Tania

Popular questions and responses by Tania
  1. Precal

    The number of people in a town of 10,000 who have heard a rumor started by a small group of people is given by the following function: N(t) = 10,000/(5 + 1245e-.97t) 14. How many people were in the group that started the rumor? 15. How many people have

    asked on November 5, 2015
  2. Physical science

    Find the acceleration of a hamster when it increases its velocity from rest to 10 in 2.4

    asked on June 11, 2013
  3. Physics

    A hot-air balloon is rising vertically at a speed of 10 m s–1. An object is released from the balloon. The graph shows how the velocity of the object varies with time from when it leaves the balloon to when it reaches the ground four seconds later. It is

    asked on February 16, 2011
  4. Chemistry

    2C6H14+19O2 (Arrow)12CO2+14H2O 99.01 g of CO2=..........mol of O2? 188.73g of O2=..............g of C6H14?

    asked on November 8, 2017
  5. Math

    The perimeter of a rectangle is 60cm. It's length is 6cm. What is its width?

    asked on December 11, 2014
  6. physics

    An athlete runs from one end to the other end of a semicircular track whose radius is 70m. What is the total distance covered by the athlete and what is his displacement?

    asked on June 26, 2014
  7. science..physics

    An athlete runs from one end to the other end of a semicircular track whose radius is 70m.what is the total distance covered by the athlete and what is his displacement?

    asked on June 26, 2014
  8. math

    the lenght of a rectangular room is 6 feet longer than twice the width. If the room's perimeter is 132 feet, what are the room's dimensions?

    asked on October 22, 2013
  9. eco

    2. It has been estimated that the price elasticity of demand for attending baseball games is 0.23. Other things held constant, a 10 percent increase in attendance can be explained by a: A. 43.48 percent fall in the price of a ticket. B. 43.48 percent rise

    asked on March 10, 2013
  10. math

    show 2 ways of using the distributive property to find the product of 125 times 32

    asked on January 18, 2013
  11. math

    A student says that a 98% angle has a complement Explain why this is incorrect?

    asked on March 14, 2012
  12. Chemistry 11 grade -

    Hydrogen gas was collected in a gas-collecting bottle with a volume of 30.0 mL by water displacement on a day where the temperature was 24ºC and the barometric pressure was 98.125 kPa. The vapour pressure of water at 24ºC is 2.99 kPa. What would be the

    asked on April 15, 2015
  13. math help!

    f(x) is a quadratic function such that f(1) = 3 and f(5) = 3. Find the x coordinate of the vertex of the graph of f.

    asked on March 19, 2014
  14. economics

    1. If average movie attendance is 250 million when prices are $7 a ticket and 200 million when prices are $9 a ticket, the elasticity of demand for movie tickets is about: A. 0.0. B. 0.9. C. 1.1. D. 1.8.

    asked on March 10, 2013
  15. math

    Can anyone please help me with the following question: Prove by mathematical induction that 6^n + 4 is a multiple of 5, for nEN.

    asked on August 22, 2011
  16. Chemistry

    The gaseous product of a reaction is collected in a 25 L container at 27 degrees Celsius. The pressure in a container is 300 kPa and the gas has a mass of 96 g. What is the formula mass of the gas?

    asked on February 23, 2011
  17. Calc.

    Solve the initial value problem explicity: y'= 5xe^(-y), y(1)=1

    asked on February 2, 2011
  18. Calculus

    Solve the following initial value problem explicitly: y'= ye^-x , y(0)=1 How do you solve this problem? I'm really confused!

    asked on February 2, 2011
  19. Calculus

    Ba has a half-life of 283.2 hours. How long would it take for the 50 mg of Ba in a sample to decay to 1.0 mg?

    asked on February 2, 2011
  20. Pre-Algebra

    help me calculate this - my 6th grade nephew has this question for homework and I'm at a loss. The combined age of 2 people is 91. Person A is two times as old as Person B was when Person A was as old as Person B is now.

    asked on October 1, 2007
  21. Climate Change

    In a Business 'As usual senario,' global CO2 emissions reach 64 GtCO2 y -1 by 2050. Convert this figure to GtC y-1, and calculate the percentage increase from the level of global CO2 emissions in 2004, estimated as 8.8 GtC y-1. Lets see... carbon is what

    asked on June 13, 2007
  22. Math

    In the simplest fraction, what part of 4 yd cubed is 3 ft cubed?

    asked on March 20, 2019
  23. Algebra

    If Anne’s age is represented by the variable a then express Jenny’s age in terms of a if Jenny is three years less than half of Anne’s age

    asked on February 25, 2018
  24. Math

    Sandy is buying t-shirts for her school's club. Company A charges 5.80 per shirt with no set up fee. Company B charges 5.75 per shirt plus a $35 set up fee

    asked on December 11, 2014
  25. Math

    The temperature increased 56 in 4 hours , what was the change in temperature per hour

    asked on December 11, 2014
  26. Math

    Malik is 10 years less than half his mothers age. I Malik is 12 years old, how old is his mother

    asked on December 11, 2014
  27. science

    What are psychoanalytical models? How have these models been used to explain human behavior? Which model do you feel is the most effective in explaining human behavior? Why?

    asked on April 17, 2014
  28. psy/310

    What are psychoanalytical models? How have these models been used to explain human behavior? Which model do you feel is the most effective in explaining human behavior? Why?

    asked on April 16, 2014
  29. math

    Katepoured 8 ounces of juice of a 64 ounce bottle Brian poor 60 ounces of juice from a 128 ounces bottle what ratio of juice is missing from each bottle of the ratios proportional

    asked on January 29, 2014
  30. Math

    Find the perimeter of KRN if K(2,9), R(-5,3), and N(0,-7). round to the nearest tenth.

    asked on August 27, 2013
  31. math

    There are 10 cups of punch left in the punch bowl. Each glass holds 2/3 of a cup.how many glasses can you fill?

    asked on December 13, 2012
  32. wilson school

    the flag that nico waves has an odd number in the one place and an even number in the tens place

    asked on November 26, 2012
  33. Math

    if $15,000 is invested at 6%, compounded quarterly, how long will it be before it grows to $25,000?

    asked on June 28, 2012
  34. information literacy

    Which of the following sets of Library of Congress call numbers is in the correct order? A. PA 203 .B252 1971, P201 .A251 1977, PE205 .C253 1954, PH202 .H255 1965 B. P201 .A251 1977, PA 203 .B252 1971, PE205 .C253 1954, PH202 .H255 1965 C. PE205 .C253

    asked on June 22, 2012
  35. information literacy

    3. Which of the following sets of Library of Congress call numbers is in the correct order? A. E88 G62 L166 1995, E88 G62 L45, E88 G62 D225, E88 G2512 S57 1998 B. E88 G2512 S57 1998, E88 G62 D225, E88 G62 L45, E88 G62 L166 1995 C. E88 G2512 S57 1998, E88

    asked on June 21, 2012
  36. chemistry - science

    calculate molarity of NaOHin the solution prepared by dissolving its 4g in enough water to form 250ml of this solution ?

    asked on February 17, 2012
  37. high school

    (x^2y^3/2z)^4

    asked on September 11, 2011
  38. geometry

    Ab=5 what's the reason ? Ch 2.6 segment proofs

    asked on September 8, 2011
  39. Math

    Iam re-posting the following questions and would appreciate if anyone could show the working. 1]Find lim sinx/2x x-->0 2]lim 3x^2-4x/7 x-->0

    asked on August 22, 2011
  40. Math

    Please help me with the two given questions. 1] find lim 3x^2-4x/7 x-->0 2] lim sinx/2x x-->0

    asked on August 22, 2011
  41. life orientation

    in 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community

    asked on April 18, 2011
  42. French

    How would you say Ash Wednesday and Easter in French? My French teacher said it today, but I just can't recall what it was now...

    asked on March 9, 2011
  43. physics

    A system of pulleys is used to lift an elevator carrying a 3,300 newton load. assuming the pulley system is friction free, approximately how far would 10,000 joules of energy lift the elevator?

    asked on February 22, 2011
  44. Physics

    A braking system is used to prevent the car travelling faster than 27 m s–1.The car and passengers shown in the diagram have a total mass of 750 kg. The length of track from P to Q is 80 m. Calculate the average braking force that would be required if

    asked on February 16, 2011
  45. Physics

    The work done against a force F(r) in moving an object from r = r1 to r = r2 is integral F(r) dr limits R2 at top and r1 at bottom. The gravitational attraction between two masses m1 and m2 at distance d is given be F=GMM/d2, G = 6.67 x 10-11. Find the

    asked on January 12, 2011
  46. Mathematics

    You can either do your own yard work or you can pay someone to do it for you. You find that it takes you about 50 minutes to clip, mow, and otherwise clean up your yard each time you do it. You do it four times each month. Also, once a month you need to

    asked on September 7, 2010
  47. Math

    Time and money are always significant. Look at this scenario. You can either do your own yard work or you can pay someone to do it for you. You find that it takes you about 50 minutes to clip, mow, and otherwise clean up your yard each time you do it. You

    asked on September 7, 2010
  48. math

    what is the maximum possible nuber of intersection beetween an equalateral triangl and a circle in the same plne?

    asked on May 7, 2009
  49. ecology

    true or false, the temp. varies greatly throughout the year in a tropical rain forest?

    asked on October 29, 2008
  50. ecology

    true or false, the temp. varies greatly throughout the year in a tropical rain forest?

    asked on October 29, 2008
  51. biology

    What phrase does the polypeptide spell? There appears to be some letters missing from the phrase

    asked on October 29, 2008
  52. 11 grade world history

    what leisure activities flourished at the turnof the 20th century

    asked on October 19, 2008
  53. English- Debating

    We have a debate about "That if we buy New Zealand made, we've got it made". we are negating this topic but don't know what to talk about. please help !! thanks

    asked on April 28, 2008
  54. Chem Help!

    I really need help for my homework on balancing equations please show all the work including the coeffients if needed. I need help with 3 questions, 1) NaN3 -> Na + N2 2) NO2 + O2 -> NO + 03 3) LiOH + CO2 -> Li2CO3 + H2O

    asked on March 15, 2008
  55. English

    Dangling Modifiers

    asked on May 2, 2007
  1. math

    i need help on homework

    posted on November 16, 2018
  2. Math

    Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amount of change she should receive?

    posted on August 31, 2017
  3. social studies

    The answer is c. 20 percent

    posted on March 8, 2016
  4. Math

    Yeah it does

    posted on December 11, 2014
  5. Math

    Yes I do I don't get it

    posted on December 11, 2014
  6. Physics

    A ball is thrown horizontally fron the roof of a building 7.5 tall and lands 9.5m from the base. What was the balls initial speed?

    posted on November 24, 2014
  7. math help!

    help ASAP PLEASEE!

    posted on March 19, 2014
  8. chemistry

    ¹14 is 1.42e9, 2.36e-10 ¹15 is 7.23e-11, 2.48e-11 ¹16 is 6.89 ¹20 is structure A, decrease, increase Zm is wrong ¹29 is branched structure, branched structure, Linear, because the branches can become more entangled than the linear chain.

    posted on December 22, 2013
  9. chemistry

    9a is LiF

    posted on December 22, 2013
  10. Chemistry

    V1/T1=V2/T2 75+273.15=348.15 -25+273.15=248.15 822/348.15=v2/248.15=586 No, it is not correct because your final answer cannot be a negative answer. :)

    posted on May 19, 2013
  11. economics

    yes

    posted on March 10, 2013
  12. Biology

    population

    posted on March 6, 2013
  13. Math

    Thank you- drwls!!!

    posted on August 22, 2011
  14. Health Project Ideas

    do it on phobias..its unique

    posted on November 29, 2010
  15. English

    Why is mr krabs caring about money than caring about the children?

    posted on January 27, 2010
  16. Algebra 2

    I have the same question. For what value is this equation undefined? and Do the answers to sections a-d match your expectations? why or why not? I'm confused on how to answer this. Please help anyone! Thank you!

    posted on January 25, 2010
  17. Science

    Make a hypothesis about how spacecraft that travel throughthe solar system obtain the energythey need to operate?

    posted on November 8, 2008
  18. social studies

    the egyptians stuffed the nostrils with beeswax durig the mummification process

    posted on January 30, 2008