Jeconiah

Popular questions and responses by Jeconiah
  1. Maths

    Bill and Steve decide to spend the afternoon at an amusement park enjoying their favorite activities, the water slide and the gigantic Ferris wheels. Their tickets are stamped each time they slide or ride. At the end of the afternoon they have the

    asked on March 25, 2013
  2. Maths

    Margie is responsible for buying a week's supply of food and medication for the dogs and cats at a local shelter. The food and medication for each dog costs twice as much as those supplies for a cat. She needs to feed 164 cats and 24 dogs. Her budget is

    asked on March 25, 2013
  3. Advance mathematics

    Find the roots of x3-x2-10x-8=0

    asked on June 6, 2012
  4. Chemistry

    Calulate the volume of carbon dioxide produced when 0.5 tonnes of iron are produce.When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed.

    asked on June 5, 2012
  5. Physics

    A model helicopter of mass 5kg rises vertically from rest to a height of 60m with a constant acceleration in 10 seconds. Calculate the total thrust with which the helicopter rises.

    asked on August 29, 2012
  6. Chemistry.

    Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioide are formed. Answer: 500000g/112g/mol =?/3 = 13392.9L

    asked on June 7, 2012
  7. Math

    An aeroplane needs to fly due east from city A to city B at a speed of 400km/hr. However a 50km/hr wind blows constantly from the north. In what direction must aeroplane head and at what speed must it travel?

    asked on August 27, 2012
  8. Chemistry-stoichiometry ...help!

    Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L

    asked on June 7, 2012
  9. Please help! Chemistry

    In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).

    asked on August 25, 2012
  10. Mathematics-please help!

    A piece of wire 168cm. long is to be cut into two pieces, each to be bent to make a square. The lenght of a side of one square is to be 2cm. greater than the lenght of aside of the other. What is the area of the smaller square? Ans= 80

    asked on June 9, 2012
  11. Chemistry-stoichiometry ...help!

    Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L

    asked on June 7, 2012
  12. Maths

    Solve for x: log5(x-2)+ log5 (x-4) = log6(x-1)

    asked on March 25, 2013
  13. Please help! Chemistry

    In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).

    asked on August 25, 2012
  14. Maths

    Solve for X: log4(3x-7)^2 = 10

    asked on March 26, 2013
  15. Chemistry

    An aqueus solution of sodium mitrate(NaNO3) contains 0.85 grams of sodium nitrate and its concentration is 0.1mol L^-1. What is the volume. in millilitres, of the sodium nitrate solution?

    asked on August 25, 2012
  16. Chemistry

    Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.

    asked on June 6, 2012
  17. Math

    what is the longest river in the world?

    asked on April 20, 2013
  18. Math

    log(x-2) +log8 (x-4) =log6 (x-1)

    asked on March 26, 2013
  19. Algebra- please help me!

    4a^2+9b^2+25c^2-12ab+20ac-30bc divided by 2a-3b+5c.

    asked on February 26, 2013
  20. Algebra

    simplify: [(2x^2+5x-6)/(5x^2+7x-6)]*[(20x^2-7x-3)/(6x^2-25x+4)]/[(4x^2-11x-3)/(6x^2-19x+3)]

    asked on February 19, 2013
  21. Please help quick! Maths

    Solve this pair of equations by the graphical method: 4x+y=9 , 3y-2y=49

    asked on August 26, 2012
  22. Chemistry

    2.8g of iron(¡¡) reacted with 100ml of 2M sulfuric acid. A.Which reactant is in exces? B. What volume of hydrogen gas is produce at RTP? C. How many moles of iron sulfate is produced? D. How many atoms of hydrogen gas were evolved?

    asked on June 6, 2012
  23. Math

    Find the exact value of sin 2teta=2 sin teta cos teta given that cos teta =2/3, 0

    asked on September 4, 2012
  24. Physics

    Two forces of 4 N and 6 N act at a point along the same horizontal line. What is its resultant force?

    asked on August 29, 2012
  25. Mathematics-please help!

    Solve for x: 9/28 + 3/x+2 = 3/4.

    asked on June 9, 2012
  26. Chemistry

    2.8g of iron(¡¡) reacted with 100ml of 2M sulfuric acid. A.Which reactant is in exces? B. What volume of hydrogen gas is produce at RTP? C. How many moles of iron sulfate is produced? D. How many atoms of hydrogen gas were evolved?

    asked on June 6, 2012
  27. Chemistry

    When sulfuric acid reacts with ammonia solution an ammonium salt and water are produced. Calculate the volume of 3mol/dm3 of acid required to react exactly with 25ml of a 2.5mol/dm3 of ammonia solution.

    asked on June 5, 2012
  28. Visual Basic Programming...Very Urgently!!!

    Please Can someone help in proving the code about transactiopn program of images. it must have a two diffetrent form that will perform simultaneously which menas that first form will have login password to log in to use the transaction. Please your help is

    asked on April 16, 2013
  29. Maths

    Slove for x: ln (x^2 -6x -16) = 5

    asked on March 26, 2013
  30. Please help quick! Maths

    Solve this pair of equations by the graphical method: 4x+y=9 , 3y-2y=49

    asked on August 26, 2012
  31. Please Help!!!! Maths

    How long will it take for a $3000 savings account to double its value at a simple interest rate of 10%?

    asked on April 3, 2013
  32. Maths

    Solve for x: 6log(x^2 +1) - x = 0

    asked on March 26, 2013
  33. Maths A

    Sketch the graph of y=x^2-x and find the minimum value of y.

    asked on August 27, 2012
  34. Please help quick! Maths

    Use substitution method to solve x-2y-5=0, 3x-5y=8

    asked on August 26, 2012
  35. Mathematics-please help!

    If cos x >0 ans sin x= -4/5, then tan x=?

    asked on June 9, 2012
  36. Chemistry

    Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced. 2.5M * 0.025L/2=x/132 =4.125g

    asked on June 6, 2012
  37. Chemistry

    Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.

    asked on June 6, 2012
  38. Chemistry

    Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.

    asked on June 6, 2012
  39. Chemistry

    Calculate the mass of lithium hydroxide that must be added to 50ml of water so that it may react exactly with 5ml solution of 1.5M nitric acid.

    asked on June 5, 2012
  40. Problem Solving! please I need more help!!

    How long will take for a $3000 savings account to double its value at simple interest rate of 10%?

    asked on April 7, 2013
  41. Algebra

    Find the quotient and remainder when: (x+1)+(x-1) divided by [1-(x+1)(x-1)]

    asked on February 25, 2013
  42. Algebra

    Find the quotients and remainder when: 4a^2 + 9b^2 + 25c^2 - 12ab + 20ac - 30bc divided by 2a - 3b + 5c

    asked on February 25, 2013
  43. Algebra

    (3a^2+6ab-a-2b)/(9a^2-6a+1)

    asked on February 19, 2013
  44. Please help!! Chemistry

    Ethanol is produced by the action of yeast (catalyst) on sugar cane juice. (1).What is specific name of this reaction? (2.) Write a simple word equation of this reaction.

    asked on August 25, 2012
  45. Please help quick!! Mathematics A

    Solve for x: 9^x-3^x-8=0

    asked on August 7, 2012
  46. Please help quick!! Mathematics A

    Solve for x: 9^x-3^x-8=0

    asked on August 7, 2012
  47. Mathematics-please help!

    The first term of the sequence is -168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.

    asked on June 9, 2012
  48. Please Ms Sue Help me! Alhorithm

    Solve for the value of x: 6log(x^2+1)-x=0. I can't even solve it.

    asked on April 13, 2013
  49. Maths

    Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = )

    asked on April 1, 2013
  50. Narrative story

    Please help me to write a short narrative story based on non-traditional hero.

    asked on March 9, 2013
  51. Algebra

    please help me solve these question, simlify: (x^4-y^4)/(x^3-y^3)

    asked on February 19, 2013
  52. Physics

    Define linear momentum.

    asked on August 29, 2012
  53. Maths A

    Write down the period of the function y=cos x

    asked on August 27, 2012
  54. Maths A

    When 3square root of 5= square root of a, find the value of a.

    asked on August 27, 2012
  55. Maths

    Solve this using elimination method: 4x-3y=-4

    asked on August 25, 2012
  56. Please help!! Chemistry

    Ethanol is produced by the action of yeast (catalyst) on sugar cane juice. (1).What is specific name of this reaction? (2.) Write a simple word equation of this reaction.

    asked on August 25, 2012
  57. computer science

    What exactly do computer scientists do?

    asked on August 11, 2012
  58. Mathematics-please help!

    The first term of the sequence is -168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.

    asked on June 9, 2012
  59. Chemistry

    Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.

    asked on June 6, 2012
  60. Chemistry

    2.8g of iron (¡¡) reacted with 100ml of 2M sulfuric acid. Which reactant is in excess? And what volume of hydrogen gas is produced at RTP?

    asked on June 5, 2012
  61. Please help me solve it. Math

    solve for the value of x: 6log (x^2+1)-x=0. please help me because I do not have any idea in this topic.

    asked on April 8, 2013
  62. Inequalities.please a needy help here!!

    solve and graph y>2x-1

    asked on April 6, 2013
  63. Maths

    Simplify the following: (54^1/4)/ (6^3/4)(12^-1/2)

    asked on March 26, 2013
  64. Algebre

    simplify: {[3x^2+10x-8]/[5x-15]}/{[x^3+64]/[x^2-9]}

    asked on February 19, 2013
  65. Chemistry

    When secondary alcohol oxidized it produces alkanes. Draw the structure of 2,2 dimethyl 3-butanol + oxygen and give the names for it.

    asked on September 4, 2012
  66. Math

    The displacement of a particle is given by: x=t^3-7/2t^2+2t-1. Find the particles initial displacement. And find when the particle is at rest.

    asked on August 27, 2012
  67. Maths A

    Find the coordinates of the vertex of the parabola:y=x^2-8x+2

    asked on August 27, 2012
  68. Please help. Chemistry

    What is the MAIN reason for storing sodium metal in mineral oils?

    asked on August 25, 2012
  69. Please help!! English

    Formulate the acronym for "READING THROUGH PARTNERSHIP"

    asked on August 11, 2012
  70. Mathematics-please help!

    If cos x >0 ans sin x= -4/5, then tan x=?

    asked on June 9, 2012
  71. Chemistry. Please help quick!!!

    Is this chemical formula (Fe2O3) iron oxide?

    asked on June 7, 2012
  72. Chemistry.

    Is this formula (Fe2O3) iron oxide?

    asked on June 7, 2012
  73. Chemistry

    28g

    asked on June 6, 2012
  74. Please Help!!!! Maths

    Over a three-year period, the total interest paid on a $4500 loan was $1620. What was the interest rate?

    asked on April 3, 2013
  75. Please Help!!!! Maths

    In order to earn $1,000 in interest over 2 years at an annual rate of 4%, how much principal must be put into a saving account?

    asked on April 3, 2013
  76. Maths

    Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = O

    asked on April 1, 2013
  77. Maths

    Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = -1

    asked on March 26, 2013
  78. Please help quick. Algebra

    solve: 2x^2-3x+5 divided by 2x-1

    asked on February 26, 2013
  79. Algebra

    solve 2x^2-5x-1 divided by x-3

    asked on February 25, 2013
  80. Algebra, please help quick

    simlify the following to the lowest terms: (a) [x^2-y^2]/[x^2+y^2] (b) [3a^2+6ab-a-2b]/[9a^2-6a+1] (c) [x^4-y^4]/[x^3-y^3] (d) [36x^3y^4z]/[64x^5y^2z^3]

    asked on February 19, 2013
  81. Math

    Find the exact value of the product sec teta csc teta given that sin teta=3/5 and cos teta =4/5

    asked on September 4, 2012
  82. Please help quick! Math

    The sum of three times a first number n twice second number is 8. If the second number is subtravted from twice the first number, the result is 3, find the numbers.

    asked on August 30, 2012
  83. Maths A

    A cylindrical can is open at both ends. It is of height 14 cm and radius 4.2 cm. Find the external surface area of the can.

    asked on August 27, 2012
  84. Maths A

    When 3square root of 5= square root of a, find the value of a.

    asked on August 27, 2012
  85. Chemistry-please help!

    What is the chemical formula for alluminium hydroxide?

    asked on June 21, 2012
  86. Chemistry-please help!

    What is the chemical formula for alluminium hydroxide?

    asked on June 21, 2012
  87. Mathematics-please help!

    Solve for x: 9/28 + 3/x+2 = 3/4.

    asked on June 9, 2012
  88. Mathematics-please help!

    The vertices of a triangle are (-2,3),(2,1) and (2,7). What is the area of this triangle?

    asked on June 9, 2012
  89. Please help me...Please....Math

    Find the coordinates by solving and graphing the equation : -x^2-x+30=0

    asked on April 10, 2013
  90. Polynomials

    solve (2x)/(-x^2 + 2)

    asked on March 6, 2013
  91. Polynomials..quick help....

    if (x-7) and (x-4) are the factors of px^3 + qx^2 - 5x +84, find the values of p and q.

    asked on February 28, 2013
  92. Please help quick

    simplify: (x^2-y^2)/(x^2+y^2)

    asked on February 19, 2013
  93. Algebra

    simpliy the following: (a) {[4x^2-49]/[8x^3+27]} *{ [4x^2+12x+9]/[2x^2-13x+21]} (b) {[x^2+x-6]/[x^2+7x-6]}*{[20x^2-7x-3]/[6x^2-25x+4]}*{[4x^2-11x-3]/[6x^2-19x+3]}

    asked on February 19, 2013
  94. please help quick! Calculus

    solve 6x-2x^3 with first principal

    asked on February 10, 2013
  95. social science

    what is deepest lake in the world?

    asked on February 5, 2013
  96. Math

    Let p(x)=x^3+4x^2+x-6. Find a polynomial g(x) can be (remainder) r, such that p(x) can be expressed in the form p(x)=(x-2)g(x)+r

    asked on September 4, 2012
  97. Physics-please help quick!!

    When the object is placed beyond 2f, where should you put your eyes for getting the clear image of it?

    asked on June 10, 2012
  98. Quick help! Algebra

    simplify: (9x^2-16/x+1)/(4x-3)

    asked on February 19, 2013
  1. Chemistry

    2.416g

    posted on June 6, 2012
  2. Chemistry

    21.4g

    posted on June 6, 2012