Questions Asked on
September 2, 2008

  1. biology

    What is the difference between Bacteria and Archaea?

    asked by Juli
  2. Physics

    A bag is dropped from a hovering helicopter. The bag has fallen for 2.0 s. What is the bag's velocity? How far has it fallen?

    asked by James
  3. 11th grade (World History)

    Which ruin is about 140 miles southwest from Copan?

    asked by Travis
  4. physics

    a roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. It then travels 135 ft at an angle of 40 degrees downward. what is its displacement from its starting point? im not really sure what to do,

    asked by laura
  5. Calculus

    A box of fixed volume V has a square base with length x. Write a formula for the height, h, of the box in terms of x and V. Sketch a graph of h versus x. Is the answer h=V/x^2

    asked by George
  6. writing

    word puzzle about labor day. wondeful workers. we have most of the answer we have United states and what

    asked by tori
  7. Calculus I

    Problem: A hot air balloon rising straight up from a level field is tracked by a range finder located 500 feet from the point of liftoff. Express the balloon’s height as a function of the angle the line from the range finder to the balloon makes with the

    asked by Mercury30
  8. Math

    How can you classify the 2 examples that you gave in part c? Is it: Simple random sample Systematic random sample Voluntary response sample Convenience sample Or Stratified random sample? Thank you.

    asked by Happyface
  9. Physics

    A tennis ball is thrown straight up with an initial speed of 20.0 m/s. It is caught at the same distance above the ground. How high does the ball rise (m), and how long does the ball stay in the air (s)?

    asked by James
  10. Criminal justice

    Restorative justice may be the model that best serves alternative sanctions. How can this essentially humanistic approach be sold to the general public that now supports more punitive sanctions? For example, would it be reasonable to expect that using

    asked by Bobby
  11. No subject

    I've noticed in the people around me these defense mechanisms. Denial, Identification, Regression, Intellectualization, Sublimation, and Displacement.The above is what i have answered for the following question.what defense mechanisms have you noticed in

    asked by dawn
  12. science

    from sea level, the biosphere goes up about 9 km and down about 19 km. what is the thickness of the biosphere in meters?

    asked by katie
  13. Ethnic Diversity

    According to current (within the past two years) research and news reports, what are some of the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society?

    asked by Anonymous
  14. Chemistry

    Two hydrides A and B of an element X contain 17.76% and 12.58% by mass of hydrogen. Identify A and B and comment on their structures.

    asked by Alice
  15. Chemistry

    Convert 10.3 g x cm3/second2 to kg x m3/hour2

    asked by Ashley
  16. Calculus/Trigonometry

    A box of fixed volume V has a square base with length x. Write a formula for the height, h, of the box in terms of x and V. Sketch a graph of h versus x. Is the answer h=V/x^2

    asked by George
  17. Chemistry-Question 3

    A 4.86 kg sample of a solution of the solute chloroform in the solvent (C2H5)2O that has a concentration of 1.91 pph by mass chloroform is available. Calculate the amount (g) of CHCl3 that is present in the sample. Molar Mass (g/mol) CHCl3 119.38 (C2H5)2O

    asked by Scott
  18. math

    A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

    asked by kayla
  19. English

    Why don't you try a little harder? Why not try a little harder? Why don't we try a little harder? Let's try a little harder. Let's try a little harder, shall we? Shall we try a little harder? How about trying a little harder? What about trying a little

    asked by John
  20. biology

    What are the differences between Archea and Bacteria?

    asked by Juli
  21. Math

    What are the like terms in the exprression 3ac = ab - ac = 2ab? Explain. Simplify the expression. Show your work.

    asked by Maddy
  22. Biology

    What are the steps and how many in the scientific method?

    asked by Harry
  23. kayla

    A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

    asked by math
  24. Physics

    Suppose an astronaut drops a feather from 1.3 m above the surface of the Moon. If the acceleration due to gravity on the Moon is 1.62 m/s2 downward, how long does it take the feather to hit the Moon's surface?

    asked by James
  25. 9th grade algebra

    i'm trying to find someone that knows what a diamond problem in algebra is. it is a diamond shape divided into 4 equal parts in the example it has an xy at the top an x on the left and a y on the right and x+y on the bottom. then on problem #1 it has a 15

    asked by ryan
  26. Algebra I

    My substitute teacher gaves us a worksheet that asks us to do problems we've never had before. How do I do unions and intersections on a number line using inequalities? Is there a formula for this? Example: A intersects C A={x|x>-3} C={x|x greater than or

    asked by Brittani
  27. Algebra......Help Quick!!

    12a^3bc-18a^2bc^2+6a^2c, x^2+20x+36, 12x^4-8x^3-4x^2, x^2+36x, 9x^2+6x+1, 6x^3+11x-10, x^2+3x-6..............can someone please help me solve some of these problems if not all. I have forgotten how to solve them can someone please help..Thanks

    asked by Carrie
  28. algebra

    simplify the sum of radical expressions: T^2 square root 96tw^2 + 9w square root 6 T^5 Simplify: square root 5w^2 T^7 x square root 20 w^3 T^6

    asked by nicky
  29. economic

    ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of electricity per year), and P is market price of electricity per unit. The production of

    asked by qweiop90
  30. math

    What units in the metric system would you use to measure each of the following quantities? (a) Distance from Los Angels to New York (b) Your waist measurement (c) Width of a hair (d) Your height

    asked by Peggie
  31. Chemistry

    A solution of hexane in the solvent (CH3)2CO has a mole fraction of CH3(CH2)4CH3 of 0.114. What mass (g) of the solution must be taken if 1690 g of hexane is needed? Molar Mass (g/mol) CH3(CH2)4CH3 100.21 (CH3)2CO 58.05 Density (kg/L): CH3(CH2)4CH3 0.6838

    asked by Scott
  32. Chemistry-Question 4

    What mass (g) of the solute C3H8O3 should be mixed with 8270 mL of the solvent H2O to produce a solution that is 1.02 m glycerol. Molar Mass (g/mol) C3H8O3 92.09 H2O 18.015 Density (kg/L): C3H8O3 1.261 H2O 0.9982 Name/Formula: glycerol C3H8O3 water H2O

    asked by Scott
  33. Pre-Calculus-check answers

    Express 5-2i in polar form. Express your answer in radians to the nearest hundreth. r=sqrt5^2+-2i^2 which equals sqrt21.Arctan of -2/5+pi equals -18.7 Polar form=sqrt21 cis -18.7 Is this correct??

    asked by Lucy
  34. Pre-Calculus

    The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

    asked by Lucy
  35. Math

    Suppose M is between L and N. Use the Segment Addition Postulate to solve for the variable. Then fine the lenghts of LM, MN, and LN. LM=7y+9 MN=3y+4 LN=143 Please tell me how you got your answers.

    asked by Jennifer
  36. Physics

    You throw a ball downward from a window at a speed of 1.8 m/s. How fast will it be moving when it hits the sidewalk 2.8 m below?

    asked by James
  37. Algebra

    Solve for x and y: 2x + y = 1 x - y = 8 PLEASE HELP. and show work.(:

    asked by emily
  38. algebra


    asked by Josh
  39. 5th grade

    why must a scientist estimate a measurement?

    asked by Jiovanni
  40. math

    a framer divides his herd of cows anong his 4 sons, one get 1/2, second get 1/4, 3rd gets 1/5 and the 4th get 7. how many cows are in the herd?

    asked by lily
  41. literature

    what is the meaning of the title of Robert Cormier's "Tunes for Bears to Dance to?"

    asked by ell
  42. math

    How many different 6 digit numbers can be formed using the digits 1,2,3,4,5,6 given that no digit is repeated in a number?

    asked by Clint
  43. algebra

    1/2x+6=1/3x Please help. my college grad mom can't help with my 8th grade math!

    asked by Josh
  44. Economic - Cost and benefit analysis

    i am not a spoon feeder, i just don't have any idea about these messy questions. ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of

    asked by zhuie
  45. Medical transcription HIPAA research project

    I have never done a research project and I don't understand how to do the reference page or the work cited for internet sources. Can you help? For example, I went to US Deparment of Health and Human Services Protecting the Privacy of Patients Health

    asked by Cindy Dietrich
  46. college

    The annual rainfall in California’s north valley averages twenty-three inches. So the rainfall next year will be twenty-three inches

    asked by tiff
  47. Economics~~URGENT!!!

    i am not a spoon feeder, i just don't have any idea about these messy questions. ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of

    asked by zhuie
  48. 9th grade

    whatis 1=1

    asked by manisha
  49. Math

    Mascot: Number: Bisons 17 Cougars 4 Huskies 18 Knights 32 Other 3 a. About how many students would vote for the Huskies if the entire student body of 1600 voted? About how many would vote for the Knights? b. Suppose the students surveyed were in the

    asked by Happyface
  50. College Accounting

    Is there anyone that can help me with Chapter 2 problem 2-3a. I really need help with the effects of transactions(balance sheet accounts)

    asked by Lady J
  51. Economics

    How can the Internet be considered a product and a promoter of free enterprise (besides pop-ups)?

    asked by Mandy
  52. Spanish

    I need to do a report on the Spanish Civil War, and I need to provide visuals to go along with it like maps, flags or miniatures. I've looked at several sites and they show different map, even for the Nationalist and Republican. Does anyone know any good

    asked by Sue
  53. algebra II

    multiplication of polynomials by polynomials. 2^n-3 b^2n-2 (b^2-2^5-n b) I get 2^n-3 b^2n - 4^2 b^2n-1 but that is not right. I am stuck on the -4^2 part only. The rest is right.

    asked by mike
  54. eXpOnEnT mAtH

    write each product as the product of the same factor: 1.)5 Ex:3 2.)a Ex:5 3.)(-j) Ex:2

    asked by LEMISCE
  55. math

    Gasoline accounts for 85% of the motor fuel consumed in the united states every day. If 8,882 thousand barrel (bbl) of motor fuel is consumed each da, how much gasoline is consumed each day in the united states? round to the nearest barrel.

    asked by Peggie
  56. English

    Bingo Game Let's play the bingo game. There are six expressions on the right of the bingo board. You should write down each expression in the box on the bingo board at random. After that I will read English sentences one by one. You have to draw a circle

    asked by John
  57. math

    Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary?

    asked by Peggie
  58. chemistry

    I have problems with this question. Can anybody help me? When dilute nitric acid was added to a solution of one of the following chemicals, a gas was evolved. This gas turned a drop of limewater. Ca(OH)2, cloudy,due to the formation of a white precipitate.

    asked by El
  59. College Algebra

    Do variables with exponents in algebraic terms need to be alphabetical?

    asked by Kristine
  60. Economics

    How is the Internet a promoter of free enterprise? I came up with pop-ups but I can't think of another example.

    asked by Mandy
  61. science

    What is the difference between a theory in everyday use and a scientific Theory?

    asked by Mahtab
  62. making dot arrays

    to make a 14-dot array that has exactly two rows, is this going to have a total of 14 dots or will it be 14 dots per row

    asked by annabelle
  63. Chemistry

    How do atoms bond to form molecules?

    asked by Lilly
  64. biology

    what is the primary focus of all biological studies?

    asked by dontworryaboutit
  65. Science

    why is it unlikely that some of the tectonic plates will stop moving

    asked by Letha
  66. math

    I'm having problems with subtracting 10 digit math problems.Can you give me any websites?

    asked by Nehemiah
  67. english

    what part of speech is about? what part of speech is (is)?

    asked by Kelsey
  68. Physics

    Determine the final velocity of a proton that has an initial velocity of 2.5*10^5 m/s, and then is accelerated uniformly in an electric field at the rate of -1.10*10^12 m/s^2 for 1.90*10^-7 s.

    asked by James
  69. math

    two US coins that total 55 cents in value? one is not a nickel.

    asked by chellie
  70. Algebra

    I need help with using the quadratic formula to solve this equation: 2^x2-2x = 8

    asked by Alexander
  71. Science

    Homer Notices that his shower is covered in a strange green slime. His friend, Barney, tells him that coconut juice will get rid of the green slime. Homer decides to check this out by spraying half of the shower with coconut juice, and half with water.

    asked by Summer
  72. world history

    what feature makes up part of the US border with canada

    asked by allexus
  73. 8th grade

    unscramble the work riday it is a literature word

    asked by Joe
  74. government

    What do ew call achange to the constitution?

    asked by Derke Bates
  75. Science

    I have more than one hundred legs. I cannot stand. I have a very long neck. I do not have a head. I cannot see but I am as neat and tidy as can be. What am I?

    asked by Christian
  76. Grammar

    what is a nominative pronoun?

    asked by Molly
  77. math

    solve for x 3x^2 + 2x - 5 = 0 you foil it and get: (x - 1)(3x + 5) but i don't know what to do from here. please please pleasee help.

    asked by sarah
  78. Calculus

    If you can helpme on this problem you are GOD. If f(x) = ax^2 + bx + c, what can you say about the values of a, b, and c if: (A) (1,1) is on the graph of f(x)? (B) (1,1) is the vertex of the graph of f(x)?[Hint: The axis of symmetry is x = -b/(2a).] (c)The

    asked by George
  79. science

    why would a scientist need to identify and control variables in an experiment?

    asked by Jiovanni
  80. science

    Why might a scientist estimate a measurement?

    asked by Jiovanni
  81. english

    what is the topic, audience,purpose,and format of this mini-prompts. Write a letter to Mrs. Arrington discussing why students attendance is poor.

    asked by maran
  82. Math

    I need help solving this problem. x - 3 > 8

    asked by jay jay
  83. Math

    3y - 2 > 12 - 5y

    asked by jay jay
  84. math

    Wendy is a loan officer and has 1,000,000 to lend and is required to get an average return of 18% per year. If she can lend at the rate of 19% or at the rate of 16%, how much can she lend at 16% rate and still meet the requirement?

    asked by leila
  85. Math

    place value what is standard form and what is expanded form

    asked by TaTi
  86. Economics

    How can the Internet be considered a product?

    asked by Mandy
  87. social studies

    My stupid teacher says since there is seperation from church and state the president can be sword on diffrent books not including religon.He wants examples of 5 other books that may be used but i can only find people using the bible and for other political

    asked by julian
  88. accounting

    Can anyone help me with this, why doesn't managerial accounting require independent audits to verify the accuracy of the generated reports used in the management decision making process?

    asked by Anonymous
  89. 12th grade

    how do you solve limits that have infinities!?

    asked by Megan
  90. Hum 130

    Is indigenous religion still practiced in Japen today?

    asked by Cheryl
  91. math

    The minimum daily value (MDV)for certain foods are given. They are based on a 2,000 per day diet. Find decimal and fractional notation for the percent notation in each sentence. (a) 1 ounce of tostitos provides 9% of the MDV of fat. (c) 1/2 cup of

    asked by Peggie
  92. social studies

    what features border the u.s with canada

    asked by morris
  93. spanish

    saquen unahojade papel. What does this mean?

    asked by Glen
  94. Algebra II

    Tell whether or not the following sets are fields under the operations + and *. If the set is not a field, tell which one(s) of the Field Axioms do not apply: a) [rational numbers] b) [integers] c) [positive number] d) non-negative numbers] That is a

    asked by Sherry
  95. American Dream Project

    so in social studies we have to do an american dream project witha poster and a speech and also we have to pick a song that goes with our board/ the american dream. I picked "Life is a Highway" by Rascal Flatts (sp?) We have to explain how it goes with the

    asked by Micheal
  96. physical geography

    what are the five most important paralells of the earth?

    asked by Anonymous
  97. math

    The minimum daily value (MDV) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractiona notation for the percent notation. 1/2 cup of campbells' new england clam chowder provider 6% of the MDV of iron

    asked by Peggie
  98. grammar

    I need help identifying each words part of speech on 2 sentences: Growing along with your family Built to last forever Please help

    asked by Bree
  99. english

    what is the simple subject to this sentence Does the map show this PLace?

    asked by Anonymous
  100. math

    Ms. Jordan has been given a loan of $2,500 for 1 year. If the interest charged is $275, what is the interest rate on the loan?

    asked by Peggie
  101. Science

    Why are the planets visible enough even though they are not light sources?

    asked by Ann
  102. Brookwood

    A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is

    asked by Anna
  103. math

    Yi chen made a $6,400 investment at the beginning of a year. By the end of the year the value of the investment had decreased by 8.2% What was ts value at the end of the year?

    asked by Peggie
  104. Physics

    A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is

    asked by Jaime
  105. Physics

    At a time when mining asteroids has become feasible, astronauts have connected a line between their 3400 kg space tug and a 6000 kg asteroid. Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are

    asked by Lisa
  106. significant figures

    (42.70 + 0.259) / 28.4 I wanted to know, if it 1.510 or 1.51? because it has to be correct sig figs.

    asked by soojung
  107. math

    the trip will be 560 miles the bus travels at a average speed of 60 miles per hour

    asked by hjfgjff
  108. chron puzzle

    Help me unscramble this word (partisened) why the play didn't run long????

    asked by vero
  109. math

    equation of a line in slope intercept for that passes through (4,3) and (7,-2)

    asked by lee
  110. spanish

    what does this question mean im really confused. directions - translate the adjective and write the correct form. 1. un apartmento (small) 2. las mujeres (brown haired) 3. los hombres (tall) 4. la senora (pretty) 5. las clases (easy) can someone explain

    asked by christina
  111. calculus

    Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS

    asked by Mike
  112. Sci

    What would happen if our pH levels increased?

    asked by Lena
  113. Chemistry

    What volume (mL) of the solvent benzene should be added to 142 mL of the solute CH3CN to generate a solution that is 2.68% by mass CH3CN?

    asked by Scott
  114. Linear Relationships

    Use the Distributive Property to write two expressions, that show two different ways to compute the area of each rectangle. a. 6,4:14 b. 3:5,5

    asked by Alexis
  115. English

    Let's make plans for next month. Let's make a plan for next month. Let's make two plans for next month. --------------------------- What is the difference among them? Does a plan mean one plan?

    asked by John
  116. health

    a teenage girl has some shaking in her fingers often, and she has been a little constipated all week. Her skin is little rough and flaky. From these observations, does she have parkinson's disease? explain your answer. I'm not exactly sure, but i think the

    asked by Brenda
  117. Math

    Hello, I need to know if I have the right answers to these questions. 2x-y=3 question is which of the following points lie on the line. is the answer 0,3 (-1,1) (2, 1) (-3, 1) (-3, ) or (1, 2) I chose the answer (-3, 1) is that right, second question: If

    asked by bodes
  118. Math

    Number sense: Cari says the value of the digit 3 in 34,465 is 300,000. Do you agree or disagree? Explain.

    asked by Elezabeth
  119. History

    In 1935 during the great depression why couldn't a person living in new york city be buried west of the mississippi river?

    asked by John
  120. math

    P is a point on the x-axis 13 units from the point (-3,5). find all the possible coordinates for P.

    asked by bryant