1. Chopsticks

    solve the equation for x using the quadratic formula: 3x^2 + 8x + 1 = 0 Work: I tried factoring it, but I can't do it. (3x + ?)(x + ?) I'm thinking the ? = 1 but that won't work.
  2. physics

    Why bother using a machine if it cannot multiply work input to achieve greater work output?
  3. mugwazeni

    IAm doing grade 10 and my subject are;history ,geography and economics so I want to know what kind of work am I going to work
  4. College Algebra

    How do you work out this problem? 3x3 + 2x2 + 3x+2 I showed three different people my work an they said I did it wrong I am so confuse.
  5. Business

    Why are union officials likely to oppose flexible work hours and other innovative work schedules?
  6. Math

    A does 20% less work than B .If a complete a piece of work in 7& 1/2 hours then B can do it in options- 5,5&1/2,6,6&1/2 plz solve without using x and y method
  7. physics

    How much work in joules is done by a person who uses a force of 25 N to move a desk 3 m? Show work and formula.
  8. art

    i am researching a piece of art work by frida kahlo and i need more infomation about he work, any sujestions?
  9. physics

    16. How much work is done on a bookshelf being pulled 4.00 m at an angle of 35.0„a from the horizontal? The magnitude of the component of the force that does the work is 87.0 N
  10. Management

    operational planning sets up work schedules, routine work procedures, and timetable
  11. math

    A party store offers small balloons and large balloons. You can choose from pink, blue, green, and yellow balloons. You can choose from silver, gold, and white ribbons. Use the counting principle to find the number of different ways you can choose a
  12. science

    If you lift a bag that weighs 15 N a distance of 2 m, how much work have you done? work=weight*distanceupward
  13. Physica

    How much work is done by a person lifting 2 Kg object from a bottom of a well at constant speed of 2 m is ( work =...... kj )
  14. math

    the key...^=exponent QUESTION: What is 2^3-6x3^2 Can anyone help me please!!!! 2^3 is 8 3^2 is 9 I will be happy to check your work. is it 1? [[[help]]] u there No, of course not. Where is your work?
  15. math

    my 7 year old is having problems doing his work. can you please give me some work sheets for him that are fun and educational.
  16. Algebra

    I cannot seem to work this problem out correctly as all answers found do not make the equation work. 1/4 - 2/3y = 3/4 - 1/3y
  17. physics

    Im confused! How would you calculate the work done by a plane? I know work= f d, i just don't know how to get the force and distance!
  18. physics

    A 54.5-kg skateboarder starts out with a speed of 1.95 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The
  19. Math

    Six girls each invited a date to the Sadie Hawkins dance. Before they joined in the fun, each couple worked in a different booth. The booths were Popcorn Sales, Marriage, Hayrides, Old Time Photos, Lemonade, and Raffle Tickets. Grab your partner and go
  20. Physics

    The "work function", or the minimum energy needed to eject an electron from the metal, can be expressed in several different ways. As stated on the applet page, sodium has a work function of 2.75 eV. In class, we discussed how to determine what that work
  21. Physical Science

    You supply 400 kilocalories of heat energy to a block of ice, with a mass of 14 kg. What will be the outcome?
  22. chemistry

    I'm supposed to find the pH of .1M HC2H3O2. since this is a weak acid, i used the ICE method with the given 1.8x10^-5 ka. and i got a pH of 4.4, but it was wrong....
  23. P

    Why is an ice cube at 0°C more effective in cooling soft drink than the same mass of water at0°C?
  24. Physics

    Why is an ice cube at 0°C more effective in cooling soft drink than the same mass of water at0°C?
  25. science

    What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?
  26. Chemistry

    What quantity of heat (kJ) is required to convert 200g of ice at 0.00C into water at 50C?
  27. Physic

    Show the equation that 100g of 100C steam will completely melt 800g of 0C ice.
  28. science

    What are the similarities and differences in the ice core, tree ring, and surface temperatures data?
  29. Chemistry

    If 9560 J of energy were absorbed by 500. g of ice at 0.0 °C, what would be the final temperature? Can someone walk me through setting this up?
  30. physics

    How much heat is required to convert 3kg of ice at -5 degees C into steam at 125 degrees C?
  31. science

    the temperature of the water that forms while ice melts is 32 degrees fahrenheit true or false?
  32. Chemistry

    What is the heat outflow when 2kg of dry saturated steam at 8.0 bar is converted into ice at -10°C
  33. chemistry

    What is the amount of heat required to turn 1 g of ice into vapor directly without forming a liquid first?
  34. science

    What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?
  35. chemistry

    How much heat is required to convert 0.4 kilograms of ice at 0 degrees celsius to water at the same temperature?
  36. chemistry

    How many joules of heat are removed to completely covert 70.0 grams of water to ice at zero Celcius?
  37. Chemistry

    Find the total number of calories needed to change 23.0 g of ice at -34.0C to steam at 222.0C
  38. chemistry

    how many kilocalories of heat are released when 85g steam at 100 degrees C converted to ice at 0.
  39. science

    What happens at the particle level when you put ice cubes in the glass of room-temperature lemonade?
  40. Physics 2

    What quantity of heat is needed to convert 1kg of ice at -10C to liquid at 20C?

  42. Social Studies

    What role did the ice age play in the migration of people and animals to North America?
  43. physics

    a2kg hockey puck is sliding across the frictionless ice at 6m/s.how much force is required to keep it moving at 6m/s
  44. physics

    What mass of ice at -14°C will be needed to cool 200cm³ of an orange drink(essentially water) from 25°C to 10°C?
  45. science

    How much latent heat is needed to completely melt 368 gram ice cube?
  46. Chemistry

    How much heat (kcal)is needed to melt 14 ice cubes? Each cube is at 0c and has a mass of 28grams.
  47. physics

    What is quantity of heat required to melt down completely 1kg of ice at 30 degree celsius
  48. Chemistry

    Calculate the [H3O+] of each of the following H2SO4 solutions. For a 0.50 M soln How do I reach the answer? Do I have to use a ice table?
  49. Chemistry

    Determine the energy in K calories needed to convert a one pound block of ice to steam
  50. Chemistry

    I know you're not supposed to consider water for equilibrium calculations (ICE tables and Kc) if it is liquid, but what if it is aqueous or gaseous? Thanks!
  51. physics

    A 0.0400 kg ice cube at -30.0°C is placed in 0.400 kg of 35.0°C water in a very well insulated container. What is the final temperature?
  52. Chemistry

    Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. .16M CH3NH3Cl
  53. Chemistry

    How do you calculate the heat fusion of ice? I have the initial and final temperatures and volume of the water.
  54. science

    What happens at the particle level when you put ice cubes in a glass of room temperature lemonade?
  55. physics

    How much heat is needed to convert 1.0kg ice at -5celsius to steam at 105 celsius?
  56. chemistry

    how much heat dows a 23.0g ice cube absorb as its temp increases from -17.4deg C to 0.0deg C?
  57. Chemistry

    I am doing a experiment with ice and i have to discuss the accuracy and precise of an uncertainy measure. How to express that answer.
  58. Chemistry

    What is the molar change in enthalpy when 100g of ice is heated from -72°C to -18.2°C?(cp=37.4 J/k•mol) Would the answer be 1118 kJ
  59. chemistry

    What is the final temperature when 54g ice at 0oC is mixed with 200g water at 65oC
  60. physics

    A skater is gliding along the ice at 2.2 , when she undergoes an acceleration of magnitude 1.2 for 3.0 . At the end of that time she is moving at 5.8
  61. chemistry

    When you set up the ICE chart, are you supposed to bring the 0.05 to the product side to give you an equation of x^2 / x - 0.05?
  62. Chem

    How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?
  63. Physics

    How much energy must be removed from 30 L of liquid water at 0-degree celsius in order to convert it to ice?
  64. Physics

    A cube of ice, 28 cm on each side,is melted into a measuring cup. What is the volume of the liquid water -------cm^3
  65. chem

    If this sample of dry ice were to be placed in an evacuated 1.0 L container and allowed to come to room temperature (25 oC), what would the pressure be?
  66. physics

    what is the heat required to convert 0.1 kg of melting ice into steam at 100 degree celcius
  67. Science

    TRUE or FALSE? when ice cubes melt into liquid water, its physical properties changes
  68. Chemistry

    Calculate the enthalpy change for the melting of a 30 g ice cube. Show all your steps. Any help is appreciated! :)
  69. physicis

    What is dry ice behavior when acted on by a steady push that keeps up with the block and when it is a given a quick shove.
  70. jobs 4 teens

    im a 13 year old girl and i just want to ask if i coul be able to get a job at my age ? i live in the uk and i want to gt some money but i don't know if i will be able to. I babysit. My mom made be take a babysitting class and CPR. Parents like that I took
  71. Chemistry

    Ethyl butyrate is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst. i) Given 8.45g of butanoic acid
  72. english

    3. identify the complete sentence 3-4 a. chocolate milk, chocolate fudge , idc cream, and candy b. the average american nearly twelve pounds of chocolate each year c.the scientific name for chocolate is theobrina cacao d. loosely translated to "the food of
  73. Math

    which ordered pair is the solution of the following system of equations? y=2x-3 x+y=3 1) (1,2) 2)(2,1) 3)(3,0) 4)(3,3) MY work: y=2x-3 x+(2x-3)=3 3x-3=3 +3 +3 3x/3=6/3 x=2 x+y=3 2+y=3 -2 -2 y=1 so I got (2,1) which would be answer 2 Is this correct? Thanks
  74. Phsics

    HOW MUCH WORK IS DONE With a HORIZONTAL FORCE OF 50.0 N AT AN ANGLE OF 24 degrees over a level distance of 5.0 m. What net work is done on the box?
  75. Science

    calculate the work done when a 15N FORCE Push es a car 3m please give me the step in how to work the problem
  76. science

    How much work do you do when you climb a flight of stairs 4 m high? The work will be your weight times the distance upward.
  77. physics

    if an ideal gas expands rapidly doing work 450 j of work on its environment, how much heat flowed into or out of it
  78. Physics

    What visible wavelengths will eject electrons from a a metal with a work function of 2.6 eV? Please show all work I am a little confused :)
  79. math

    it takes dan 25 min. to walk to work. if he arrived at work at 6:40a.m when did he leave his house?
  80. DrBob222 my previous question

    You asked me to show my work for one of my questions a few minutes ago and i need you to verify my work because you said my answer was wrong
  81. economics

    if Q = 60 − (1/2)P, and MC = 60, which means that MR = 60 how do you work out the price, which then allows you to work out the Q. does the graph still exhibit a slope at twice the rate of the demand curve? thanks for looking in
  82. Math/Sciance

    Can someone please give an example of how i can use this formula in a word problem... Work out (J) Percent efficiency(e)= ____________ x100 Work in (J)
  83. Chemistry

    I'm having trouble with converting units. My teacher wants us to show work but I can't figure out how to do it. An example is, 35 mL = ____ dL. By showing work, how do you do that?
  84. Physics

    Show that 90 J of work is needed to increase the speed of a 20-kg cart by 3 m/s. Power = work done time interval= W t
  85. Math/Science

    Can someone please give an example of how i can use this formula in a word problem... Percent efficiency= Work out (J) _____________ x100 Work in (J)
  86. math

    Solve using the algebraic method. x+5=15 SHOW WORK thanx subtract five from each side. Do you have an allergy to showing work?
  87. Physic II

    How much work is done by 3 moles of gas when they triple their volume at a constant temperature of 400 K ? show work please
  88. Statistics

    A city ballot includes a local initiative that would legalize gambling. The issue is hotly contested, and two groups decide to conduct polls to predict the outcome. The local newspaper finds that 53% of 1200 randomly selected voters plan to vote "yes,"
  89. physics

    Guy has to get a piano onto a 2.4 m high platform. He can use a 3.0 m long frictionless ramp or a 4.0 m long frictionless ramp. Which ramp will Guy use if he wants to do the least amount of work? Either ramp as the work done is same in both cases. The
  90. Finite Math

    Pete's Pizzeria offers 30 different pizza toppings. How many 3 topping pizzas are possible (assuming the toppings are distinct)? If we allow any number of toppings (all distinct), including none, how many different pizzas are possible?
  91. Business Math

    Dylan's Bicycle Shop offers a new bicycle on sale for $259.92 after a 10% markdown. What was the cost of the bicycle to Dylan if the markup was 30% based on the cost? Round
  92. math

    A sale at Carney’s Electronics offers a specific model of Sony radio at 20% off the regular price. If the sale price of the radios is $45, what is the regular price?
  93. math

    a sale at carney's electronic offers a specific model of sony radio at 20% off the reg price. if the sale price is 45 what is the reg price? would the answer be 54?
  94. Math

    The rates for Internet use offered by three companies are shown below. Company A: $6.00 every 90 minutes of use Company B: $2.75 every 45 minutes of use Company C: $3.00 for every 60 minutes of use Which company offers the lowest rate per minute?
  95. Language Arts

    Write an essay in which you analyze the importance of plot events and characters' actions to the development of a story's theme. You might choose "Raymond's Run" by Toni Cade Bambara, "The Story-Teller" by Saki, "The Finish of Patsy Barnes" by Paul
  96. Recycling Flyer

    Is this a good flyer for a community recycling program? Help Your Community! A local issue in our community is that there is no town-sponsored recycling program. Unfortunately, this issue is not being addressed by the local political and business leaders.
  97. physics. please help

    A worker pushes a 820 N crate with a horizontal force of 345 N a distance of 24 m. Assume the coefficient of kinetic frictin between the crate and the floor is 0.22. a) How much work is done by the worker on the crate? b) How much work is done by the
  98. Microeconomics

    You are asked to examine the market for luxury housing in the southern Westchester town of Quietville. This kind of housing is said to be a normal good. In Quietville a substantial proportion of the people who buy luxury homes are people who work in the
  99. Physics

    1. An arrow is shot from the top of a 50 m castle wall at 18 m/s horizontal to the ground. How far from the base of the castle wall will it land? 2. A cannon with a muzzle velocity of 45m/s is shot a various angles to get maximum distance. The general
  100. Chem...one more time

    Ok ok I swear after this I'm done asking questions. It's just that I'm trying so hard to understand all of this, but sometimes it just doesn't make sense to me! So here we go: How many J of energy must be removed when 124.0 g of steam, at a temp. of 167.0