Lucky

Newest questions posted by Lucky
  1. Civic education

    What are some examples of civic problems?
  2. Physics

    A uniform rod of weight 300N and 2m long is hinged to the floor at one end so that it can rotate in the vertical plane. The other end of the rod is tied to a point on the ceiling vertically above the floor hinge by means of a rope 2.5m long. The vertical
  3. MAths

    Supplement of angle is four times its complent angle find angle
  4. trigonometry

    If cos x = 4/5, 0° x 90°, find the value of (1 + tan x)/(1 - tan x)
  5. Math

    5. How would you change this sentence to a true statement? b. Every irrational number is a rational number. c. Every irrational number is a real number. •• d. Every irrational number is a whole number. e. Every irrational number is a perfect square.
  6. Math

    19. Which set of numbers is ordered correctly from least to greatest? A. 0,-3,-[4],[-5],8 B. 8,[-5],-[4],-3,0 C. -[4],-3,0,[-5],8 D, [-5],-[4],-3,0,8 ••
  7. geometry

    Constuct a triangle ABC ,given that angleA is 70 degree & angle C is 35 degree and length of perpendicular from A on BC is 5cm .meausre BC
  8. aLGEBRA

    hOW MANY STUDENTS IN A CLASS IS POETS AND HOW MANY NOVELISTS WHEN THERE ARE 24 STUDENTS IN THE CLASS AND POETS OUTNUMBER NOVELISTS 5 TO 3
  9. math

    tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? solution please
  10. math

    tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? #please give it, the complete solution. please hurry
  11. chemistry

    find the percentage by mass of nitrogen present in (NH4)2SO4
  12. L.o

    What ar three practical measures to deal with this environmental issue that causes ill-health on a personal level?
  13. algebra

    Solve the inequality graph the solution set 26+6b>2(3b+4) answers are. All real numbers, b11/2, no solution thanks
  14. algebra

    Show all steps evaluate the expression for the given value of the variable 5a+5b,a=-6,b=-5thanks
  15. a

    A rectangle is 3times as long as it is wide the perimeter is 60cm. Find the dimensions of the rectangle round to nearest tenth if necessary answers are 7.5cm.by22.5cm., 7.5cm.by52.5cm., 20cm.by60cm., 15cm.by22.5cm thanks
  16. algebra

    Solve the equation-5y-9=(y-1) answers are-1/2, -21/2, -2, ,2/4
  17. algebra

    Show all steps evaluate the expression for the given value of the variable 5 a+5b,a=-6,b=-5
  18. Word problem

    10 men are fishing in a row boat. The center is empty. The 5 men need to swap places. A man can move to his seat if it is empty or step over one person to an empty seat what are the minimum moves needed for the five men to swap places. My answer is 25
  19. Math word problem

    Jeff went fishing yesterday and caught a large fish. Upon measuring it he found that the head was 6 inches long. He also noted that the tail was as long as the head plus one-third of the back and that the back was as long as the tail plus twice the head.
  20. Working backwards (problem solving)

    a store bought some calculators for $400 wholesale and sold all but 10 of them retail for $280 total. The store paid a whole number of dollars for each and received a whole number of dollars each week. If the store made a profit on the sale of each
  21. median

    calculating the range of 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 Is the range 16-0 =16 if this is the range what is the median 9 or 10
  22. Math

    Last year company x produced 96.8% of a certain product. If company y produced the remaining amount of this product what percent did company y produce?
  23. Math

    Last year company x produced 96.8% of a certain product. If company y produced the remaining amount of this product what percent did company y produce?
  24. Life orintation

    Name two community organisations that are involved in supporting or giving redress to environmental factors. Explain how these community organisations are involved in redressing these issues.
  25. chemistry

    please i need example of hno3 cuo
  26. physical science

    A builder pushes a wheelbarrow loaded with sand ,from rest at point A,up a ramp of unknown length ,which is inclined at unknown angle ,vertical height of unknown 2,75m
  27. chemistry

    A generic salt, AB, has a molar mass of 313 g/mol and a solubility of 4.30 g/L at 25 °C. What is the Ksp of this salt at 25 °C?
  28. Life orientation

    Discribe the life style of cancer and explain 5(more) factors that contribute to the cancer
  29. Life orientation

    In 10-15 critically discuss 5 ways in which the human or enviromental problem impacts on the community.provide relevent sources to support your claims
  30. chm

    Which of the following facts is evidence for the existence of induced dipole-induced dipole interactions between molecules? Answer >>>Ions in water become surrounded by water molecules and this is what we observe as "dissolving." Water freezes into a solid
  31. Chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?? 10 carat (K) electroplated gold jewelry 24 carat (K) gold jewelry (i know this is pure gold) 18 carat (K) gold jewelry Are these right? CaCl2>>calcium chloride
  32. chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?? 10 carat (K) electroplated gold jewelry 24 carat (K) gold jewelry (i know this is pure gold) 18 carat (K) gold jewelry Are these right? CaCl2>>calcium chloride
  33. science

    a rubber ball thrown at a height reaches the ground and keeps bouncing for sometime before coming to rest.
  34. chemistry

    consider the reaction, 2Al(OH)3+3H2SO4---->Al2(SO4)3+6H2O a. Given that 152g of H2SO4 reacts with 234g of Al(OH)3 Howmany grams of Al2(SO4)3 will be theoretical generated? b. which of the reactants is the limiting reagent? c. If the actuall yield was 135 g
  35. math

    A ladder , 5 meter long , standing on a horizontal floor , leans against a vertical wall . If the top of the ladder slides downwards at the rate of 10 cm/sec . Find the rate at which the angle between the floor and the ladder is decreasing when the lower
  36. chemistry

    what is the molarity of a solution containing 15.0 g of NaCl in 1.25 L of solution?
  37. Liff Orientation

    In 10-15 lines critically discuss 5ways in which the human or environmental problem impacts on the community.provide relevant sources to support your claims.
  38. Math

    On Dec 1,2007,you could buy a 10-year U.S.Treasury note(a kind of bond)for $10,000 that pays 4.21% simple interet every year through Dec 28,2017.How much total interest would it earn by then? Thanks!
  39. Physics

    Calculate the net charge on a substance con- sisting of a combination of 3.5 × 1013 protons and 6.3 × 1013 electrons. Answer in units of C.
  40. Physics

    A certain moving electron has a kinetic energy of 1.01 × 10−19 J. Calculate the speed necessary for the electron to have this energy. The mass of an electron is 9.109 × 10−31 kg. Answer in units of m/s.
  41. math

    In 1991, the separation between goalpost uprights in college football changed from 23 feet 4 inches to 18 feet 6 inches. What percent reduction was this? (accurate to tenths)
  42. geometry

    the perimeter of a rectangle is 70m. if the width were doubled and length were increased by 24m, the perimeter would be 142m. what are the length and width of the rectangle?
  43. Economics

    The productivity of a single resource in producing wheat and microchips in both Canada and Japan: One unit of resource produces: Canada 50 tons wheat, 20 micrchips and Japan 2 tons wheat, 12 microchips. (b) Suppose Canada is endowed with 2 units of this
  44. Economics

    The productivity of a single resource in producing wheat and microchips in both Canada and Japan: One unit of resouce produces: Canada 50 tons wheat, 20 microchips and Japan 2 tons wheat, 12 microchips. (a) What is the opportunity cost of producing a ton
  45. statistics

    A recent report stated "Based on a sample of 250 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than company-hired truck drivers." This statement is an example of __________.
  46. statistics

    The weight of corn chips dispensed into a 19-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 19.5 ounces and a standard deviation of 0.1 ounce. Suppose 100 bags of chips are randomly selected. Find
  47. statistics

    To win at BIG GAME in a certain state, one must correctly select 6 numbers from a collection of 49 numbers (1 through 49). The order in which the selections is made does not matter. How many different 6-number selections are possible, assuming no
  48. Psycology

    The DSM-IV is an important tool for clinicians. It provides a standard for diagnoses to be standardized across psychology; however, the DSM-IV is not as precise for diagnosing personality disorders as some psychologists would like. Give an example of each
  49. probability

    If you were to spin a spinner that had eight equal parts labled 1-8 three times what is the probability that all three numbers are (3 or greater than five)?
  50. accounting

    What entries would the bookkeeper have made ie the cheque is not presented for payment by the payee?
  51. Economics

    (Value in billions of dollars) Consumption = 140 Business fixed and residential investment = 27 Inventory stock at the end of 2003 = 10 Inventory stock at the end of 2004 = 5 Depreciation = 12 Government outlays = 80 Government purchases = 65 Total