1. english

    7. Which sentence uses correct parallel construction? A. Most people enjoy ice cream and the plant grows. B. Anyone who is going to work here will have to be athletic, an intelligent person, and have a good sense of humor. C. You can either talk to the

    asked by jake on January 4, 2012
  2. english

    Which sentence uses correct parallel construction? A. Anyone who is going to work here will have to be athletic, an intelligent person, and have a good sense of humor. B. Most people enjoy ice cream and the plant grows. C. The painter wore glasses, gloves,

    asked by Heather-Alondra on January 30, 2013
  3. science

    Prepare a comprehensive directory (i.e. scrap book made of newspaper) of related resources with current news, information on forests, forest biodiversity including the people, plants and wildlife that call them home and why it is important to preserve

    asked by stefeena on August 18, 2011
  4. English

    1.Another Chinese method of irrigation is shown in the lower picture. 2.In flat areas, water is pumped out of the ground. 3.Farmers build ridges around the terraces so that the terraces can be flooded during the growing season. 4.As you can see, water from

    asked by Clayton on November 14, 2010
  5. Government

    Can someone please check my answer for me I'm having trouble on my government practice test. Which of the following is an example of checks and balances? A) Congress can override a presidential veto by two-thirds veto in each house. B) The legislative and

    asked by Sidney on January 15, 2017
  6. Social Studies

    Which situation is most likely to occur in a command economy then a market economy? A. A factory lays off unneeded work, B. A farm sells fruit off the side of the road, C. a union negotiates a better pay rate with employers, D. A failing railroad receives

    asked by IDK HELP on May 9, 2017
  7. Physics - check my work

    A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is 41 m/s, what is its speed (in m/s) when it hits the ground? Please check my work. I think it’s wrong, but I don’t know where

    asked by Lindsay on November 9, 2007
  8. History

    Drag the phrases to the correct boxes. Phrases may be used once or not at all. Roles of Monks and Nuns live a life of religious study and prayer**** provide advice to rulers on political matters work in libraries on manuscripts teach Latin raise a family

    asked by melanie Esperanza on April 30, 2019
  9. busniess communication

    Today, many employers expect interviewees to do more than just answer standard questions, including all of the following EXCEPT: A. defer to the hiring company to take control of the interview process. B. provide samples of the work they would likely do in

    asked by nicole on August 27, 2011
  10. english

    Which sentence shows correct punctuation of an introductory structure? When I ran across the tile I lost my balance and slipped. If I had stayed late on Friday, I could have caught up on my work. Well I delivered the memo to Mr. Jenkins last week. Miriam

    asked by someone on February 13, 2013
  11. Physicssssss

    At what rate must the cylindrical spaceship of Fig. 5-30 rotate (see Question 12 of the textbook), if occupants are to experience simulated gravity of g/6? Assume the spaceship's diameter is 44 m, and give your answer as the time needed for one revolution.

    asked by Haley on October 9, 2006
  12. Reading

    Which question should you ask during your first read of the multi draft reading process. A. What is the authors purpose in writing with piece B. How has this work increased my knowledge of a subject issues or event C. What evidence does the author presents

    asked by Anonymous on October 26, 2018
  13. physics

    One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J=

    asked by tom on October 16, 2008
  14. physics

    One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J=

    asked by tom on October 15, 2008
  15. complaint

    I would like to complain about the service we're getting here. I'm sure you guys work very hard, but the last few times I have posted a question on your forum I didn't get an answer until days later (not even from a Jiskha volunteer, a student), long after

    asked by irritated student on March 8, 2008
  16. chemistry

    An insulated beaker with negligible mass contains liquid water with a mass of 0.255{kg} and a temperature of 76.0{C} How much ice at a temperature of -19.9 C must be dropped into the water so that the final temperature of the system will be 32.2? Take the

    asked by dan on December 7, 2009
  17. Chem-Diprotic Acid

    Ascorbic Acid is an organic diprotic acid, H2A, that is found in many natural materials. KA1=7.94x10^-5 and KA2=1.62x10^-12. If you start with a 0.75 M solution of H2A, what is the concentration of ALL species in the solition at ph=3.8? I have no idea how

    asked by Matt on December 7, 2014
  18. Chemistry

    so i had to calculate the pH of a 100ml solution of .10M acetic acid (ka=1.8x10(-5) I came out to 2.87. But then, they want the pH if 50ml HCL is added. So i thought...Ka = x2/.15M, therefore the square root of .15M x 1.8x10(-5) = .00164(concentration). So

    asked by Kevin on October 20, 2011
  19. college chemistry

    Calculate the [CH3NH3+] of a 7.02×10-3 M solution of the weak base CH3NH2 (make an approximate calculation assuming that initial concentration is equal to the equilibrium concentration). Round your answer to 3 significant digits. CH3NH2 + H2O = CH3NH3+ +

    asked by sparkle on October 26, 2010
  20. chem

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.520. If a trial's absorbance is measured to be 0.275 and its initial concentration of SCN– was 0.00060 M, what is the

    asked by anonymous on April 10, 2008
  21. Chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the

    asked by Chem help on August 10, 2008
  22. chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.510. If a trial's absorbance is measured to be 0.250 and its initial concentration of SCN¡V was 0.00050 M, the

    asked by Gloria on April 10, 2008
  23. chem

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.520. If a trial's absorbance is measured to be 0.275 and its initial concentration of SCN– was 0.00060 M, the

    asked by Adam on April 11, 2010
  24. Chemistry

    What is the vapor pressure of the solvent in an aqueous solution at 25◦C of 0.29 m (molality) urea(CO(NH2)2), a nonelectrolyte? The vapor pressure of water at 25◦C is 23.76 Torr. Answer in units of Tor I want to use the mole fraction and multiply it by

    asked by ND on February 2, 2011
  25. Chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.530. If a trial's absorbance is measured to be 0.150 and its initial concentration of SCN– was 0.00070 M, the

    asked by Sam on April 9, 2008
  26. Chemistry

    Raoult's Law and Ionic or Organic Solutions At 55.0 C, what is the vapor pressure of a solution prepared by dissolving 62.8 g of LiF in 247 g of water? The vapor pressure of water at 55.0 C is 118 mmHg. Assume complete dissociation of the solute.

    asked by Saira on January 25, 2010
  27. Differentail Equations

    I cant figure out how to do this type of problem! Consider the first order differential equation y′+(x/(x^2−4))y=(e^x)/(x−9) For each of the initial conditions below, determine the largest interval a

    asked by Eric on June 6, 2015
  28. chemistry

    How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water? i'm not sure if iposted this already... sorry if i did :) Fe^+2 ==> Fe^+3 + e 2e + 2H^+ + H2O2 ==> 2H2O Multiply

    asked by Christine on April 22, 2007
  29. Chemistry

    In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical

    asked by Sikhulile on April 23, 2016
  30. physical chemistry

    1000 ml of oxygen at ntp passed through siemens ozoniser when the resulting volume was 888 ml at ntp .quantity of ozonised oxygen is passed through excess of potassium iodide solution calculate weight of iodine liberated?

    asked by Anonymous on April 13, 2013
  31. Biochemistry

    A buffer solution is prepared by mixing 2.50 mL of 2.00M sodium acetate with 3.30mL of 0.500M HCl and diluting the buffer with water to a final volume of 500.0mL. pK acetic acid: 4.76 what is ph of buffer? what is final concentration of buffer?

    asked by Maria on February 4, 2014
  32. chemistry

    Hi DrBob222, this is regarding my Determining Ka of Acetic acid lab I talked about on April 5, 2008. Refer to the volume of NaOH on your graph from question 2. Calculate half this volume and on your graph, find the pH when the solution was half

    asked by Sarah on April 6, 2008
  33. maths

    A car travels 40 miles per gallon of petrol. How many kilometres can it travel on 5 gallons of petrol? (From a KS2 CGP SATs question book). The solution in the book says 40/5 = 8 8x8=64 64x 5 = 320Km I get the 64x5 =320Km, but not the first bit. Can anyone

    asked by Anna on March 20, 2016
  34. Chemistry

    In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical

    asked by Sikhulile on April 23, 2016
  35. chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.520. If a trial's absorbance is measured to be 0.275 and its initial concentration of SCN– was 0.00060 M, what is the

    asked by Amy on April 8, 2008
  36. chemistry

    What will be the molarity of 335 ml of solutions containing 1.02 g of magnesium perchlorate. Here what i think divide 335/1.02 to get answer but i am not sure. Question 2:) how many ml of solute will be dissolved in a 435ml of 5.4%v/v of hci solution. I am

    asked by kody on July 18, 2014
  37. chemistry

    Oxalic acid (H2C2O4) can be used to remove rust according to the following balanced equation: Fe2O3 + 6H2C2O4 --> 2Fe(C2O4)33- +3H2O + 6H+ Calculate the number of grams of rust that can be removed by 5.00 x 102 ml of a 0.122M solution of oxalic acid.

    asked by amber on October 3, 2010
  38. Chemistry

    What is the pH of the solution created by combining 2.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted

    asked by Ashley on May 3, 2010
  39. Chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.550. If a trial's absorbance is measured to be 0.350 and its initial concentration of SCN– was 0.0010 M, the

    asked by Tom on June 28, 2008
  40. Chemistry

    If the 50.00mL sample from problem 3 above was titrated with EDTA,what volume of a 0.00420 M EDTA solution would be needed to reach the endpoint? (Your answer should be given in milliliters.) (Problem 3 found that .0000625 moles of calcium carbonate were

    asked by Alex on November 13, 2015
  41. Chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the

    asked by Anonymous on June 29, 2008
  42. Physics

    A capacitor is made from two 1.2 cm diameter coins separated by a 0.18 mm thick piece of paper (K = 3.7). A 6 V battery is connected to the capacitor. How much charge is on each coin? My solution: C= K * Permitivity * A/d = q/v I solved for q and got 1.2 X

    asked by BLESSED on February 6, 2008
  43. chemistry

    This refers to your archive question in 2014 Oct 30 at 4.58 posted by Ruzzle and replied by DrBob222. Small query on the solution , which states 1/6 of D atoms will go to form D2O18. Isn't it 2/6 since out of all 6 D atoms 2 is required to form D2O18.

    asked by senaka on March 13, 2017
  44. Chemistry

    A volume of 5oo ml of potassium sodium tartrate solution S1 of c1=0.21mol/l is to prepared. Determine the mass of hydrated potassium sodium tartrate of formula KNaC4H4O6.4H2O needed for this preparation .(molar atomic masses : H=1;C=12;O=16;Na=23;K=39)

    asked by Roro on February 23, 2014
  45. Chemistry

    A volume of 5oo ml of potassium sodium tartrate solution S1 of c1=0.21mol/l is to prepared. Determine the mass of hydrated potassium sodium tartrate of formula KNaC4H4O6.4H2O needed for this preparation .(molar atomic masses : H=1;C=12;O=16;Na=23;K=39)

    asked by Roro on February 22, 2014
  46. Chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the

    asked by John on June 20, 2011
  47. Science

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.550. If a trial's absorbance is measured to be 0.350 and its initial concentration of SCN– was 0.0010 M, the

    asked by Bobby on November 3, 2008
  48. Chemistry

    What is the pH of the solution created by combining 2.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted

    asked by Ashley on May 3, 2010
  49. arithematic

    A hat company is designing a one size fits all hat with a strap in the back that makes the hat smaller or larger. head sizes normally range from 51 to 64 centimeters. what absolute value inequality models the different sizes of the hat? graph the solution

    asked by tanusree on August 12, 2014
  50. chem

    A student weighs out a 13.7 g sample of Cr(NO3)3, transfers it to a 300 mL volumetric flask, adds enough water to dissolve it and then adds water to the 300 mL tic mark. What is the molarity of chromium(III) nitrate in the resulting solution?

    asked by dan johnson on April 10, 2011
  51. chemistry

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the

    asked by thuy on February 22, 2008
  52. Chemistry

    A volume of 5oo ml of potassium sodium tartrate solution S1 of c1=0.21mol/l is to prepared. Determine the mass of hydrated potassium sodium tartrate of formula KNaC4H4O6.4H2O needed for this preparation .(molar atomic masses : H=1;C=12;O=16;Na=23;K=39)

    asked by Roro on February 23, 2014
  53. Chemistry

    Assuming that Raoults law is followed what would be the vapour pressure of a solution formed when 40g of sugar (molecular mass 342g) is dissolved in 360ml of water at 25oC? At 250C,the vapour pressure of water is 20mm and the density is 1g/ml.

    asked by Aarohi on May 30, 2017
  54. chemistry 11 grade

    A piece of iron wire weighs 2.225g. It is dissolved in acid, which oxidizes the iron to iron(II), and made up to 250 mL. A 25mL sample required 31.0 mL of a 0.0185mol/L solution of potassium dichromate. Calculate the percentage of iron in the wire.

    asked by Farah on January 2, 2011
  55. 12th grade chemistry

    A piece of iron wire weighs 2.225g. It is dissolved in acid, which oxidizes the iron to iron(II), and made up to 250 mL. A 25mL sample required 31.0 mL of a 0.0185mol/L solution of potassium dichromate. Calculate the percentage of iron in the wire.

    asked by jerry on November 10, 2008
  56. Algebra

    You are taking a science course in which there will be four tests, each worth 100 points. You have scores of 94,100, and 92 on the first three tests. You must make a total of 360 in order to get an A. What scores on the last test will give you an A? The

    asked by Spacegazing on March 7, 2014
  57. Chemistry

    A volume of 5oo ml of potassium sodium tartrate solution S1 of c1=0.21mol/l is to prepared. Determine the mass of hydrated potassium sodium tartrate of formula KNaC4H4O6.4H2O needed for this preparation .(molar atomic masses : H=1;C=12;O=16;Na=23;K=39)

    asked by Roro on February 23, 2014
  58. can someone....

    In free-writing form, discuss your learning style and what kind of learner you are. can someone proof read this for me? I am a kinesthetic learner; I like to do hands on work like labs. I do best in a classroom where there is lots of movement; where I can

    asked by Anonymous on September 6, 2006
  59. Chemistry

    If 20mL of a 0.100 M NaOH solution are required to titrate 0.25 grams of an unknown acid, what is the equivalent mass of the acid? If the acid actually contains 3 moles of H+ per mole of acid what is the molecular mass of the acid?

    asked by Linda on February 4, 2014
  60. Chemistry

    Which solution will have the lowest pH? a. 0.10 M HClO2, pKa = 1.96 b. 0.10 M HCN, pKa = 9.21 c. 0.10 M HF, pKa = 3.19 d. 0.10 M HClO, pKa = 7.538 e. 0.00010 M HCl Does the lower the pka stronger the acid, means the lower the ph, so the answer is A?

    asked by Anonymous on November 29, 2015
  61. Art

    in modern printing technology what important type of plate is created a nickel salt solution? Copper plate •• Printing plate Master plate Money plate Correct this if you can

    asked by Tj on February 26, 2016
  62. Chemistry of Life Science

    1. In the introduction to this experiment, it states that you reacted 2.5 grams of salicylic acid with an excess of acetic anhydride, meaning that there would be a higher number of moles of acetic anhydride then salicylic acid, proportionally. Assuming the

    asked by Tracy on April 6, 2016
  63. Check my social studies(PLEASE)

    1.D 2.D 3.C 4.A 5.C 6.A 7.B 8.B 9.D 10.A 1. Which natural diasaster poses the most common challenge to central america and caribbean? A. tornadoes B. hurricanes C. floods D. drought 2. Corn cultivations alow the maya civilization to become powerful by A.

    asked by dalia on March 13, 2014
  64. physics

    A 0.005-kg bullet traveling horizontally with a speed of 1.00 103 m/s enters an 20.3-kg door, imbedding itself 10.6 cm from the side opposite the hinges as in the figure below. The 1.00-m-wide door is free to swing on its hinges. (c) At what angular speed

    asked by Amy on October 26, 2010
  65. Social studies

    Why were many countries still dependent on outside help from other nations, such as the United States, following their independence in the 1800s? A. The colonies were weak, and other nations promised to maintain military bases in their countries in order

    asked by Lee on December 19, 2018
  66. Social Studies

    Why were many countries still dependent on outside help from other nations, such as the United States, following their independence in the 1800s? A. The colonies were weak, and other nations promised to maintain military bases in their countries in order

    asked by BabyKittyKat on December 12, 2017
  67. English 9th grade

    1. Which of the following best describes science fiction? Answer:C The characters often face problems related to future tech advancements. 2. A literary analysis should contain a Answer: A thoughtful interpretation of a work 3. Which sentence below is

    asked by Lena Cronedy on October 24, 2018
  68. Social studies

    Describe the effects of the Great Depression on Georgians. A. Georgians were forced to barter rather than use cash.**** B. Women returned to the workforce. C. Georgians who worked in industry lost jobs and homes.*** D. It was easier for minorities to find

    asked by Amber on March 2, 2016
  69. English

    A nurse attended (a)...... her work place in time.(b)....... all her sincerity she was attending (c)....... the patient but she knew that her effort (d)........ keeping the patient alive might end (e)........ smoke.The doctors of board were shocked

    asked by Rifa on November 4, 2014
  70. physics

    Two point charges of 48 nC and -45 nC are held fixed on an x axis, at the origin and at x = 77 cm, respectively. A particle with a charge of 69 μC is released from rest at x = 49 cm. If the initial acceleration of the particle has a magnitude of 123

    asked by Anonymous on January 14, 2011
  71. C programming

    Help would be grately apreciated on this problem thank you! Backgound The employees can be any one of the two types: 1) Full-Time Salaried (FTS) and 2) Part-Time Hourly (PTH). Currently, there are totally 1050 FTS employees and 274 PTH employees in a

    asked by Bob on November 18, 2010
  72. physics

    Donkey experiencing a gravitational force of 2500 N is trying to pull a cart force due to gravity of a cart is 800 N) with a force of 400 N. The rope between the donkey and a cart is 30 degrees with the cart. The cart does not move. Show a diagram of all

    asked by John kgosiyagae on February 5, 2013
  73. PHYSÝCS HELP

    A satellite with a mass of 113 kg approaches a large planet at a speed vi,1 =10.3 km/s. The planet is moving at a speed vi,2 =14.6 km/s in the opposite direction. The satellite partially orbits the planet and then moves away from the planet in a direction

    asked by TUGÝ on March 30, 2012
  74. physics

    A satellite with a mass of 260 kg approaches a large planet at a speed vi,1 = 13.1 km/s. The planet is moving at a speed vi,2 = 10.2 km/s in the opposite direction. The satellite partially orbits the planet and then moves away from the planet in a

    asked by lanre on June 12, 2012
  75. science

    How is homeostasis maintained in the digestive system? Homeostasis is maintained by negative feedback - For example.....a thermostat controlling temperature. When the temp goes down, the thermostat senses it and turns on the heat. When it gets to hot,

    asked by j on March 27, 2007
  76. English

    1.Another Chinese method of irrigation is shown in the lower picture. 2.In flat areas, water is pumped out of the ground. 3.Farmers build ridges around the terraces so that the terraces can be flooded during the growing season. 4.As you can see, water from

    asked by Clayton on November 14, 2010
  77. pre-calculus

    R(x)=x^2+x-6 ________ x-3 1. find the domain and y-intercepts 2. find the x-intercepts 3. find the real solution of the equation 4. find the horizontal or oblique asymptotes 5. find the x-axis 6. plot the points

    asked by ladybug on September 29, 2012
  78. Chemistry

    If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? 5.94% KCl 8.55% KCl 14.4% KCl 16.8% KCl Can someone explain this to me? I don't want the answer I just want to know how to find it.

    asked by Acasia on February 20, 2017
  79. maths P5

    There were 335 children in a hall. 1/4 of the girls and 2/5 of the boys are swimmers. There are 110 swimmers in all. How many boys are there in the hall? (need non-algebra or model to solve, pls)

    asked by jiejie on September 10, 2011
  80. Math

    There are 4 brownies to share among 7 friends . How many brownies woukd each friend get ? A) solve this problem with a diagram and with a equation . B) describe the connections you see between the diagram and the equation

    asked by Anabelle on November 18, 2014
  81. math correction

    solve for x: 3x - 2y = 6 i need help in solving this: the possible answers has to be one of these: A)2y +6 divided by 3 b)3x -6 divided by 2 C) 2 + 2y D) 2/3y + 6 but how i keep trying and i don't get non of these. Add 2y to both sides of the equation.

    asked by jasmine20 on January 11, 2007
  82. Math, grade 10

    Two numbers add to 18. If you square the larger number and add 6 times the smaller number you get 163. What are the numbers. Solve with quadratic equation?

    asked by Lorrie on May 26, 2014
  83. Math

    There's a right triangle. There's an angle that measures 41 degrees. The hypotenuse is x, and the angle opposite 41 degrees measures 25 in length. How can I find what x is? The proportion set up is 25/x, but how do you solve for x?

    asked by Angie on May 11, 2009
  84. Math

    Write a proportion for each phrase then solve when necessary round to the nearest hundredth. 1.420 ft2 painted in 36 min;f ft2 painted in 30 min.

    asked by Janiah on April 2, 2016
  85. Probability

    Can someone please help me solve this problem? If the probability of a baseball player's getting it in one time at bat is 0.326, find the probability that the player gets no hits in 4 times at bat. Thank you!

    asked by Anonymous on February 7, 2015
  86. science

    solve for the amount of force exerted on an 8-kg ball rolling at 2m/s when it bumps into a pillow and stops in 0.5s. how mush force does the pillow exert on the ball?

    asked by saba on October 15, 2009
  87. algebraic expressions 5th grade math

    larry and martha each planted the same number of carrots seeds in their gardens.After 4 weeks,larry had c carrots and martha had 6 more(write an expression)please help me solve,thank you

    asked by vicki on January 16, 2013
  88. Geometry

    Point P is located on the segment between point A (1,4) and point D (7,13) The distance from A to P is twice the distance from P to D. What are the coordinates of point P? Just need to know how to solve but don't just leave an answer because there are 3

    asked by Lawyer on September 17, 2015
  89. math

    1.In what length of time will $500 be the interest on $2500 invested 5% per anum? Is this compounded. I will assume it is not. 0.05 x 2500 x #yrs = 500 Solve for #yrs.

    asked by nae on November 11, 2006
  90. maths

    a 10cm multiplied 10cm multiplied 10cm wooden block is painted red n all of it face. it is then cut into cubes, 10cm on each edge solve

    asked by tabitha on June 18, 2011
  91. 5th grade Math

    How do I solve this problem: At Carver Elementary, there are 355 students altogether. The School has 25 more female students than males. How many males and females does Carver have?

    asked by Johnathan on March 22, 2011
  92. Algebra 2

    Can someone please help me solve this absolute value equation? The equation is: -4|t-2|-9=-37 The thing I don't understand is how to isolate the absolute value (t-2). Do I divide both sides by -4 and then add both sides by -9? In that case I would get

    asked by Lola on October 27, 2015
  93. Trig

    Given 2secant^2 (theta) + 1 = 5 secant (theta), solve for (theta), to the nearest degree, in the interval 0 degrees is greater than or equal to (theta) which is less than 360 degrees

    asked by Courtney on May 12, 2010
  94. trig

    By what fraction of the period of f(x)=10 cos(7 x) has the graph of f(x) been shifted to obtain the graph of g(x)=10 cos(7x- pi/2). how do I approach this and solve for the fraction shift and the domain and range?

    asked by tamara on July 2, 2010
  95. third grade Math

    Julie made 206 cookies. 142 were chocolate chip. write the amount of chocolate chip cookies into a fraction. I am not sure how to solve this. Can anyone help me?

    asked by Sheila on November 29, 2016
  96. chem

    DrBob has given you the equation to use: k2 = [H^+][SO4^-]/[HSO4^-] and the values to substitute [H^+] = 0.01 + x [SO4^-2] = x [HSO4^-] = 0.01 - x k2 = 1.2 x 10^-2 you need to substitute these and solve for x. Remember that you are after 0.01+x [H^+] to

    asked by lyne on March 26, 2008
  97. Calculus

    Let f(x)=cosxsqrt(1+sinx). A. Let F(x)=the integral of f(x)dx and F(0)=5/3, find F(pi/2). I got 3.386 with U-substitution B. If G(x)=the integral of f(x)sinxdx and G(0)=1/3, find G(x). I got a reply to this but I did not understand the explanation. How

    asked by Anonymous on February 13, 2015
  98. Chem

    If the molar mass of monatomic deuterium (D) is 2.0141 g, then what is the density of diatomic deuterium (D2) gas at 25.0°C and 1.00 atm? I know the equation for density is: d=m/v What equation(s) do I need to use to solve this?

    asked by Ginger on April 19, 2008
  99. Algebra 2: Radicals URGENT!!

    Could some kind, saintly soul help me solve this problem? Simplify: 8w sqrt(48w^5) - x^2 sqrt(3xw^2) . . =8w(√16)(√3)(√w^4)(√w) - x^2(√3)(√x)(√w^2) =32w^3(√3w) - wx^2(√3x) not much of a "simplification" really 8w sqrt(16*3w^5) - x^2 w

    asked by Maria on April 27, 2007
  100. Science

    The question I have is based on air having a density of 0.0013(g/mL). What is the mass of 550mL of air? How do I use the formula Density = mass/volume to solve this problem?

    asked by Sierra on March 22, 2008

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