Questions Asked on
June 10, 2008

  1. trig

    Because of prevailing winds, a tree grew so that it was leaning 4 degrees from the vertical. At a point, 35 meters from the tree, the angle of elevation to the top of the tree is 23 degrees. Find the height h of the tree

    asked by Keith
  2. Math

    name the 2 digit multiple of 8 who digits add up to 10

    asked by Kelly
  3. chemistry

    What is the maximum number of grams of PH3 that can be formed when 6.2 grams of phosphorus reacts with 4.0 grams of hydrogen to form PH3? P4+6H2-->4PH3. how do i do this question

    asked by Miley
  4. chemistry

    Identify the limiting reagent and the volume of product formed with 11L CS2 reacts with 18L O2 to prduce CO2 gas and SO2 gas. CS2+3O2-->CO2+2SO2

    asked by Miley
  5. chemistry

    Hydrogen gas is produced when zinc reacts with hydrochloric acid. if the actual yeild of this reaction is 85%, how many grams of zinc are needed to produce 112L of H2 at STP?

    asked by Miley
  6. Marketing

    What is the decision facing Amazon

    asked by China
  7. English

    I just had an English exam, and I don't think I do too well. Anyways, there was a few questions in it that I didn't quite understand in the prose questions (comprehensions or whatever they're called). After reading the passage, there was a question asking

    asked by TP
  8. English

    You are going to take a quiz. I'll distribute exam papers. You should write down the answers. Fill in the blanks with suitable expressions. Take one and pass the others to the other students. First write down your number and name on the top of the paper.

    asked by John
  9. Physics

    2) A single slit diffraction pattern is created using light of wavelength 700nm and a slit which is 0.020mm wide. a) What is the angular width of the central diffraction bright region? b) How wide is the central bright region observed on a screen located

    asked by Alex
  10. algebra

    1. The lenght of rectangle is greater than its breadth by 2 cm.If the length is increased by 4 cm and the breadth decreased by 3 cm ,the area remains th same . Find length and breadth of the rectangle ?

    asked by sally
  11. Physics again.

    In the study of a double slit diffraction pattern it is noted that the 5th double slit nodal line corresponds exactly with the 1st nodal line of the overlapping single slit pattern. The double slits used are 0.25mm apart. What is the width of each single

    asked by Alex
  12. english

    This is my conclusion to my essay titled "dress codes in schools". Any corrections or suggestions please? Conclusion We, as parents expect the learning environment to be safe for our children. How does that get accomplished when students are pushed to

    asked by Mel
  13. English

    Writing an expository essay on Healthful eating need help with subtopics?

    asked by Tamie
  14. Data management

    A coin was tossed 1000 times in an experiment to decide whether it really had an equal chance of coming up heads or tails. The decision was made in advance to declare the coind NOT FAIR if the observed outcome of the experiment had less than a 5% chance of

    asked by Jenna
  15. dog behavior

    please check my answer thanks for your help :) During extinction, an instrumenatl behavior may initially increase as the result of what ? A failure of the dog to obey the new instruction B. an extinction burst C. temorary defiance D. punishment resistance

    asked by Anne
  16. math


    asked by HEENA
  17. Statistics

    The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution. The mean number of passengers per cruise is 1,820 and the standard deviation is 120. a. What percent of the cruises will have

    asked by Monique
  18. algebra

    In 1990, a company had a profit of $1.3 million. In 1992, the company had a profit of $1.2 million. Write a linear equation giving the profit P, in millions of dollars, in terms of the year, t. Let t=0 represent 1990.

    asked by Kim
  19. english - revision

    What do the terms race and ethnicity mean to you? The term race defines what we are and where we come from. In essence, race is a classification between different groups of people; where each race looks different, speaks a different language and has

    asked by rose -Ms. Sue
  20. accounting

    The Board of Aldermen of Finchville approved the appropriations budget for its General Fund for the year ending December 31 as shown below. General government.............................................. $ 600,000 Public

    asked by tamara
  21. finance

    Would each of the following increase, decrease, or have an in determinant effect on a firm’s breakeven point (unit sales)? a. An increase in the sales price with no change in unit costs. b. An increase in fixed costs accompanied by a decrease in variable

    asked by GARY
  22. english

    This is what I came up with as an introduction to my essay titled "dress codes in schools". could you please restructure it or tell me how to make it flow? Thanks Tuesday, April 20, 1999 the state of Colorado woke up to one of the largest, most violent

    asked by Mel
  23. chemistry

    what is the maximum amoutn of KCL that can dissolve in 200 gram of water? ( solubility of KCL is 34 grams/100 gram H2O at 20 celsius

    asked by Miley
  24. Calculus

    Can someone help me find the derivatives of these questions? For these can you only need to tell me the answer so i can see if i have the same thing. y=cos(-4x) y = sinx^2 y = xcosx I need help with these 6 please. y = xcos(1/x) y = (1+sinx)/(1-sin^(2)x) y

    asked by Sam
  25. social studies

    im working on a social studies weird ABC thing, but I can't find anything for U. please help

    asked by Andrew
  26. chem

    okay so i have the answers but i just wanted to see if i was correct Balance these equations..i need the correct answers 1.H2+CL2->HCL 2.Ag+2n->Zn2+Ag 3.Mn4+Cu+->Mn2+ +Cu2+

    asked by amie
  27. English

    1. Take one and pass the others to the other students. 2. Take one and give the others to yourmembers in the group. 3. Take one exam paper and hand the others to your members 4. Take one and pass the others around. 5. Take one and pass the rest to the

    asked by John
  28. English

    It's time to do the group activity. I'll let you know how to do the activity. Leader, I will give you pictures. You should put the pictures face down on the table. Do not let your members see the pictures. You should pick up a picture and show the picture

    asked by John
  29. maths

    1. In language school , 475/12 %of the students learn chinese ,125/4 % of the student learn German and the remaining 210 student learn Japanese . What is the total number of student ?

    asked by sally
  30. math

    which inequality is true if x=3.04/1.48, y = 1.99+0.33, and z = (1.3)^3? answer is either: y

    asked by alicia
  31. Physics - Please Help!

    I really need help on these questions because I have a test tomorrow and don't understand how to do them. 1) A wire of diameter 0.6mm is placed in the path of light coming from a laser. Light diffracts around both sides of the wire; the diffracted waves

    asked by Alex
  32. Public Health

    Can you help me with these questions and explain why the answers are chosen. I think I have the answers but not quite sure how to write why I chose those answers. Different measures of disease are useful to evaluate and assess public health programs and

    asked by Donna
  33. space

    what causes a day, month and a year

    asked by fuller
  34. dog behavior

    please check my naswer for me thanks for your help :) True or False Ivan Pavlov is credited with the systematic study of conditioned reflexive behavior I said True

    asked by Anne
  35. dog behavior

    please check my answer thanks for your help :) Which of the following is an example of an unconditioned response? A. begging behavior at meal time B barking to get attention C Salivatig when food is taken ito the dog 's mouth D salavating when the dog

    asked by Anne
  36. chemistry

    what do coefficents represent in a balanced equation? What would removing air from a sealed container do to the container? What does it mean that "like dissolves like"? Dissolving a solute in a solvent does what to the solven'ts freezing and boiling

    asked by Miley
  37. physics

    15g iron (c=450 J/kg K) bolt is heated from 21 C to 312 C. It is then plunged into a 2kg of 15 C water (c= 4180 J/kg K) into a 4.6kg alum. tub (c=903 J/kg K) What is the final temp. (Tf) of the water and the tub? for some reason..., i got 0.472 C for final

    asked by jake
  38. econ

    The FCC is planning to auction wireless spectrum rights, with the goal of maximizing the revenue that it receives from the auction. These rights will almost certainly be used to support wireless communications devices, such as cell phones, pagers, etc. The

    asked by Tiffany
  39. science

    Hello, can u please tell me, how do I indicate from energy-level diagram whether the decomposition of a molecule will occur as gas or solid?

    asked by michael
  40. math-algebra

    sqrt27xy^3/sqrt9x I'm getting 3 answers to this. yxsqrt3y/x, ysqrt3xy/3x, and 3sqrt3y Can anyone please tell me which one is correct?

    asked by Lexi
  41. Algebra

    What similarities and differences do you see between functions and linear equations?

    asked by Anonymous
  42. social studies

    I need help with the middle ages.... 17. domestication of plants and animals (_ _ r _ _ _ _ _ _ _ e) 7. clan members doing different tasks based on their abilities and clan needs (_ _ _ _ s _ _ _ _ _ _ _ _ o _) 9. wrote the first collection of laws (_ _ _

    asked by Alex C
  43. Science

    How does the density and the elasticity of a medium affect the speed of a wave? PLEASE HELP!! :)

    asked by Bob
  44. health

    How did health insurance begin in the United States?

    asked by Martha
  45. health

    Describe how you could use ethical problem solving to work through a health care ethical dilemma

    asked by sephanie
  46. chemistry

    what is average kinetic energy?

    asked by Miley
  47. Grammar

    Read the following scenario: Your manager at work has advised you that you and two of your coworkers will be visiting a branch of your company in another country. Select a country that you would like to learn more about. Then, conduct an Internet or

    asked by shelia
  48. english

    The elderly man was a grandfather to seven youngsters and he never failed to spend time with them each and every weekend. It said to fix the comma splice or fused do u do that?

    asked by Jennifer
  49. math again!!!!!

    2x 4 12 (2-x) --- / ---- + ---- X --- (x^2-4) (x^2-4x+4) (x^2-4) 3

    asked by amy
  50. algebra 2

    is this a circle or an ellispe 4(x-2)^2 + 4(y-4)^2=36

    asked by Miley
  51. statistics

    n=16 M=46 Sum of Squares=6000 Make a 95% confidence interval estimate of the population mean. I got 35.345 TO 56.655

    asked by Lezlie
  52. math

    Simplify this equation and write your final answer in slope-intercept form. y-5=1/2(x-6)

    asked by eric
  53. biology

    The diversity of chemical reactions occurring in a cell depends mostly on molecules present in the cells called?

    asked by tanya
  54. eth-finalrevision

    What do the terms race and ethnicity mean to you? Race Race which is a concept can be defined as a group of people that have the same sets of characteristics. It is believed that, the most commonly used factors that determine race are skin color,

    asked by rose -Ms. Sue
  55. information

    Ms. Sue, Where can I get some reading material that will help me answer those two questions. What do the terms race and ethnicity mean to you? Why are these concepts important to United States society?

    asked by rose -Ms. Sue
  56. algebra 2

    smallest to largest : squareroot15 , -2.6, -8^2, 5/8, 2 3/4,4.1 , 3.14 is this the correct order: -2.6,5/8,2 3/4, 3.14,4.1,-8^2

    asked by Margie =]
  57. pre algebra

    How do you multiply binomials?

    asked by Lily
  58. Sociology

    What is cyberspace interaction? How does it differ from face-to-face interaction?

    asked by Mario
  59. pre-algebra

    Ok, so this is about absolute value function and I was wondering in this: y= 2|2| +1 would you multiply the 2s?

    asked by Lily
  60. organic chemistry

    what's the relative cost of petrochemicals to the materials they have replaced??

    asked by kel
  61. dog behavior

    please check my answer thank you for your help :) True or False Systematic desensitization can be used to reduce fear I said True

    asked by Anne
  62. Algebra

    Could someone help me with an example of an equation of a nonlinear function? I am not understanding this.

    asked by Anonymous
  63. social studies

    how did the south plan to win war.

    asked by miss 052997
  64. math

    express in simplest form: 2x 4 12 2-x ---- / ---- + ------ X ------- x^2-4 x^2-4x+4 x^2-4 3

    asked by amy
  65. math

    2x 4 12 2-x ---- / ----- + ---- X ------- x^2-4 x^2-4x+4 x^2-4 3 express in simplest form !

    asked by amy
  66. science

    When first looking at a slide under the microscope, you should use: Here are my choices: A. low power and fine adjustment B. high power and fine adjustment C. low power and coarse adjustment D. high power and coarse adjustment

    asked by Laura


    asked by RIYA
  68. Sociology

    Explain the principle of social constructions of reality. Give examples (national / international). Can anyone help where to start with this.

    asked by Mike
  69. social studies

    how does the geography influence the culture of an area?

    asked by anthony
  70. health

    Do you think nurses, nurses' assistants and emergency medical technicians have responsibilities that may be out of their traditional scope of practice? If so, what are the responsibilities?

    asked by Roselyn
  71. Algebra

    Explain why the line x = 4 is a vertical line.

    asked by Felicia
  72. Algebra


    asked by Felicia
  73. Algebra


    asked by Felicia
  74. Algebra II

    (-5^2) = -25 right ?

    asked by Margie =]
  75. French

    Good evening, could you check over these sentences to see it i have translated the english correctly INTO FRENCH. Merci!! Today, we study and research space, for things like our atmosphere, the sun, asteroids and comets, moons and everything that make up

    asked by Sabrina
  76. science

    In wavelength, what is the horizontal distance?

    asked by Lizzie
  77. Pre Algebra

    how do I simplify this?: x(x exponent2 + 2x + 4)

    asked by Lily
  78. e

    why is it important not to introduce new information in the conclusion of an essay?

    asked by Mel
  79. critical thinking

    The great french historian Jules Michelet (1798)-(1874)Sympathized with the french middle ages and with the Revolutionary epoch in france, yet he wrote his best work on the despotic french monarchy, which he despised.

    asked by Alisha
  80. Science

    Why can microwaves travel both through empty spaces and through air and food? PLEASE HELP!! :)

    asked by Bob
  81. biology

    I need help with these ones.... 1. Describe two things the farmer could do to increae the energy conversion effency in a cow? 2. What is the albedo of leaves?

    asked by sarah
  82. Critical Thinking

    Using any of the leadership styles, how would you solve the problem of student parking on campus (to make it more efficient)?

    asked by James
  83. Math

    how do i determine the equation for a line of best fit that i drew?

    asked by Cailie
  84. social studies

    More help with the middle ages... 10. what caused the end of feudalism? (_ _ a _ _ _ _ _ _ _ _) 18. group working and living together to meet their needs (Either 10 or 12 letters) 20. migrated from place to place in serch of food (h _ _ _ _ _ _ _ _ _ _ _ _

    asked by Alex C