Questions Asked on
May 27, 2011

  1. chemistry

    A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.

    asked by john
  2. Math

    Log functions: A new car has an interior sound level of 70 dB at 50 km h. A second car, at the same speed, has an interior sound level that is two times more intense than that of the new car. Calculate the sound level inside the second car.

    asked by Aimee
  3. physics

    Find the horizontal distance the skier travels before coming to rest if the incline also has a coefficient of kinetic friction equal to 0.23. (The incline makes an angle θ = 20.0° with the horizontal.)

    asked by sarah
  4. geometry

    A rectangular solid has sides of 10 cm, 6.5 cm, and 8.3 cm. What is its volume and surface area?

    asked by leo
  5. algebra 2

    The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes

    asked by David
  6. Chemistry

    need to calculate percent yield of MgNH4PO4 . 6H2O obtained in my experiment using 10-52-10 plant food label as a guide to determine the theoretical yield of MgNH4PO4 . 6H2O. My calculations so far: air dry weight of MgNH4PO4 . 6H2O = 2.30 g Grams of

    asked by Julia
  7. Math 9th grade slopes

    A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?

    asked by Chelsea
  8. Chemistry

    How many moles of Fe3O4 are produced from 4.1 moles of Fe ?

    asked by paris
  9. algebra

    One jar holds 16 red marbles and 4 blue marbles. A second jar holds 75 white marbles and 25 blue marbles. What is the probability that a blue marble will be drawn from both jars?

    asked by Anonymous
  10. Science

    A researcher is gathering data from four geographical areas designated: South=1;North=2; East=3; West=4. The geographical regions represents a. categorical data b. quantitative data c. directional data d. either quantitative or categorical data

    asked by John
  11. Math

    Members at a yoga school pay $8 per class plus a one-time $90 membership fee. Non-members pay $12 per class. How many classes would a member have to take to save money compared to taking classes as a non-member?

    asked by Alexandria
  12. algebra

    Abbi invested $1,200 in a certificate of deposit with a simple interest rate of 2%. Find the interest earned in 9 years. Then find the total of principal plus interest.

    asked by breanna
  13. art history

    Compare and contrast the art and sculpture of Meso-America and Africa. In your discussion, include the purposes for this art and sculpture.

    asked by rosie
  14. C++

    File version maintenance utility   A team of software developers has been asked to develop a file version maintenance utility . The utility should maintain all the  version of a file. When a user modifies a file, the current version of the file should be

    asked by Shodipo john Olawale
  15. english

    Can you fix this sentence? "When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects."

    asked by amber
  16. PRECALCULUS

    An airplane is flying at a speed of 250 mph at an altitude of 4 miles. The plane passes directly above a radar station at time t=0. Find the distance s between the plane and the radar station after 5 minutes.

    asked by OSCAR
  17. verbs

    What are the verbs in this sentence? He suffered an injury to his knee, and this is causing him pain and discomfort.

    asked by Anonymous
  18. accounting.pls help me

    Is anyone can help me to solve this problem beloww. thank you very much. PROBLEM 1: On Jan 1, 2011, the Rhiri, Brit & Keisha partnership is formed. Rhiri and Brit contribute cash of $30,000 and $20,000 respectively, while Keisha contributes assets with the

    asked by jessie
  19. algebra

    The area A of a parallelogram with base b and height h is given by A= bh. Find the area of the parallelogram when the height is 15.4 cm and the base is 6.5cm

    asked by shawn
  20. algebra

    The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes

    asked by david
  21. algebra 1

    if you have two spinners,the first spinnerr has three sections: -1,-5,-6.the second spinner also has three sections:-5,4,8.if you spin both spinners and ADD the two numbers,what is the probability that the sum will be negative?

    asked by tyyyyyy
  22. Algebra 2

    Find the sum of the infinite series 1/3+1/9+1/27+... if it exists

    asked by Alexis
  23. English

    (give the syllable pattern only) legal, cedar, about, elect, frozen __________ (give the syllable pattern only) batter, hoodwink, lectern, lesser __________ (give the syllable pattern only) noble, puzzle, kettle, bugle

    asked by Kaitelyn
  24. Science

    What are the theoretical molar ratio values for Ag:Cu and Ag:AgNO3? Compare these values to the values you got in your experiment and compute a percent error for your work.

    asked by Christine
  25. Life orientation

    Critically discuss 5 ways in which the human or environmental problems impacts on the community

    asked by Anonymous
  26. Statistics

    Which of the following is NOT sensitive to extreme values? A) the range B) the standard deviation C) the interquartile range D) the coefficient of variation I pick B the standard deviation

    asked by Alex
  27. Math

    A container in the shape of a rectangle solid with the dimensions of 4 X 5 X10 is placed so that its height is 10. Water fills the container to a heaight of 6. The container is then turned so that the base dimensions are 4 X 10. Determine the height of the

    asked by Alex
  28. English

    Which word would you use in American English instead of "top up"? (When you put money on your cell phone) I need you to check these sentences, too. Than you. 1) They set out on a windy day though small boats had been warned to stay off (I need a synonym)

    asked by Henry1
  29. sociology

    What are some examples of emerging mores related to dating

    asked by alli
  30. Math

    In how many different ways can you arrange three 4 X 8 tiles to form a rectangle?

    asked by Louise
  31. business

    180 Flip - a 180 degree boardslide varial kickflip 360 Flip – A 360 degree boardslide varial kickflip 50-50 – both trucks grinding on an object 5-0 – only the back truck grinding on an object Backside – turns or rotations in the direction your toes

    asked by john
  32. algebra

    When factored completely 4x^2y-8x^2y^2=2xy(2x-4xy+3y)

    asked by stellalue
  33. Math 116

    In 1920, the record for a certain race was 45.7 sec. In 1950, it was 45.1 sec. Let Ra9ta0=the record in the race and the number of years since 1920. A. Find a linear function for the data B. Use the function in (a) to predict the record in 2003 and in

    asked by Kim
  34. math

    Janet is painting her fence, which is 26 m long. If she has already finished 12 m, how many more meters of fence have to be painted?

    asked by lisa
  35. Beautiful Paradise

    I discover a new island as I'm travelling. I am the first to discover the land so I am granted a right to own it and I can establish my own nation there. There is a lot to this project. And I'm wondering if you could suggest a good name for this paradise.

    asked by mary
  36. Suggestions

    I am doing a Brochure for my Economic Project. And I'm literally attracting customers to come to my island and buy things since I and my crew have set up our very own business there. Could you suggest me good sites on which I can make a brochure. I have

    asked by mary
  37. History

    What was one SOCIAL REASON why the Han Dynasty fell ?

    asked by Jamale
  38. polynomial

    (7x+4)-(2x+9)

    asked by Anonymous
  39. math

    tha sum of two number is 25 times tha difference between these two numbers.if 75%of smaller number is 18 what is tha other number.

    asked by shweta
  40. physics

    what is the maximum velocity of a 6 kg object oscillation on a 4 m string. If the mass starts when the string makes a 45 degree angle with horizontal when the object is released from rest

    asked by Anonymous
  41. rate of change / slopes

    A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?

    asked by Chelsea
  42. algebra

    When factored completely 4x^2y-8x^2y^2=2xy(2x-4xy+3y)

    asked by stellalue
  43. Math

    Here's a frequency distribution table for the speeds of a sample of automobiles. Speed(MPH) Frequency Midpoint(I found) 50-54 2 52 55-59 4 57 60-64 5 62 65-69 10 67 70-74 9 72 75-79 5 77 I am trying to find the variance but whatever I do I can't seem to

    asked by Allen
  44. algebra1

    there is an class of 28 students.13 students are girls. what is the ratio of girls to boys in the class?

    asked by Anonymous
  45. science

    What do you think of carbon offsets. Do you agree/disagree?

    asked by Anonymous
  46. algebra 1

    a model submarine that is 15 inches long and 3inches tall.the full size submarine was 60 feet tall.how long was the full size submarine?

    asked by tyyyyyy
  47. science

    What do you think of carbon offsets. Do you agree/disagree?

    asked by Anonymous
  48. algebra 1

    The perimeter of a triangle is 72 cenimeters.the second side is twice as long as the first side.the third side is four centimeters shorter than the second side.how long is the first side?

    asked by tyyyyyy
  49. trig

    find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0

    asked by shinel
  50. pre-algebra

    which shows the ratio as a fraction in simplest form? 30 to 65?

    asked by alisa
  51. science

    what causes tornadoes to happen?what is the difference betwwen a tornado and a hurricane?

    asked by danny please help!!
  52. Elementary Algebra

    I need to translate to an algebraic expression. 3/10 decreased by the product of 7 and the difference of A and 4

    asked by Tonia
  53. algebra1

    simplify the following rational expression: 4(x+2)^8 (x-3)^6 __________________ 20(x+2)^2 (x-3)^12 note:the expression is all together.sorry for how it looks.

    asked by tyyyyyy
  54. algebra 1

    4(x+2)^8 (x-3)^6 ________________ 20(x+2)^2 (x-3)^12 note:sorry that the expression on top of the line is so farr

    asked by tyyyyyy
  55. chart audits

    Outline a possible procedure to conduct chart audits

    asked by Anonymous
  56. History checkpoint

    From the list provided below, you must decide if each item was an initiative only within Kennedy’s New Frontier, if it was proposed by both presidents, or if it was an initiative only within Johnson’s Great Society. For each numbered item, place an

    asked by KRP
  57. math

    the sale of flower by alin,izzati and damia are in the ratio 3:9:7.the difference between the sales by alin and dania is rm 36.how much did izzati get from her sales?

    asked by tyramichy
  58. Earth Science

    which of the following locations in New York State is most likely to have the smallest range in temperature? 1. Long Island 2. the Catskills 3. Albany 4. the Adirondack Mountains

    asked by Danny
  59. Finance

    Having previously identified the location of its Greenfield investment, Acme, a multi-billion public MNE that is incorporated in the U.S., must next obtain external financing for its proposed overseas production facility. It has been estimated that the

    asked by Roy
  60. COM 155

    Write 2 paragraphs about how interest rates affect our purchasing descisions. Identify the topic sentence by underlining it. Interest rates is the price that the lender sets for the borrower to pay as a fee to borrow money. Depending on whether or not

    asked by Richelle
  61. SCIENCE(PHYSICS)

    a train is moving on a straight track n travels at a speed of72km/hr and passes a pole in 3 seconds. find the time taken by the train to pass the bridge of length of 540 m?

    asked by YASH
  62. misc.

    if something says your pursuing a college degree does that mean your in college are are planning in the future to go to college?

    asked by Sara
  63. sci

    Replacing pillage and destruction, “going-green” seems to be today’s top advocacies among business establishments in taking part for promoting energy conservation and environmental friendly themes. Do you think we’d ever have a time when this

    asked by meshelle
  64. Economics

    which of the following factors will not lead to a decrease in demand for a good? A) an increase in the price B) a decrease in the price of substitute products C) An unsuccessful advertising campaign for the good C) a decrease in the consumer incomes I

    asked by Ed
  65. algebra 1

    if you have a 10ft ladder placd leaning against the wall,and the ladder is 6ft from the wall.how high does the ladder reach on the wall?

    asked by tyyyyyy
  66. earth

    Which of the following is NOT one of the six steps of IPM? Choose one answer. a. evaluating and recording results. b. properly identifying pest damage. c. Trapping pests for return to native ecosystems. d. learning pest and host life cycles. Which of the

    asked by raymond
  67. science

    what causes hurricanes to happen?

    asked by danny please help!!
  68. math

    There are approximately 4 lbsof muscle for every 5 lbs of body weight of a certain animal. For a 125-lb animal, how much of the weight is muscle?

    asked by Leina'ala
  69. school in general

    Hi i have a question im currently in 7th grade but i was held back a year in first do you think there would be any possible way to advance to 8th grade just curios I believe I have a wide enough knowledge span to pull it off but im just questioning the

    asked by JESSE
  70. trig

    sec(90degrees -theta)

    asked by john
  71. Math

    How many digits are in the smallest positive number divisible by th first ten numbers in the Fibonacci sequence?

    asked by Eli
  72. math

    when 33 is subtract from a number it reduce to its 5/8.what is number.

    asked by shweta
  73. HISTORY

    WHAT WAS THE MOST EFFECTIVE REMEDY FOR PLAGUE

    asked by BOB
  74. HISTORY

    What was the most effective remedy for plague? A. Snake venom B. Quarantine C. Abstaining from eating certain foods D. Armenian clay

    asked by BOB
  75. math

    18x - 16 + 6( 2 - 2x) = 50

    asked by frances
  76. sci

    Would you support stores such as Costco because they have never stored a single plastic bag and push consumers to use alternate means to carry the stuff that they buy?

    asked by meshelle
  77. English

    I REALLY need help in this Double Shift word problem by Gloria Rosenthal. The following real or fictional people all "do" or "did" something; their activities are dependent on their names. From each clue, identify the person, take their first name or

    asked by james
  78. chemistry

    how much of 0.5normal fas is equal to molar

    asked by eswari
  79. english macbeth

    i really nedd to know what i'm suppose to write in macbeth's theme superstition? i know that it's about the witches and their prophecies and apparitions and about banquo's ghost but what should i emphasize on??

    asked by mona
  80. algebra

    The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.

    asked by shawn
  81. Pre-Algebra B

    A Venn diagram with two circles is drawn. Each circle has a diameter of 10 cm. The overlapping area is 20 cm^2. Find the total writing area within the diagram.

    asked by tyryssa
  82. microeconomics

    Explain how Demand, Elasticity, and Total Revenue are all related to each other. Explain this relationship using at least two examples that incorporates all three concepts I have the concepts and how they relate I just need one more example and my brain is

    asked by DebGut
  83. math

    Convert to decimal notation. 2/3

    asked by shawn
  84. Mathematics for business and Finance

    The Patel family recently purchased a home, taking out a mortgage of $235,000 at 8 1/2% for 25 years. Excluding taxes and insurance, what is the monthly PITI payment of their loan?

    asked by Sandy
  85. Brand Image--Need of Extreme Help

    How do the components of Adidas create the product image? The components are the Logo—which is the 3 stripes, is there a trademark for Adidas? The other component is the slogan which is—Impossible is nothing. The Brand name which is Adidas is also a

    asked by mary
  86. Advertising--VIdeo

    I have to find two video ads on the net. I want them to be really Influential. Is there any on net that you know which are really influential. I don't watch TV that much so I'm not aware of any commercials that people may get hooked onto. Brand name ads

    asked by mary
  87. math(easy integration)

    find the integration of absolute x from -4 to 2? could anyone show me the way to get 10? thanks

    asked by ja
  88. Chart Aduit

    research and recommend associations that may want to be affilated with to keep themselves informed on health care standards

    asked by Anonymous
  89. geometry

    what is the approximate measure of angle A to the nearest tenth of a degree

    asked by logan
  90. physics

    A 0.8 kg block is shot horizontally from a spring, as in the example above, and travels 0.545 m up a long a frictionless ramp before coming to rest and sliding back down. If the ramp makes an angle of 45.0° with respect to the horizontal, and the spring

    asked by sarah
  91. Math

    The product of three consecutive odd integers reduced by 23 is 99 less than the cube of the sum of the smallest number and 2. Compute the mean of the three integers.

    asked by Theo
  92. SCIENCE(PHYSICS)

    a train is moving on a straight track n travels at a speed of72km/hr and passes a pole in 3 seconds. find the time taken by the train to pass the bridge of length of 540 m? Sir in the solution i understood why we will get27 sec. but why we will add 3 sec?

    asked by YASH
  93. rate of change / slopes

    A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?

    asked by Chelsea
  94. business

    • Birdhouse Completes • Charger • Chase CAB • Flip Appleyard • G-Board • Kryptonics Eagle • Maple Bronze Series • Ocean Pacific Longboards • Sector Nine • Tony Hawk • World Series Gas Chamber • Worldhouse Detention Desk

    asked by asdfjkl;
  95. algebra 2

    how would you sold (x^3)^9

    asked by Cass
  96. Geometry

    Find the area of 33m, 30m, and 36.5m.

    asked by Stacey
  97. History

    How and why did warfare change under classical societies such as China?

    asked by Anonymous
  98. English

    I REALLY need help in this Double Shift word problem by Gloria Rosenthal. The following real or fictional people all "do" or "did" something; their activities are dependent on their names. From each clue, identify the person, take their first name or

    asked by james
  99. physical science

    how many beats in 206 Hz

    asked by ronald
  100. MATH

    How can I find the line of best fit from a table: 3 4 8 10 15 21 27 31 35 33 47 45

    asked by Branson
  101. calculus

    The tangent to y = (ax)+b/(sqrt x) at x =1 is 2x-y=1. Find a and b. help?

    asked by Maya
  102. com

    why is the sequence of your paragraphs important in an essay

    asked by Joseph
  103. history 135

    Most Significant Events 1950-1990

    asked by Gloria Jackson
  104. Math 116

    Correction Let R(t)= the record in the race.

    asked by Kim
  105. grammar

    is oi like in point long sound or short sound?

    asked by Phillip
  106. English

    I'd like you to check these few sentences for me. Thank you very much. 1) I'd hate to lose (and not losing) my ring because it was my grandmother's. 2) I use the internet to do school research and to look up information I need for school. 3) I'm a Tim

    asked by Henry1
  107. accounting

    please can you help how to get the answers fpr this problem solving .. I am really could not get the correct answer. problem: On Jan 1, 2011, the Rhiri, Brit & Keisha partnership is formed. Rhiri and Brit contribute cash of $30,000 and $20,000

    asked by jessie
  108. math

    Find a function f which satisfies the integral equation Int(bounded from 0 to x) t*f(t)dt = Int(bounded from x to 0)(t^2+1)*f(t)dt +x

    asked by bob
  109. earth science

    which of the following surfaces would absorb the least amount of insolation? 1. an open field 2. a forest 3. an asphalt parking lot 4. a glacier

    asked by Danny