1. chemistry

    Posted by Brunette on Sunday, October 14, 2012 at 10:42pm. Values of the rate constant for the decomposition of N2O5 at four different temperatures are as follows: T(K) k(s^-1) 658....2.14*10^5 673....3.23*10^5 688....4.81*10^5 703....7.03*10^5 The

    asked by Brun on October 15, 2012
  2. Government essay help

    I've written the essay but I had to use the quote and cite method rather than paraphrase and cite and I'm confused on how to cite my work. I got all of my information in chapter 9 section 1 of my textbook. You need to have the textbook cited in TWO places:

    asked by Jon on April 25, 2007
  3. Chemistry - Urgent Please help!!

    The problems: 0.0513 grams of Al (Wt. 27.0) was reacted with excess HCI to produce H2 according to the following balanced equation: 2 Al + 6 HCI ---> 2 AlCl3 + 3 H2 a) Determine the number of moles of H2 evolved from that quantity of Al when collected over

    asked by Kishwa on April 23, 2013
  4. calculus

    i'm not sure how to do this. can someone help, please? thanks! consider the function f(x0 = x^2 + 2x on the interval [-2, 2] a. draw a sketch of the graph of f(x). find the average rate of change on the interval [-2, 2] and sketch this secant line. b. find

    asked by zoe on November 27, 2011
  5. Chemistry

    A 1.0 mL volume of 0.010 M H2SO4 is added to a mixture of 6 drops of 0.010 M HIO3, 14 drops of deionized water, and 1 drop of starch solution. A color change in the reaction mixture occurred after 56 seconds. a. Assuming 20 drops per milliliter for all

    asked by Aly on February 2, 2016
  6. algebra

    please review the questions and table and check my answers. tank you tutors. table planets' orbital velocity planet orbital velocity (mi/s) mercury 29.74 venus 21.76 earth 18.5 mars 14.99 jupiter 8.12 saturn 6.02 uranus 4.23 solve. show your work. express

    asked by anon on September 24, 2015
  7. english

    i tried my best to coorrect this, but it still sounds wierd. the following paragraph is about the great gatsby, and how many celebrities relate to Gatsby.c can you please suggest ideas and help me make it sound more fluent. thanks!!! P Diddy, Bill Gates,

    asked by yesudas on September 1, 2011
  8. Composition

    Can you please check this for any grammatical errors? Thank you for your help. Having been out of school for 15 years, I seem to have forgotten the fundamentals of grammar. Taking Composition and Communication 155 has helped me gain a better understanding

    asked by Tori on June 3, 2011
  9. Calculus

    The prompt for all of these question is "consider the function f(x) = sin^2(x)". Part A: Write the first four terms of the Maclaurin series for f(x). I assumed this implied non-zero terms, so I found x^2-(1/3)x^4+(2/45)x^6-1/315(x^8). I am fairly confident

    asked by Amanda on June 2, 2017
  10. chemistry

    i already posted this question, but im still confused on it. Dinitrogentetraoxide partially decomposes according to the following equilibrium: N2O4 (g) -> 2NO2 (g) 2NO2 (g) Initial conc. 0.400 mol 0 mole (no reaction yet) Change -0.3945 mol + 2 x 0.3945

    asked by Jane on October 26, 2010
  11. Physics

    A crate full of artichokes rests on a ramp that is inclined 10.0° above the horizontal. Give the direction of the normal force and the friction force acting on the crate in each of these situations. (a) The crate is at rest. Normal Force : 1.perpendicular

    asked by Max on February 22, 2010
  12. Computer science

    I want to make my traffic lights run automatically without any user input. I have created this code so far but the images don't show up please help. My code: var lights=["red.jpg","redamber.jpg","green.jpg","amber.jpg"] var lightscentre= 0; var timer;

    asked by L on April 26, 2016
  13. Chemistry

    "Solid dinitrogen pentoxide is added to water." I got this as my answer: N2O5 + H20 -> 2HNO3. Do I need to break 2HNO3 apart since it's a strong acid? I thought it wouldn't since I thought it was a synthesis problem. I read online that this was the answer

    asked by Rachael on May 6, 2007
  14. Health questions

    We both asked these questions yesterday but we are both confused. 1.Giardiaqsis is a communicable illness transmitted: A. through direct and indirect contact with infected fecal material. (or) B. by touching the moist lining of the eyes and nose. 2. Lyme

    asked by Davonna and Dewey on April 16, 2007
  15. art plz help plz plz

    @ms sue 1. Through this collection, you can gain a better understanding of all of the following EXCEPT: A. the history and traditions of a group of people. B. the diversity of a group of people during a specific time period C. the aesthetic choices

    asked by dedsec on August 29, 2017
  16. English

    Roll the dice. If you get 3 on the face of the dice, move forward for 3 spaces. Roll the dice. If you have 3 on the face of the dice, move forward for 3 spaces. Roll the dice. If you get Number 3 on the face of the dice, move forward for 3 spaces. Roll the

    asked by John on March 20, 2009
  17. ALGEBRA 1

    still working on this and need additional help two houses are for sale on the same street. the second house has 1000 square feet less than twice the square feet of the first house. together the houses have 4400 square feet. what is the square footage of

    asked by DEBBIE on April 29, 2010
  18. Proofreading

    Hi, can someone please proofread this for me? Topic: Explain why dating is not an effective method for screening out future divorces especially those that take place early in marriage Dating is not an effective method for screening out future divorces

    asked by Bizzy on January 17, 2008
  19. Please check my Calculus

    1. Find all points of inflection: f(x)=1/12x^4-2x^2+15 A. (2, 0) B. (2, 0), (-2, 0) C. (0, 15) D. (2, 25/3), (-2, 25/3) E. none of these I got D. I found the second derivative and equaled it to 0 and solved for x. I plugged the x values in to get my

    asked by Anonymous on January 12, 2015
  20. Algebra 116 Help Please

    1) Your are planning to spend no less than $8000.00 and no more than $12,000 on your landscape project a) Write an inequality that demonstrates how much money you will be will to spend on the project B) Suppose you want to cover the backyard with the

    asked by Sydney on September 8, 2010
  21. Algebra 116

    1) Your are planning to spend no less than $8000.00 and no more than $12,000 on your landscape project a) Write an inequality that demonstrates how much money you will be will to spend on the project B) Suppose you want to cover the backyard with the

    asked by Sydney on September 7, 2010
  22. Geography

    Where on Earth? You're standing outside the airport terminal in Moscow on a cold winter night. Snow streams past the windows of the taxi as you ride to your hotel. Leaning back in the seat, you review the purpose of your trip. As director of operations for

    asked by y912f on April 27, 2010
  23. algebra 2 A

    Unit 5: Quadratic functions and equations. I need help with the Firework display portfolio?? Fireworks Display Portfolio ALGEBRA 2 A: QUADRATIC FUNCTIONS AND EQUATIONS Directions: You are part of a fireworks crew assembling a local fireworks display. There

    asked by Cody on October 28, 2015
  24. math

    The equation below can be used to model the approximate total revenue based on the number of cars sold at a local dealership. Revenue = 1,000 + 6,000p Which of the following is true? A. The slope is 6,000 and represents the cost of six cars. ***my

    asked by Nikki on September 12, 2016
  25. English

    Hey, i am not doing good in my English 102 class, my professor says i address my writing prompt in the wrong direction. So i was hoping if someone can help break down my writing prompt, and give me a direction to write my essay. Writing Prompt: The

    asked by Bakr on March 15, 2010
  26. math

    The Question is: The value of a new car depreciates at a rate of 12% per year. 1)Write an equation to represent the approximate value of a car purchased for $23 000. 2)Determine the value of the car two years after it is purchased. 3)Approximately how many

    asked by Daniel on April 7, 2013
  27. English

    Using mime, as in the example, let's play the "Guessing the TV Program" game. Look at the model dialogue. You can answer either 'Yes, I do.' or 'No, I don't' to the tag question 'You like music program, don't you?' Now, let's do the group activity. First,

    asked by John on May 29, 2008
  28. english

    Have you ever wanted to give up on something before you even started? That’s how Raja felt as he squinted up at the looming mountain crowned in clouds. Then he looked back at the group of boys behind him. “Are you all ready?” one of their leaders,

    asked by Anonymous on January 17, 2014
  29. Spanish

    anything wrong with these questions? like grammar? 1. ¿Quién encontró la ciudad de Salamanca? 2. ¿Quién empezó la revolución en Francia? 3. ¿Por qué es Salamanca popular con turistas? 4. ¿Quién son los arquitectos que crearon la catedral vieja?

    asked by William on October 27, 2006
  30. Grade 10 Math

    The Brooklyn Bridge in New York City is a suspension bridge that crosses the East River and connects Brooklyn to the island of Manhattan. If the origin is placed at the top of one of the cable suport towers, as shown, the shape of a cable that supports the

    asked by Vanessa on February 3, 2013
  31. physics

    One component of a magnetic field has a magnitude of 0.046 T and points along the +x axis, while the other component has a magnitude of 0.066 T and points along the -y axis. A particle carrying a charge of +7.50*10^-5 C is moving along the +z axis at a

    asked by Anna on February 26, 2007
  32. Physics

    Hellow I have questiones in physics, it's google translate so my be it's not so easy. But thanks for the help A weight with mass (m2) = 28 kg hanging from a rope. The rope runs over a frictionless pulley and attached to a box of mass m1 = 52 kg. The box is

    asked by Oddbjørn on December 12, 2010
  33. English Help Plz

    Ovid is a great artist; He used different objects to represent the idea of transformations. He used water, tree, earth and heaven as metamorphosis symbolism .But his stories seems to be fiction in the modern age. For example beautiful daughter of a river

    asked by sajid on September 9, 2010
  34. Language Arts ~CHECK MY ANSWERS~

    Read the following passage to answer #1 and #2. April 15, Miss Kinnian says I'm learning fast. She read some of the Progress Reports and she looked at me kind of funny. She says I'm a fine person and I'll show them all. I asked her why. She said never mind

    asked by Abby on February 20, 2014
  35. science

    Based on the reactivity series, decide whether the following reaction will occur. If you think there will be no reaction, write down why you think this. If you think a reaction will happen, write down why you think it will happen, and the word equation to

    asked by ishaan on June 27, 2011
  36. Math \ Algebra

    Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11),

    asked by Wendy on January 27, 2015
  37. Math

    Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11),

    asked by Wendy on January 27, 2015
  38. ap chem

    a solution is prepared by dissolving 4.87 g of sodium dichromate in 25.0 ml of water. (d=1.00g/mL).calculate a. the mass percent of sodium dichromate in the solution. b. the mass percent o water in the solution. c the mole fraction of sodium dichromate in

    asked by just on February 20, 2007
  39. algebra

    The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the

    asked by peg on February 21, 2011
  40. algebra

    The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the

    asked by bianca on February 22, 2011
  41. RE: phhysics

    Posted by Charlene on Friday, March 23, 2007 at 3:00am. picture in your mind a block that slides without friction down a ramp that is inclined at an angle (q) above the horizontal. Initially the block is at rest a distance (s) in meters (measured along the

    asked by Charlene on March 23, 2007
  42. chemistry

    Hi, I need help figuring out this question. An impure sample of barium hydroxide, Ba(OH)2 (aq), has a mass of 0.540 g. It is dissolved in water and then treated with excess sulfuric acid, H2SO4(aq). This results in the formation of a precipitate of barium

    asked by Hanna on April 27, 2019
  43. Science

    Here are the other sentences on the same theme I urgently need you to check. I hope you can help me. Thank you. 1) The existence of complex molecular structures present in every living system is used by Drexler to show the theoretical possibility of the

    asked by Frank on May 25, 2012
  44. Statistcal Analysis

    I need some help with figuring out the ratio-to-moving average. Can someone help me? Here's the problem: Sales of roof material, by quarter, since 1994 for Carolina Home Construction, Inc. are shown below (in $000): Quarter Year I II III IV 1994 210 180 60

    asked by Crystal on January 25, 2014
  45. chem

    What volume of a 0.2 N NaoH solution do you expect to use in order to titrate 25ml (sample out of 250ml) of a 0.200 N oxalic acid solution? heeeelp! Equation is H2C2O4 + 2NaOH==> 2H2O + Na2C2O4 I assume that is 25.00 mL H2C2O4. milliequivalents(meq) NaOH =

    asked by Melba on September 26, 2006
  46. Chemistry

    Consider the following balanced equation: 2N2H4(g)+N2O4(g)→3N2(g)+4H2O(g) Complete the following table showing the appropriate number of moles of reactants and products. If the number of moles of a reactant is provided, fill in the required amount of the

    asked by Carter on March 5, 2014
  47. 7th Grade Journalism/Interview

    I had to give an interview to a parent about Teens and Cell phones. I got ten questions, gave the interview, and reported results. Thanks for any and all feedback. Cell Phones and social networking 1) Do you think that teenagers, and kids, need to be more

    asked by katt♥ on December 5, 2012
  48. Social Studies

    My most exalted Monarch - Your Majesty Queen Isabella, I am writing this letter most humbly for you to consider my request for three small ships and a crew so that I may sail west and find the shortest route to the East. I promised to chaim land for Spain

    asked by Laruen on November 17, 2011
  49. physics, torque

    A crane shown in the drawing is lifting a 170-kg crate upward with an acceleration of 1.8 m/s2. The cable from the crate passes over a solid cylindrical pulley at the top of the boom. The pulley has a mass of 130 kg. The cable is then wound onto a hollow

    asked by Marigold on June 4, 2007
  50. Chemistry

    Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium equation CO2(g) CO2(aq) K=0.032 The acid dissociation constants listed in most standard reference texts for carbonic acid

    asked by helllp on April 7, 2013
  51. BUSINESS Law HELP!

    B decided to give himself a combination graduation 18 Bday(will occur in 2 wks) gift and purchased a car which he could use. B found a car which he like at F's Used Car Lot. A sign in the windshield indicated that the sale price was $2,500. While he spoke

    asked by May on March 28, 2008
  52. Algebra

    2. Use an augmented matrix to solve the system. x + y = 5 3x – y = –1 (1 point) (1, 4) (1, 5) (3, –1)*** (5, –1) 3. When converting a system of linear equations into an augmented matrix, what equation form is needed? (1 point) slope-intercept form

    asked by Student on January 21, 2019
  53. Algebra

    Zemo, Orb, Yuko, and Sam are friends who live on neighboring space stations of the planet Krayon. They commute to school every day by space shuttle. Orb's space station is one half as far from Krayon as Zemo's space station. Yuko travels as far as the

    asked by samay on March 21, 2018
  54. CHEMISTRY HELP!

    a. According to the Henderson-Hasselbalch equation, how many grams of sodium acetate will you need to add to 125 mL of 0.100 M acetic acid to make a pH=4.74 buffer? (I found this to be 1.025g) I need help with the rest b. What is the actual pH of the

    asked by Anonymous on April 7, 2011
  55. Mathematics

    If alpha,beta,gamma,delta be the roots of the equation x^4-x^3+2x^2+x+1=0,find the value of 1. (2 alpha + 1)(2 beta + 1)(2 gamma + 1)(2 delta + 1) 2. (alpha square + 1)(beta square + 1) (gamma square + 1)(delta square + 1)

    asked by Bobo on January 19, 2015
  56. English

    well i am writing an essay on why love is a life affirming experience and i cant think of a thesis sentence which is basically the 3 reasons i need....i would just like to know some reasons for my body paragraphs. thanks! well see its like i HAVE to do

    asked by Faith on May 22, 2007
  57. Physics

    A roller coaster car of mass 1000kg is riding along a track from point A to point C. (point A is 75m high, B is 50m high and C is 100m high, so that there are a total of three hills.) the final velocity at point C is 10m/s a) Assume no friction what is the

    asked by Tammy on November 14, 2007
  58. Math

    5.Jack participated in a 6 day bike marathon of 430 kilometers. He biked 90 kilometers on each of the first 4 days and y kilometers on the fifth day. Which equation can be used to find b, the number of kilometers Jack biked on the sixth day?

    asked by Jerald on June 4, 2013
  59. math (sinusoidal functions

    The height of the rider on a Ferris Wheel can be modeled by a cosine function. At time t = 0, a rider boards the Ferris Wheel at its minimum height of 3 m. The maximum height of the Ferris Wheel is 39 m. During the 8 minute ride, the rider reaches the

    asked by Steven Smith on August 1, 2017
  60. finance concepts

    Sue and Tom Wright are assistant professors at the local university. They each take home about $40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 13 and 11. Were either one to die, they estimate

    asked by Anonymous on April 12, 2008
  61. maths

    Kat has a recipe for a 10cm square based iced cake of height 5 cm. He wants to scale the recipe down for a 6 cm square based cake tin, by scaling it down all the ingredients to give a smaller cake of the same shape. Choose the three statements which are

    asked by katie on April 19, 2007
  62. Calculus

    An island is 3 mi from the nearest point on a straight​ shoreline; that point is 6 mi from a power station​. A Utility company plans to lay electrical cable underwater from the island to the shore and then underground along the shore to the power

    asked by Laura on April 30, 2016
  63. Pre Calc

    Naturalists findthat the populations of some kinds of predatory animals vary periodically. Assume that the population of foxes in a certain forext vareis sinusoidally iwth time. REcord started being kept when time t = 0 years. A minimum number, 200 foxes,

    asked by Joe on December 6, 2009
  64. math

    the seasonal operating cost in dollars per square meter of grain bed for such a dryer consists of the cost of heating the air. heating cost=0,002Q(delta T) and blower operating cost Blower cost=2.6^(10^-9)Q^3 where Q= air quantity deliverd through the bed

    asked by Alicia on December 7, 2010
  65. using the geometric-programing method of constrain

    the seasonal operating cost in dollars per square meter of grain bed for such a dryer consists of the cost of heating the air. heating cost=0,002Q(delta T) and blower operating cost Blower cost=2.6^(10^-9)Q^3 where Q= air quantity deliverd through the bed

    asked by Alicia on December 8, 2010
  66. chemistry

    CaCO2--> CaO+CO2

    asked by Anonymous on March 1, 2009
  67. Chemistry

    This may help a little. Although this may appear to be all about temperature, read thourough it and note that temperature denatures the enzyme and how that affects the K and the Arrhenius equation. (Broken Link Removed) An enzyme gets denatured at high

    asked by DrBob222 on December 25, 2006
  68. science

    which is the correct balanced equation for a given titration process, (a) or (b)? a) 6H+ + 2MnO4- + 3H2O2 -> 4O2 + 2Mn2+ + 6H2O b) 6H+ + 2MnO4- + 5H2O2 -> 5O2 + 2Mn2+ + 8H2O Process: Make a solution in a 100mL volumetric flask using 1g of NaBO3*4H2O, 20mL

    asked by sarah on March 30, 2011
  69. math

    LEGO R bricks are very common toys and have a structure that allows them to be placed on a rectangular grid. This makes them great for interesting questions about math. A 24 brick has two rows and four columns, making it have 8 total studs. But a 24 is

    asked by al on November 10, 2014
  70. Math help

    Samantha finds a bank, Star Bank, which offers a CD account with a 2% interest rate every month. Star Bank’s interest is not compounded. The interest is based on the original amount of deposit. Remember that Samantha has $500 to start the account. She

    asked by Anonymous on January 24, 2016
  71. chemistry

    When N2O5 (g) is heated it dissociates into N2O3 (g) and O2 (g) according to the following reaction: N2O5 (g) N2O3 (g) + O2 (g) Kc=7.75 at a given temperature. The N2O3 (g) dissociates to give N2O (g) and O2 (g) according the following reaction: N2O3 (g)

    asked by Anonymous on February 12, 2011
  72. Spanish

    Because underline doesn't show I will replace the underline with parentheses. I hope it's less confusing. 6. Choose the sentence in which the underlined word is grammatically correct. A. Esta varilla negra (está) parada sobre otra cosa negra. B. Esta

    asked by anon on March 16, 2011
  73. child care

    1. A main source of fat and saturated fatty acids in children's diet is A> meat B. candy C. whole milk D. french fries (My answer is D) 2 when a child demonstrates an inability to leap over a barrier, his teacher checks to see if he has mastered the skills

    asked by action on August 19, 2010
  74. Statistics

    An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please answer the following: a)What

    asked by Ewuraadjua on May 16, 2013
  75. Case Study/ written report

    Plese check this for me thanks any ideas or suggestions that you may have would be great CASE STUDIES Note: For the purpose of this lesson assume that all available dogs are bred to their respective breed standards and possess correct temperament and

    asked by Sam on April 10, 2009
  76. English News Articles

    Could you please give me some good new article links for my agumentive essay on oil dependency. Thanks! My prompt: Does the US need to reduce its dependence on Middle Eastern oil? If you argue that it does, then provide a way for this to be accomplished

    asked by Soly on October 28, 2006
  77. Safety of Tooth Bleaching

    From what was commented on my report on tooth bleaching hazards, I was curious to know what exactly everyone thought about it. I really thought from the comments I read besides those from drwls, that ideas were inconclusive as to whether it was a good

    asked by ~christina~ on August 12, 2007
  78. PHYSICS! PLEASE!

    The following data concerns a tennis ball at a given instant before it is struck by a tennis racket; horizontal momentum of tennis ball= 2.4Ns kinetic energy of ball= 45J a) why is correct to give the direction of the momentum but not the kinetic energy b)

    asked by Kim on October 15, 2006
  79. Ratios and proportions

    RATIOS AND PROPORTIONS x 3 - = - 4 2 The boards don't post spacing as we would wish. I suppose the problem is x/4 = 3/2. Multiply left and right sides by 4. That will "cancel" the 4 in the denominator of the left side. Now multiply both sides by 2. That

    asked by seth on August 5, 2006
  80. Bio

    How much solute is required to make 600mL of a 0.4 M solution of Tris buffer? FW of Tris Buffer= 121.1g Work: Molarity equation= moles of solute/ liters of solution Step 1: 121.1 g / 121.14 g/mol TB = 0.9996 mol TB Step 2: Molarity Eq'n= moles of solute/

    asked by Cindy on January 30, 2018
  81. math

    The measure of an interior angle of a regular polygon is 135 degrees. Find the number of sides in the polygon. This is what I tried: 180(x-2)=135 [Interior Angle Sum Theorem] x-2=.75 x=2.75 That can't be right though. Help? Not sure about your formula.

    asked by Emily on March 27, 2007
  82. Math

    Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7),

    asked by Allison on January 28, 2015
  83. Business/ Strategic Management

    If you don't mind if you could give me TWO PRICES one for 1.) full assignment Deliverable Length:Tables count for 2 pgs and 4 pages in MS Word format Due Date: 6/18/2010 latest 6/19/2010 Research the British Petroleum website. Using your research findings

    asked by Anonymous on June 15, 2010
  84. chemistry

    the composition of hydrogen selenide can be determined by heating tin(Sn)in a measured volume of gas the hydrogen selenide is decomposed producing solid tin selenide(SnSe)and hydrogen gas if the temp,and pressyure are unchanged,the gas volume when the

    asked by JILLIAN on January 24, 2007
  85. Mechanical behavior

    This part I have: 1)Derive an equation for the bending deflection δ of the bat at B, where the ball hits the bat, in terms of the applied load, P, the span, lAB, the Young's modulus of ash, E and the moment of inertia of the cross section, I. Answer:

    asked by HELP on November 8, 2015
  86. math please help

    This part I have: 1)Derive an equation for the bending deflection δ of the bat at B, where the ball hits the bat, in terms of the applied load, P, the span, lAB, the Young's modulus of ash, E and the moment of inertia of the cross section, I. Answer:

    asked by HELP on November 8, 2015
  87. math

    Data​ (x,y) for the total number​ (in thousands) of​ college-bound students who took a test in the year x are approximately ​(11,1177), ​(8,1493​), and ​(11​,1664), where x=1 represents 2001 and x=8 represents 2008. Find the values​ a, b,

    asked by lea on October 22, 2017
  88. Personal Finance

    Bernie and Pam Britten are a young married couple beginning careers and establishing a household. They will each make about $50,000 next year and will have accumulated about $40,000 to invest. They now rent an apartment but are considering purchasing a

    asked by Sue on October 11, 2008
  89. Chemistry

    So my chem experiment asks us: What is the molarity of a 6.0 ppm solution (it's a 6.0 ppm chlorophyll solution, hexane is the solvent) Now, I've found a few ways to solve for it but they both give me different values. If it's possible, could you just tell

    asked by Just One Stranger on December 6, 2012
  90. Math

    Describe a situation that matches the equation. 34 = g + 25 Jack has 25 marbles. Mary gives him 34 marbles. How many marbles does Jack have? A person bikes 34 miles on Monday and 25 miles on Tuesday. How many miles total did the person bike? The

    asked by kid on November 29, 2018
  91. english - Mrs. Edith Frank

    I have to write a monologue as if I am Edith Frank, Anne Frank's mother. Could you please check for any grammar mistakes and give me comments about it? Is it too serious? Just a few days ago, we were delighted at the news Miep brought us: the war is near

    asked by jennifer on March 19, 2009
  92. Govt. accounting

    The following information relates to Dell City, whose first fiscal year ended December 31, 2006. Assume Dell has only the long-term debt specified in the information and only the funds necessitated by the information. 1. General fund: • The following

    asked by sonia on March 22, 2008
  93. Probability & Statistics

    Charmaine is looking at the rental car prices for Get You There Rental Car Company. The cost is based on how many miles you plan to drive the rental car. Use the list of rental prices to answer the questions 1- 5. Miles Cost 200 $80 600 $120 1000 $160 1400

    asked by Annie on April 30, 2013
  94. Probability & Statistics

    Charmaine is looking at the rental car prices for Get You There Rental Car Company. The cost is based on how many miles you plan to drive the rental car. Use the list of rental prices to answer the questions 1- 5. Miles Cost 200 $80 600 $120 1000 $160 1400

    asked by Annie on April 30, 2013
  95. Chem

    Can someone check these homework answers please? 32. The barometric pressure measured outside an airplane at 9 km was 259 mmHg. Calculate the pressure in kPa. 34.5 kPa 36. A diving bell is a container open at the bottom. As the bell descends, the water

    asked by Anna on November 11, 2008
  96. Chemistry

    Need help in AP chemistry on Equilibrium When heated, hydrogen sulfide gas decomposes according to the equation 2 H2S(g) ⇄ 2 H2(g) + S2(g) A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to

    asked by Sam on April 9, 2012
  97. Chemistry

    Question: 50cm3 of 0.4 M Ba(OH)2 and 50cm3 of HA of unknown concentration is added together.At 25°C,pH of the solution is 9.With appropriate assumptions calculate the [HA] and ka of HA. My thoughts on the question: There are more than one approach which

    asked by Shenaya on May 28, 2017
  98. Chemistry

    1.) The average velocity of Cl(2) molecules is 2.50 x 10^3 m/sec at a temp of 25 C therefore the average velocity of helium atoms is ?? [ i got the answer 5.94 x 10^2 m/Sec is that right] 2.) A gas is allowed to expand from 1.5 : to 12.5 L against a

    asked by Emmanuel on March 29, 2009
  99. French

    Could you check these thanks Directions: Answer as indicated, using the pronoun en. Part 1 1. Tu as de l'aspirine? Answer: Oui, j'en ai. 2. Tu as du sirop? Answer: Non, je n'en ai pas. 3. Tu as des médicatments? Answer: Non, je n'en ai pas. 4. Tu as de la

    asked by Rachel on January 15, 2010
  100. physics

    A horizontal spring attached to a wall has a force constant of 800 N/m. A block of mass 1.10 kg is attached to the spring and oscillates freely on a horizontal, frictionless surface as in the figure below. The initial goal of this problem is to find the

    asked by Anonymous on September 27, 2011

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