plan. The bike costs $500. She will
  98. Math

    Greg is buying a bike on a payment plan. the equation y=20x+600 models the amount he has left to pay, where x is the number of weeks and y is the amount of money owed in dollars. Lin is also buying a bike on a payment plan. The bike costs $500. She will
  99. math

    Greg is buying a bike on a payment plan. the equation y=20x+600 models the amount he has left to pay, where x is the number of weeks and y is the amount of money owed in dollars. Lin is also buying a bike on a payment plan. The bike costs $500. She will
  100. health

    Your health care organization has called upon you to lead a work team to identify service-quality problems within the environment. Individual Portion Answer the following questions about work teams: •What are the benefits of a strong work team? •What