Nadine

Most popular questions and responses by Nadine
  1. Chemistry

    Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10

    asked on April 10, 2011
  2. Math

    Players on Team; Tennis 2, Basketball 5 A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? My answer is 31 athletes. Is this right?

    asked on February 15, 2012
  3. Physics help?

    A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced

    asked on March 30, 2012
  4. math

    What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 *** 0.73 = n × 215 215 = 73n

    asked on February 1, 2016
  5. physics

    A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.43. Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the

    asked on September 19, 2013
  6. General chemistry

    What mass of electrons would be required to just neutralize the charge of 2.7 of protons?

    asked on October 14, 2010
  7. French Pen-Pal

    My French teacher is having us write to our fifth grade pen pals, and I sent my first letter a while ago with everyone else in the class. Well, my teacher waited for a while so all of the students would have a chance to respond in a letter of their own and

    asked on April 20, 2008
  8. Physics

    A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced

    asked on March 30, 2012
  9. Math

    How do I break this down to factor it? 2x^2+13xy+15y^2

    asked on October 7, 2008
  10. earth science

    Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox

    asked on November 8, 2009
  11. Chemistry

    can anyone help me with this question A solution is made by dissolving 0.078g of Ca(OH)2 in water to make 100ml of final solution. Calculate the pH of the solution im not sure about how to use the 100ml. thanks -nad You need the 100 ml to determine

    asked on June 11, 2007
  12. Statistics

    "Working Mom’s Journal" reported that the mean time a mother, with her small children, spends in at the convenience store is 7.3 minutes. A sample of 20 moms is chosen from your neighborhood, and it is found that the mean time they spend in a convenience

    asked on March 10, 2013
  13. Physics

    Part of a single rectangular loop of wire with dimensions .35 m by .75 m (.35 is the height and .75 is the length) is situated inside a region of uniform magnetic field of 0.395 T. The total resistance of the loop is 0.690 Ω. Calculate the force required

    asked on March 31, 2012
  14. word problem

    If 258 hamburgers and cheeseburgers were sold and the number of cheeseburgers sold was two times the amount of hambugerssold how many hamburgers were sold? Is this right? 258 divided by 2 =129

    asked on October 15, 2008
  15. Math

    Evan found a way to find the product of 36 x 15. 36 x 15 = ( 30 + 6 ) = ( 10 + 5 ) = 300 + 150 + 60 + 30 = 540 a. Does Evan's method work for finding 35 x 15? Explain. b. Use Evan's method to find ( 2 + n )(3 + 5). c. Use Evan's method to find ( n + 2)(a +

    asked on October 17, 2017
  16. science/math

    A juice processing operation uses steam to heat the fruit juice up to a temperature of 96̊C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39̊F to its heat treatment

    asked on February 6, 2012
  17. Math-Algebra

    Can someone please elucidate to me, how to do this enquiry. 2y=-6/5

    asked on June 3, 2010
  18. algebra

    The length of a rectangle is 1 inch greater than its width. If the dimensions are doubled, its area increases by 36 square inched. Which equation could be used to find its dimensions?

    asked on April 23, 2010
  19. Math

    In a survey of a TriDelta chapte with 54 member, 20 were taking mathematics, 35 were taking English, and 6 were taking both. How many were not taking either subject?

    asked on December 12, 2008
  20. Math

    Solve the following 2w^3 4c^3t^2 _____ - ________ 9c^3d^3 3b^2d^2

    asked on November 6, 2008
  21. Math

    m=y^2-y^1/x^2-x^1 solve for i1

    asked on October 12, 2008
  22. help

    could someone show me the steps for solving this: 3x+24=9(x+4)

    asked on October 8, 2008
  23. French

    I wrote this short pen pal letter, and I need someone to check it. It would really help me! Thanks Chère Megan, Je m'appelle Nadine at j'ai treize ans. Je suis ton correspondant! J'apprends le français depuis deux ans et je pense que c'est une langue

    asked on April 21, 2008
  24. PHYSICS QUESTION!!!!

    how do you find the height or time? is it h=squreroot4.9/t or h=squareroott/4.9 or is it something else complettly???

    asked on December 9, 2007
  25. algebra

    If the cost of a cell phone has decreased 400% during the last 10 years, does that correspond to a cost decrease of four times? Explain your answer.

    asked on September 11, 2012
  26. grammar

    Is it correct to say "I had a chat to my brother"? I normally use the word 'with' my brother.

    asked on April 3, 2012
  27. Math

    A box holds one layer of 45 baseballs. How can the baseballs be arranged?

    asked on February 27, 2012
  28. Math

    What is the difference between a likely event and an unlikely event?

    asked on November 29, 2011
  29. algebra

    what do you mean by (2x) in absolute value? I can't figure out what the x is all about...

    asked on January 21, 2010
  30. precalc

    how do u do evaluateL cos135

    asked on December 7, 2008
  31. Math

    Is this equation right is it worked correctly x 1 ----- - -------- x2-4 x2+4x+4 This is how she simplified it: x(x2+4x+4) - 1(x2-4) ------------------- (x2-4)(x2+4x+4) x3+4x2+4x-x2+4 ------------- x4+4x3-16x-16 x3+3x2+4x+4 ------------ x4+4x3-16x-16

    asked on October 24, 2008
  32. math help please!

    yx3 _____ How do I slimplfy y6x4

    asked on October 10, 2008
  33. Math

    solve for x 5x-3/4=2/3-7/2

    asked on October 10, 2008
  34. math

    How can a rectangle with be used to illustrate the multiplication of polynormals

    asked on October 8, 2008
  35. Math

    can you please help me solve this quadadratic equasionby factoring : x^2-8x+16 would this be the right way 8x^3+16 to start

    asked on October 8, 2008
  36. math

    how would I write 9557 in scienctific notation would it be like this: 9.557

    asked on October 8, 2008
  37. Math

    Base fee is 16.99 and a additionalcharge of .77each mile and he had to pay 133.26 how many miles did he drive the truck? Do I take the 16.99 from the 133.26 which is 116.27 then divide that by .77 which would be 15.1

    asked on October 7, 2008
  38. Science

    Why do the coolant in a car's radiator protects the engine from damage?

    asked on January 29, 2008
  39. science

    when current flows through a wrapped in coils around a bar magnet, a temporary magnet known as a _________________ is created. Did you omit a word? perpahs metal. For the blank, are you thinking of electromagnet?

    asked on January 17, 2007
  40. social studies

    what did they call the mummy shaped figure that worked in the afterlife's fields for the mummy? http://www.carlos.emory.edu/ODYSSEY/EGYPT/shabtis.html

    asked on November 29, 2006
  41. algebra

    Xpower2 -15+50=0

    asked on January 2, 2013
  42. math

    What terms is missing from this set of ordered pairs? (0, -2)(?, 0)(5,8)

    asked on January 1, 2011
  43. english

    need a thesis for the play trifles my title is We Got Your Back

    asked on December 1, 2010
  44. Calculus

    What is the orthogonal trajectory of y^2 - x^2 = C ??

    asked on December 14, 2009
  45. earth science

    Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox

    asked on November 8, 2009
  46. Math

    5k^2u^2 3z^2 ________ + ____ 12b^2d^2 4bk^3 How would I solve this?

    asked on October 27, 2008
  47. help

    7w/15x times 6wx/w How do I work this one

    asked on October 7, 2008
  48. Math

    write in scienctific notation: 0.003191

    asked on October 7, 2008
  49. Math

    Simplfy the following (x^2-9x+9)-(-2x+4)+(6x^2-7x-5) solution: x^2-0 -x+2+ thats as far as I got

    asked on October 7, 2008
  50. Math

    Put in simplest form withoiut parenthesis: (w-2)(w+1) Is this right w^2-2+1

    asked on October 7, 2008
  51. accounting

    Please computate retained earnings During 2009, Edgemont Corporation had revenues of $230,000 and expenses, including income taxes, of $190,000. On December 31, 2008, Edgemont had assets of $350,000,liabilities of $80,000, and capital stock of 210,000.

    asked on August 25, 2008
  52. English

    Could someone check my answers for this exercise. Dangling Modifiers

    asked on June 25, 2007
  53. microeconomics

    what is ment by allocative and productive efficency stuff

    asked on November 29, 2006
  1. College Chemistry

    you add the total grams of Fe+C+Cr which is Fe = 92.1 + C = 2.59 + Cr = 1.59 = 96.28 The question is asking for the % by mass of each component. you calculate each individual element . Fe gm of 92.1/96.28 (total gms) x100% = 95.7% You do the same for C and

    posted on May 24, 2019
  2. Math

    For A i think it works but i do not understand b,c, and d.

    posted on October 17, 2017
  3. Language Arts

    His opinion, is he feels like television is a waste of time. He feels like there are many things people can do besides laying around watching tv all the time.

    posted on November 9, 2016
  4. Physics

    1. 64.195

    posted on October 20, 2016
  5. 6th Grade Math

    The answer is 5. (5/8)*5=25/8=3.125 lbs More than enough to cover the additional 3 pounds her father needs.

    posted on October 11, 2016
  6. Statistics

    1. Find the area associated with this section of the curve: between z = -1.15 and z = -1.35.

    posted on October 21, 2013
  7. Information Systems in Organizations

    1 b 2 c 3 d 4 c 5 no

    posted on March 18, 2013
  8. Information Systems in Organizations

    1 b 2 c 3 d 4 c 5 yes

    posted on March 18, 2013
  9. Physics help?

    Thank you!

    posted on March 31, 2012
  10. Math

    9 x 5 5 x 9

    posted on February 27, 2012
  11. calculus

    If 7 and 4 are exponents, take the derivative. You should get x^6(x+1)^3(11x+7), setting the derivative equal to zero gives you 0, -1, and -7/11 as critical numbers. Test numbers in the intervals [-12,-1], [-1, -7/11], [-7/11,0] and [0,10]. If the first

    posted on April 10, 2011
  12. Corporate Finance

    I have the answer. contact me at candy2108atgmaildotcom

    posted on February 13, 2011
  13. Chemistry

    Convert 63.7 kg of oxygen to grams. Then use stoichiometry and convert the grams of Oxygen to moles of Oxygen, then moles of KNO3 using the equation. Calculations: 63.7 kg ---> 63,700 g. Divide by 32 grams of O2, then multiply by (4 moles KNO3/5 moles O2).

    posted on January 30, 2011
  14. college math 209

    25²+20x+4=0

    posted on January 25, 2011
  15. Business-Operations Management

    With effective resource planning organizations can reduce inventory and service costs, improve efficiencies, and establish methods for continuous improvement. Depending upon the type of resource there is a different type of planning that must take place.

    posted on November 8, 2010
  16. chemistry

    The evaporation procedure must be completed in 10-15 minutes right after isolating aspirin in the filtration step with alumina or the aspirin decomposes which will create more surface area on the molecule resulting a lower melting point and wider

    posted on September 26, 2010
  17. Math-Algebra

    Gracias!

    posted on June 3, 2010
  18. Finance

    If D0 = $2.00, g (which is constant) = 6%, and P0 = $40, what is the stock’s expected dividend yield for the coming year? a. 5.0% b. 5.1% c. 5.3% d. 5.6% e. 5.8%

    posted on January 16, 2010
  19. elementary

    the rule is to use numbers and you always have to read the question to do it.

    posted on September 10, 2009
  20. word problem

    so it would be193 cheeseburgers right

    posted on October 15, 2008
  21. math

    Thank you

    posted on October 8, 2008
  22. help

    Thank you very much I hope I can remember the foil method

    posted on October 8, 2008
  23. Math

    write 0.003191 in scientific notation

    posted on October 7, 2008
  24. Math

    Thank you

    posted on October 7, 2008
  25. French

    oops, I see a typo that I didn't notice. It should say et instead of at before mes frères.

    posted on April 21, 2008
  26. French Pen-Pal

    Wow, Thanks! Those are really good ideas!

    posted on April 20, 2008
  27. science

    Friction easy But then again the engine but that isnt a force

    posted on April 9, 2008
  28. math

    2(4x-4)+2(8x+10)=8x-8+16x+20 perimeter=24x+12

    posted on January 30, 2008
  29. math

    2^3 is 8 8*2 is 16

    posted on January 29, 2008