1. Algebra

    I need help with two math problems. 1. A triangle has vertices (1, 4), (1, 1), and (-3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What are the vertices of

    asked by Kelly on May 19, 2013
  2. Chemistry

    a potassium dichromate is prepared by 0.3525grams of K2Cr2O7 is enough water to yield 250.0mL of solution. a student then measures 10.00mL of an unknown solution of Fe2+ into an erlenmeyer flask and dilutes with 90mL of 1.0M hydrochloric acid. she then

    asked by Anonymous on April 1, 2014
  3. AP Chemistry

    A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 10-4) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak

    asked by Anonymous on March 23, 2016
  4. AP Chemistry

    A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 10-4) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak

    asked by jesse on March 23, 2016
  5. Chemistry

    20.0 mL of a 0.18 M HCl solution are combined with 50.0 mL of a 0.085 M NaOH solution. What is the pH of the resulting solution?

    asked by Molly on April 27, 2015
  6. algebra 2

    How much of an 18% solution of sulfuric acid should be added to 360 ml of a 10% solution to obtain a 15% solution?

    asked by Derron on June 22, 2010
  7. Chemistry

    Pure water is added to 25.0 mL of a 1.00 M HCL solution. The new solution has a volume of 2.00 L. What is the pH of the new solution.

    asked by Derrick on May 1, 2012
  8. college

    what quantity x of a 65% acid solution must be mixed with a 20% solution to produce 300 mL of a 45% solution

    asked by Claire on September 2, 2010
  9. Chemistry

    0.75 L of a 48.5 %V/V methanol solution is diluted to make 5.60 L of solution. What is the final concentration of this solution?

    asked by JavaCompiler on May 7, 2016
  10. chemistry

    require 400 mL of a 0.4 M NaOH solution and you have a 1.2 M stock solution. How would you make up the solution?

    asked by roshan on September 13, 2011
  11. Math

    What amount of a 60% acid solution must be mixed with a 30% solution to produce 300 mL of a 45% solution?

    asked by Anonymous on September 15, 2016
  12. chemistry

    How many grams of are present in a solution if 38.60 of 0.145 solution is needed to titrate the solution?

    asked by LaKeisha on October 2, 2012
  13. chemistry

    You have a 10 M acidic solution. However, you need that solution to be 0.25 M. How many ml of 10 M should be diluted to obtain 300 ml of 0.25 M acid solution?

    asked by markees on January 3, 2011
  14. Algebra 1 Honors

    2x+4=5(x+1) -2(x+2) Would this be identity (all numbers are the solution), No solution (no real number solution), or can it be solved?

    asked by Stefanie on October 9, 2011
  15. Chemistry

    To what volume must a solution of 86.1 g H2SO4 in 494.0 mL of solution be diluted to give a 0.18 M solution?

    asked by Sam on May 11, 2011
  16. Fine Art

    I have to examine the art work "Winged Genie Fertilizing a Date Tree" and explain the elements of art found in the art work and explain what type of movement is shown in this work. I'm really struggling with this and behind on my work. Any help anyone

    asked by Kylee on November 10, 2014
  17. chemistry

    25mL of tartaric acid solution is titrated against 31mL of NH4OH. What is the normality of the NH4OH? Please explain how to work this problem.

    asked by Stephen on October 5, 2012
  18. 11th Grade Physics

    An aircraft has a take-off speed 180km/h and length 250m from the start just before take-off a serious snag is detected in the engine and the aircraft failed to take-off. There is a wall at a distance 'd' = 230m ahead of the take-off point. The pilot

    asked by Praveen on July 27, 2010
  19. managment ethics

    How do we solve this dilemma? Assuming capitalism is based on a mutual system of trust among consumers and producers, employers and employees, is one justified in breaking a contract even if it's in the pursuit of happiness? If we used Kant's Categorical

    asked by flowerpower on March 13, 2010
  20. Math -Precal 11

    Show that the point P(7,7) is on the perpendicular bisector of the line segment joining A (6,-1) to B (0, 3). Also, verify that P is the same distance from A and B. For what values of k is the line y=l tangent to the circle (x-3)^2 + (y+2)^2 = 36? Thanks!

    asked by Dy on May 10, 2007
  21. urgent chem help ( dr bob plz)

    A particular household ammonia solution (d= 0.97g/mL) is 6.8% NH3 by mass. How many milliliters of this solution should be diluted with water to produce 650 mL of a solution with pH = 11.55? ------------------------- i am gettig 5.3 x 10^-10 is that rite

    asked by javeya on February 17, 2009
  22. Chemistry

    From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.

    asked by CC on February 9, 2010
  23. chemistry

    10g of nacl were added to 10ml of water. the resulting solution was diluted to be a final volume of 250ml. Given the density of the solution is 0.9864g/ml. Calculate the molality of the solution. Who helps

    asked by Fai on December 25, 2012
  24. CHM

    From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.

    asked by CC on February 9, 2010
  25. Chemistry

    Assuming equal concentrations , rank these solutions by pH. RbOH(aq), NH3(aq), HF(aq) HBr(aq), Ca(OH)2(aq). I know the most acidic solution has the lowest pH and the most basic solution has the highest pH. But how am i supposed to know the pH if i don't

    asked by Nia on October 17, 2011
  26. math

    Paul multiplied the sum of three and a number by three. This result was equal to fifty four plus twelve times the opposite of the number. What was his number? please explain and show work.

    asked by Johnny on July 2, 2014
  27. math

    if sin theta equals 3/5 and theta is second quadrant angle find tan 2 theta.my ans. was 3.442 but is wrong can you correct and show work please. thank you so much.

    asked by lily on April 10, 2009
  28. hernandez

    find the molar enthalpy of vaporization for a substance, given that 3.21 mol of the substance absolve 28.4 kj of energy as heat when the substance changes from liquid to gas? show the work

    asked by ady on May 30, 2013
  29. ipc

    Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2.

    asked by Anonymous on November 4, 2009
  30. Chemistry 2

    You have a stock solution of 15.0 M NH3 . How many milliliters of this solution should you dilute to make 1200ml of 0.280 M NH3? If you take a 15.0ml- portion of the stock solution and dilute it to a total volume of 0.600 L , what will be the concentration

    asked by Melissa on December 3, 2009
  31. Chemistry

    You have a stock solution of 14.4 M NH3. how many mililiters of this solution should you dilute to make 1050mL of .220 M NH3 answer 16.o mL Question if you take a 10.5mL portion of the stock solution and dilute it to a total volume of .600L, what will be

    asked by Natalie on February 21, 2011
  32. chemistry

    you add 0.05ml of 0.10M agno3 to 4ml of 2.0 nacl it forms saturated solution of agcl ag+ + cl- using a saturated solution you set up ag | ag+( test solution after reaction) || ag+(1.0ml) | ag how do we calc the equilibrium of ag+ of the test solution after

    asked by Jeanine on March 29, 2011
  33. chemistry

    A solution is made at room temperature containing 90 g of NaCl and 200 g of water. It is brought to a temperature of 50°C. What are you most likely to see? (Select all that apply.) A. a solution with a few crystals at the bottom B. all the solid dissolve

    asked by KSLE on September 13, 2010
  34. Chemistry

    1.06g of Na2CO3 is dissolved in water to make 250cm^3 solution. 10.0 cm^3 of this solution was further diluted to make 500cm^3 of 2nd solution. 25.0cm^3 of 2nd solution reacted with 28.5cm^3 of HCl. Find the concentration of HCl in mol/dm^3

    asked by Gary on July 14, 2016
  35. analytical chemisty

    Consider the standardization of a solution of K2Cr2O7 with iron metal according to the following: Reaction: Fe + Cr2O7-2 → Fe +3 + Cr+3a. How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution? What is the exact normality of the

    asked by Anonymous on February 2, 2013
  36. drwl please check

    A shot-putter puts a shot (weight = 70.1 N) that leaves his hand at distance of 1.53 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.18 m above the ground. Include the correct sign for work. (b)

    asked by Mary on February 27, 2007
  37. Pre Algebra

    I have work problem that I am unable to solve. Each hour Maggie baby sits she charges $2 plus .75 for each child. Write an equation for Maggie's hourly rate h in terms of the number of children c. Solve the equation to find the hourly rate when Maggie baby

    asked by Jared on November 7, 2011
  38. Chemistry

    A solution of 0.211 M NaOH is used to titrate 24.0 mL of a H2SO4 solution. If 19.0 mL of the NaOH solution is required to reach the endpoint, what is the molarity of the H2SO4 solution? H2SO4(aq)+2NaOH(aq)→2H2O(l)+NaSO4(aq)

    asked by Ava on July 22, 2016
  39. Chemistry

    determine the approximate molarity of a solution of NaOH prepared by diluting 10ml of 6M NaOH to a volume of 400 ml. using the solution in the first part, 24.5ml of NaOH solution was required to neutralize 26.4ml of a .150M HCl solution. find the molarity

    asked by Chuck on February 28, 2008
  40. CHEMISTRY

    Ion Concentrations 1.) A solution is prepared by dissolving 5.00 g of stannic nitrate in enough water to make 250.0 mL of stock solution. A 15.0 mL aliquot (portion) of this stock solution is then removed and added to 75.0 mL of water. Calculate the

    asked by Anonymous on October 25, 2013
  41. algebra

    Find the square roots of 3+4i. The answer should be in the form a+bi? The answer that i got was 2+i, but it did not seem to work. Any advice on what might be happening in this problem, and how to solve it?

    asked by Gem on March 31, 2015
  42. Math 222

    Please help me solve this Quadratic Formula with steps on how you got the answer. Sorry my addition and equal button doesn't work. -x^2 plus 3x plus 5 equal 0

    asked by Tika on April 23, 2015
  43. 7th grade math

    Solve by applying the counting principal. When using a four number PIN, how many different PINs are possible? a*b*c=___ I need help.. how do I work this? Step by step please.

    asked by Melissa on October 7, 2009
  44. Algebra

    what is two ways to simplify the two problems? problem 1: (-4m^2 n^2)^3 * (2m^3 n)^-1 solution 1: -(32n^5/m^9) Solution 2: ? problem 2: (x^-(1/2) y^3)^-2/ xy^(1/3) * x^2 y^-4 solution 1: 1/x^2y^(7/2) solution 2: ?

    asked by anonymous on August 30, 2018
  45. Math, Can someone check my answers?

    Can someone please check my answers? Tell whether the given equation has the ordered pair as a solution. 11. y = 6x;(3,16) 13. y = -4x; (-2,8) 15. y = x - 3/4; (2,1 1/4) Answers: 11. Not a solution 13. Has a solution 15. Has a solution

    asked by Phoebe on October 31, 2014
  46. College Algebra

    A mixture of 20% disinfectant solution is to be made from 13% and 23% disinfectant solution. How much of each solution should be used if 40 gallons of the 20% solution are needed?

    asked by Anonymous on September 21, 2017
  47. chem

    how much water would you need to add to 20.0 mL of 2.0 M NaCl to make a 0.10 M solution? try the formula c1V1 = c2V2 (where c1 is the initial concentration, V1 is the initial volume, c2 is the diluted concentration and V2 is volume you are trying to find)

    asked by beckii on May 22, 2007
  48. python 3

    For this option, first ask the user how many items there will be. ("How many items will there be?") Then, accept a name, a price, a name, a price, etc. until you have enough name-price pairs. You should then format the receipt so that each item shows up on

    asked by Anita on October 29, 2012
  49. physics helppp!

    The coeffcient of friction between the 7.9 kg mass and the table is 0.55, and the coeffcient of friction between the 5 kg mass and the table is 0.38. Consider the motion of the 37 kg mass which descends by the amount of y = 0.45m after releasing the system

    asked by kitt on March 1, 2007
  50. Math 222

    Please help me solve this equation? Sorry my addition and equal key does not work. -x^2-3x plus 5 equal 0

    asked by Nina-PLEASE HELP on April 27, 2015
  51. Health, Safety, and Nutrition

    good dental hygiene for young children is most dependent on: a) regular checkups every 6 months b) use of toothpaste containing fluoride c) proper tooth brushing technique d) elimination of sugars from the diet

    asked by Anonymous on May 8, 2011
  52. English Expressions

    Think of the loci method. In this room you can find 9 fixed things and number the things systematically from top to bottom and from left to right. Then you can recall what you have memorized with ease. You need to use the 3 3 3 system. After that prepare 9

    asked by John on December 12, 2007
  53. Visual Basic

    Alright, so I'm trying to code a program to where I can plug in two numbers and get a commission cost out of them. I'm having a hard time setting up the code, and I'm really looking for some guidance. I have this as the code so far: Public Class Form1

    asked by Reese on February 25, 2011
  54. Science

    A potassium permanganate solution containing 1.58g of KMnO4 per liter is added into 5 mL of an acidified iron (||) sulfate solution . Decolorizing of KMnO4 solution has been added . Calculate the mass of FeSO4 . 7H2O which has been dissolved in one liter

    asked by Hasan on February 11, 2019
  55. Chemistry

    A solution is prepared by placing 27.8 g of KCl in a 0.700 L volumetric flask and adding water to dissolve the solid, then filling the flask to the mark. What is the molarity of an AgNO3 solution if 22.1 mL of the KCl solution react exactly with 43.0 mL of

    asked by Ali on March 2, 2014
  56. chemistry

    A solution is prepared by placing 23.9 g of KCl in a 0.500 L volumetric flask and adding water to dissolve the solid, then filling the flask to the mark. What is the molarity of an AgNO3 solution if 27.9 mL of the KCl solution react exactly with 45.0 mL of

    asked by john on October 1, 2014
  57. chemistry help plz

    A potassium permanganate solution containing 1.58g of KMnO4 per liter is added into 5 ml of an acidified iron (||) sulfate solution. Decolorizing of KMnO4 solution has been added .Calculate the mass of FeSo4.7H2O which has been dissolved in one liter of

    asked by cynthia on January 17, 2016
  58. Chemistry

    you add 0.05ml of 0.10M agno3 to 4ml of 2.0 nacl it forms saturated solution of agcl ag+ + cl- using a saturated solution you set up ag | ag+( test solution after reaction) || ag+(1.0ml) | ag how do we calc the equilibrium of ag+ of the test solution after

    asked by Jeanine on March 30, 2011
  59. Chemistry

    1. What is the molar of a sodium bicarbonate solution prepared from 150 g of NaHCO3 in 150 mL solution? 2. What mass of glucose (C6H12O6) is needed to prepare a solution of 10 M, 5 L solution? 3. What volume in liters of a 4.0 M Ca(NO3)2 is needed to

    asked by Anonymous on May 4, 2015
  60. chemistry

    You want to measure the oxalic acid contents in 20 ml of a solution. To this end, you add 100 mmol sodium dichromate to the solution. Then you titrate the remainder of the dichromate with a Fe2+ solution of 1 mM, of which you need 11 ml. What was the

    asked by Anonymous on November 26, 2010
  61. writing

    Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial

    asked by Anonymous on September 8, 2013
  62. Pre-Algebra

    You and a friend work at an orange orchard. It takes you 40 minutes to pick all of the oranges from the tree. It takes your friend 60 minutes to complete the same job. How long will it take to pick all of the oranges from an orange tree if you work

    asked by Kyra on April 15, 2016
  63. English

    1. His method is simpler than the previous method. 1-2. His rule is much simpler than Ted's rule. 2. He is more active than Tom. 2-2. The girl is more lovable than Emily. 2-3. He is more tiresome than the boss. 2-4. He is tiresomer than the boss. 3. He is

    asked by rfvv on December 16, 2015
  64. physics

    if a particle has work of 8J and doubles its speed. how much work it has done? Can we still determine work in this problem without mass

    asked by eng on March 4, 2010
  65. Math

    12x+4y= 22 and 3x-8y= -10 What are the coordinates of x and y? Use the Substitution Method. ---and--- -5x+7y= -41 and 7x+y=25 What are the coordinates of x and y? Use the Substitution Method. Please help!!! =DDD

    asked by Catherine on January 25, 2008
  66. Differential Equations

    For the following initial value problem: dy/dt=1/((y+1)(t-2)), y(0)=0 a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why

    asked by Erica on January 31, 2013
  67. Project Management

    How does the responsibility matrix assist the project manager and resource managers to allocate resources to a project? Is this tool used by your Company? If so, is it effective? If not would it be effective if instituted? Why, what were/would be the

    asked by Zeta on November 23, 2006
  68. physics

    (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

    asked by Justin on July 28, 2013
  69. physics

    (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

    asked by Justin on July 25, 2013
  70. physics

    (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

    asked by Justin on July 28, 2013
  71. physics

    (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

    asked by Justin on July 26, 2013
  72. math

    Maria plans to fill the pots in her garden with soil and plant food. Maria has 8 1/4 quarts of soil and 1 1/2 quarts of plant food. Part A Each pot requires 3/4 quart of soil. For how many pots does Maria have enough soil? Show your work. Answer : 11pots

    asked by Sai on January 4, 2016
  73. Maths Urgent please help

    Sir Donald Bradman had scored 6996 runs in 69 completed test innings. he had one more innings to play. How many runs did he need to score in his final innings in order that his test batting average was greater than or equal to 100? You must write down the

    asked by Rebecca on May 16, 2013
  74. Algebra

    Once again, I have some confusing problems for math. If you know any answers, even if you only know one, please tell me the answer and walk me through it so I can actually understand how you get to it. Thanks! #1: A space craft travels at a speed of 8/10

    asked by Celina on November 5, 2008
  75. Biology 10

    Having studied biology, and listened to instructions, you recognize there is a method that could be used to decode and solve these cryptic messages. 1) TTACTCTCAAACGCCTTATGATCAAAC 2) ATAGTTGGATTTGTTAACGGACCAAAC THE CODE TABLE --------------- AAT = A ATT =

    asked by Lizzie on May 31, 2008
  76. algebra

    Solve for s in this equation. Depreciation. D=C-s/n This is my answer D-C=C-s/n-c D-C=-s/n -n(D-C)=-s/n*(-n) -nD+nC=s s=n(C-D) Please chack to see if this is correct Looks fine to me. A slightly shorter (by 2 lines) rearragement is: D=C-s/n D+s/n=C s/n=C-D

    asked by jessica on April 4, 2007
  77. Accounting

    Alteran Corporation purchased a machine for 1.5 million in 2006. The machine is being depreciated over a 10-year life using the sum-of-the-years'-digits method. The residual value is expected to be $300,000. At the beginning of 2009, Alteran decided to

    asked by Bobbi Loffredo on April 6, 2011
  78. chemistry

    an aqueous solution solution of sodium borate is sometimes used to to fire-proof wood. a. what is the molarity of 2.50 L of solution that contains 1.85 moles of sodium borate? b. what is the molarity of 45.0 L of solution that contains 6.78 kg of sodium

    asked by Jessica on April 7, 2013
  79. Chemistry

    Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a

    asked by Maggie on April 12, 2010
  80. Math

    A school hall has 30 rows of seats. Each row has 28 seats.How many seats are there. please show work out.

    asked by Jay on October 8, 2014
  81. calculus

    for the given functions f&g, find the following and state the domain of each result. f(x)=5x+4/7x-8; g(x)=2x/7x-8 a.(f+g)(x)= ? what is the domain? b. (f/g)(x)= ? what is the domain? Please show work

    asked by confused--please help on December 13, 2012
  82. MATH

    for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

    asked by Anonymos on September 4, 2012
  83. trig

    sin theta/2cos theta/2=1/2 sine theta show the identiy and work

    asked by sean on October 27, 2009
  84. college algebra

    For the given functions f and g find the following and state the domain of each. f(x)=sqrt x; g(x)=7x-3 A.what is the domain of f*g? B. What is the domain of f/g? Please show all work.

    asked by ladybug on November 8, 2012
  85. Math

    for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

    asked by Anonymos on September 4, 2012
  86. differential equations

    Search: A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine

    asked by mike on April 18, 2011
  87. Chemistry

    20cm3 of 0.500moldm-3 H2SO4 was consumed to neutralize 50cm3 of 0.400moldm-3 NaOH. The temperature of the system is increased by 36 degree C. The heat capacity of the calorie meter was 39 JK-1, and the heat capacity of the solution is 4.2JK-1. Find the

    asked by Emma on February 21, 2013
  88. math

    Please show me how to set it up and solve: You are making a rectangular table. The area of the table should be 10ft squared. You want the length of the table to be 1ft shorter than twice its width. What should the dimensions of the able be?

    asked by Jane on February 11, 2012
  89. Math

    Please show me how to set it up and solve: You are making a rectangular table. The area of the table should be 10ft squared. You want the length of the table to be 1ft shorter than twice its width. What should the dimensions of the able be?

    asked by Jane on February 11, 2012
  90. Math

    Complete each of the tasks outlined below. Task 1 You are starting a new business in which you have decided to sell two products instead of just one. Determine a business you could start and choose two products that you could sell. How much of your own

    asked by Jeremy on April 12, 2018
  91. Computer Science-Java

    Hi, I have to write a method that returns my first name, middle initial, and last name as a single String and call the method in java. So far, I have: public class ReturnName { static String fullname(String firstname, String middleinitial, String lastname)

    asked by Lisa on September 23, 2009
  92. Chemistry

    Suppose that 0.483 g of an unknown monoprotic weak acid, HA, is dissolved in water. Titration of the solution with 0.250 M NaOH(aq) required 42.0 mL to reach the stoichiometric point. After the addition of 21.0 mL, the pH of the solution was found to be

    asked by Val on March 12, 2010
  93. social studies

    explain or give a reason why slaves should have less hours to work.. REMEMBER YOU ARE THINKING LIKE A PERSON FROM 1815. NOTE: Please do not say because they work to hard and need to work less.. Be specific with your writing. Thank you

    asked by Wilfredo on April 27, 2013
  94. Physics

    The drawing shows two identical systems of objects; each consists of the same three small balls connected by massless rods. In both systems the axis is perpendicular to the page, but it is located at a different place, as shown. The same force of magnitude

    asked by Beth on April 1, 2012
  95. physics

    an antifreeze solution is made by mixing ethylene glycol (density= 1116 kg/m^3) with water. suppose that the specific gravity of such a solution is 1.0730. assuming that the total volume of the solution is the sum of its parts, determine the volume

    asked by kai on November 20, 2010
  96. English

    Thank you very much. Here is a summary I need to prepare for tomorrow. I also need to rephrase the last sentence. Thank you very much, Writeacher! 1) Though Craig Jones is an office worker, he is also a talented singer who dreams of becoming a star. 2) He

    asked by Henry2 on February 20, 2012
  97. science

    i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to

    asked by marie on April 16, 2011
  98. Calculus

    Find the maximum revenue using the following equations: R(x)=-x^2 +400x and C(x)=x^2+40x+100. What I've done so far is use R(x) and solve for x, which got me 0 and 400. Is that how you're supposed to start it? What happens next? (I apologize; I'm really

    asked by Lindsay on December 7, 2013
  99. math-volume

    I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi 4/3*pi*r3 = V Multiply by 3 3*(4/3)*pi*r3 = 3*V 4*pi*r3 =

    asked by julie on January 21, 2007
  100. chem

    i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to

    asked by marie on April 16, 2011

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