Questions Asked on
December 7, 2009

  1. Chemistry

    Consider the following reaction: 2NiO (s)--> 2Ni(s) + 2O2 (g) If O2 is collected over water at 40.0 C and a total pressure of 752 mmHg, what volume of gas will be collected for the complete reaction of 25.67 g of NiO? I am struggling to set up this

    asked by Charlie
  2. Chemistry

    Uranium-235 can be separated from U-238 by fluorinating the uranium to form UF6 (which is a gas) and then taking advantage of the different rates of effusion and diffusion for compounds containing the two isotopes. Calculate the ratio of effusion rates for

    asked by Charlie
  3. MATH ANALYSIS

    How do i do this? According to Kepler's Laws, planets have elliptical orbits, with the sun at one of the foci. The farthest Pluto gets from the sun is 7.4 billion kilometers. The closest it gets to the sun is 4.4 billion kilometers. Find the equation of

    asked by anonymous
  4. chem

    what's the electron domain and molecular geometry of SO3 with a charge of -2? electron domain= tetrahedral molecular= trigonal pyramidal right?

    asked by Anonymous
  5. Physics

    There are two situations in which it possible for a charged particle to be in a magnetic field but not experiencing a magnetic force. What are they? Given that Fm=qVBsintheta, I am going to say 1. If the particle is NOT in motion. 2. The direction of

    asked by Connor
  6. physics

    An astronaut whose mass is 80. kg carries an empty oxygen tank with a mass of 10. kg. The astronaut throws the tank away with a speed of 2.0 m/s. With what velocity does the astronaut start to move off into space?

    asked by Cory
  7. 7th grade

    what did the electrician say after fixing a light bulb at the top of the empire state building?

    asked by Tatiana
  8. english

    Did you like “Usher”? How successful was Poe’s use of Gothic devices in creating an atmosphere of dread?

    asked by joe
  9. Literature

    How would we tell a hero story today? What would be the setting, what would the enemy be, and what values would the hero embody? I need help coming up with a thesis...any ideas? thank you

    asked by Anonymous
  10. Physical Science

    A force of 400.0N is exerted on a 1,250N car while moving it a distance of 3.0m. How much work is done on the car.

    asked by Donna
  11. Poetry, Part 2

    1. Hopkins’s use of “seared,” “bleared,” and “smeared” is an example of A. metaphor. C. simile. B. assonance. D. alliteration. 2. A villanelle is A. a narrative poem written in blank verse. B. a formal poem using extensive repetition. C. a

    asked by Ari
  12. chemistry

    which do you think would be more dangerous near an open flame, an ionic or covalent compound?

    asked by maria
  13. U.S. History

    What challenges did the Radical Republicans face during the Reconstruction period? The Radical Republicans fought for political supremacy. They had two main goals: Break the power of wealthy planters who had long ruled the South. Ensure that freedman

    asked by B.B.
  14. Math

    Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play?

    asked by liz
  15. Social Studies

    Okay so the economy was booming in 1929 stocks were really high but then the stock market suddenly crashed why did that happen? How did the stock market suddenly just crash?(1929 Great Depression)

    asked by Sarah
  16. algebra highschool

    Factor completely 8c2 - 26c + 15

    asked by daniela
  17. Science

    Mountains produced by tensional stress, like the Teton Range in Wyoming, are called? a)folded mountains b)fault-block mountains c)canyons d)plateaus

    asked by george
  18. physics

    One end of a copper rod is immersed in boiling water at 100 degrees celsius and the other end in an ice-water mixture at 0 degrees celsius. The sides of the rod are insulated. After steady-state conditions have been achieved in the rod, 0.180 kg of ice

    asked by Amanda
  19. physics

    A 50. kg cart is moving across a frictionless floor at 2.0 m/s. A 70. kg child, riding in the cart, jumps off so that the child hits the floor with zero velocity. What was the velocity of the cart after the boy jumped?

    asked by Cory
  20. Science

    Broad areas of folded rock layers that resemble an upside-down bowl are called? a)domes b)basins c)horsts d)monoclines

    asked by george
  21. chemistry

    Calculate the pH of a 0.35 M solution of dimethylamine, (CH3)2NH.

    asked by donna
  22. physics

    A 50. kg cart is moving across a frictionless floor at 2.0 m/s. A 70. kg child, riding in the cart, jumps off so that the child hits the floor with zero velocity. What was the velocity of the cart after the boy jumped?

    asked by Cory
  23. Chemistry

    A 100.0 mL sample of 0.100 M formic acid, CHOOH, is titrated with 0.200 M KOH. Calculate the pH after 40.0 mL of 0.200 M KOH has been added.

    asked by John
  24. poetry

    wHAT IS THE MOOD AND THEME OF the storm by walter de la mare

    asked by ALEX
  25. physics-PLEASE ANSWER, it's due today!

    One end of a copper rod is immersed in boiling water at 100 degrees celsius and the other end in an ice-water mixture at 0 degrees celsius. The sides of the rod are insulated. After steady-state conditions have been achieved in the rod, 0.180 kg of ice

    asked by AE
  26. 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
  27. Chemistry

    What is the lattice energy of NaH? Use the given information below: Heat of formation for NaH = -56.442 kJ/mol Head of sublimation for Na = 107.3 kJ/mol Ionization energy for Na = 496.00 kJ/mol Bond dissociation energy for H2 = 435.9kJ/mol Electron

    asked by ChemProblem
  28. math highschool

    Factor completely 81a2 + 36a + 4

    asked by Anonymous
  29. mgt 380

    Why is it so difficult to measure the effectiveness of leadership in an organization? What criteria do you use to determine the effectiveness of leaders?

    asked by meshelle
  30. Science

    Mountains that have developed because of compressional stress—colliding plates that force rock layers upward—are called? a)folded mountains b)fault-block mountains c)canyons d)plateaus

    asked by george
  31. Physics ang. momentum

    A diver can reduce her moment of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. If she makes 2.0 rotations in 1.5s when in the tuck position, what is the percent change in her kinetic energy as she changes

    asked by Taylor
  32. math

    Mrs. Cason gives her class a spelling quiz every Monday, a math quiz every other Monday and a history quiz every third Monday . Sally smarty is in Mrs. Carson's class. She received a grade of 100% on all three quizzes today. How long will it be before she

    asked by kelvin
  33. chemistry

    how do you figure out how to Balance H2SO4+pb(OH)4=pb(SO4)2=H20

    asked by monique
  34. phys

    A disk rolls down a slope. It rotational axis is its center of mass. It is rotation at a constant angular speed making 34.0 full revolutions in a time interval of 3.30 s. 1)What is the rotational inertia of the disk if its mass is 11.7 kg, and its radius

    asked by ami
  35. Physics

    A 23 kg suitcase is being pulled by a handle that is at an angle of 22 degrees above the horizontal. If the normal force exerted on the suitcase is 185 N, what is the force applied to the handle? *** Objects NOT on an incline they are being pushed/pulled

    asked by Corey
  36. math

    you finish a two-mile walking race in 36.5 minutes. Write an inequality for the average speed of the walkers who finish after you did. (Average speed= distance/time)

    asked by Auri
  37. mgt 380

    Why is it so difficult to measure the effectiveness of leadership in an organization? What criteria do you use to determine the effectiveness of leaders?

    asked by meshelle
  38. world history

    The ideas of Enlightenment philosphers John Locke and Jean-Jacques Rousseau laid the foundations for modern Western democratic governments. What reforms expand democracy in newly industiralized societies?

    asked by Anonomous
  39. Earth Science

    To measure the strength of an earthquake, you can use either a______scale or______scale. A)Richter B)seismograph C)mercalli intensity part:2 A)moment magnitude B)seismogram C)mercalli intensity

    asked by george
  40. Business Maths

    Prior to the last weekly payroll period of the calendar year, the cumulative earnings of employees A and B are $99,350 and $91,000 respectively. Their earnings for the last completed payroll period of the year are $850 each. The amount of earning subject

    asked by Peaches
  41. math

    How do you write repeating decimals as fractions? There's directions in my book,but I don't understand it? For example, how would you write as a fraction 0.81 with the 81 repeating?

    asked by lily
  42. physics

    You push a 320 N trunk up a 20.0° inclined plane at a constant velocity by exerting a 213 N force parallel to the plane's surface. (a) What is the component of the trunk's weight parallel to the plane? (b) What is the sum of all forces parallel to the

    asked by Lisa
  43. phys

    A toy airplane of mass 0.159 kg is tied to the ceiling with a string. The airplane moves in a horizontal circle of radius 2.97 m, with a constant speed of 1.51 m/s. What is the angle the string makeswith the vertical?

    asked by stacy
  44. Science

    Which scale measures the amount of damage after an earthquake? Richter scale Mercalli intensity scale moment magnitude scale seismograph scale

    asked by george
  45. algebra

    Factor completely 4a2 - 8a - 5 please help i don't get this at all!!!

    asked by yelenaS
  46. PreCalc

    Naturalists find that the populations of some kinds of predatory animals vary periodically. Assume that the population of foxes in a certain forest varies sinusoidally with time. Records started being kept when t = 0 years. A minimum number, 200 foxes,

    asked by Jo
  47. government??

    What would happen if Judiciary Review didn't exist. That is what would the differences be today in Judicial Review hadnt come into place from the Marbury v madison case. I mean,, i know that obviously all these cases would have never been decided. but what

    asked by Katia
  48. PreCalc

    h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 2 5 7 6 7 ok this is what i mean. For exmaple take this problem that I asked for help with before Naturalists find that the populations of some kinds of predatory animals

    asked by Jo
  49. algebra 10 grade

    Factor this expression completely 36y2 - 1

    asked by jacob
  50. physics

    The roof on a house rises 1.50 m over a horizontal diestance of 3.50 m. A 72.9-kg roofer stands on the roof. Is the frictional force that keeps the roofer from slipping equal in magnitude to F perpendicular or F paralell? What is its magnitude?

    asked by Corey
  51. Law & Ethics

    I am working on a research paper for a course I am taking through Penn Foster. I have to answer several questions but I don't know if I am supposed to write the questions on the report, or just answer them ..you know..using the correct paragraph format;

    asked by Jamie
  52. History

    What body of water that is hounded by Japan, Chaina,and Taiwan ?

    asked by Suraj
  53. music

    who is the odd one out Hayden,Mozart or Beethoven

    asked by ....
  54. science

    Little help needed with moles... Given 4.14x10 to the 23rd formula units of Na2SO4, ho many moles of Na2So4 would you have. Just a little confused as to solving this, so if you can explain how it is done also, that would really help.

    asked by Briana
  55. Science

    Broad areas of folded rock layers that resemble a bowl turned right-side up are called? a)domes b)basins c)horsts d)monoclines

    asked by george
  56. math

    Mrs. Cason gives her class a spelling quiz every Monday,and a history quiz every third Monday . Sally smarty is in Mrs. Carson's class. She received a grade of 100% on all three quizzes today. How long will it be before she again has to take all three

    asked by kelvin
  57. Physics

    Given: G = 6.67259 × 10−11 Nm2/kg2 Mimas, a moon of Saturn, has an orbital radius of 1.8 × 108 m and an orbital period of about 22.6 h. Use Newton’s version of Kepler’s third law and these data to find the ma

    asked by sharon
  58. business

    Identify areas of vagueness and ambiguity and discuss how you might clarify the e-mail message using the writing principles addressed in the text. Below Hi class, I don’t have a lot of time to explain but off the top of my head answer is as a reader

    asked by tri
  59. economics

    The Midnight Hours, a local nightclub earned 100,000 in accounting profits last year, this year the owner, who had invested 1,000,000 in the club, decide to close the club. What can you say about the economic profit (and the rate of return) in the

    asked by Allan
  60. Chemistry

    Are both the electron domain geometry and molecular geometry of HCN linear?

    asked by Trish
  61. 7th grade History

    By comparing,what is different from Ancient Egyptian and Modern Egyptian beliefs of the gods?

    asked by KiKi
  62. Physics

    A car weighing 1.1*10^4 N is parked on a 35 degree slope. Find the force tending to cause the car to roll down the hill. What is the force the car exerts perpendicular to the hill?

    asked by Corey
  63. algebra 1

    Factor this expression completely 9a4 - b2

    asked by jacob
  64. Social Studies

    What are the four main natural resources in the united states? and what does silt do to help farmland?

    asked by Madison
  65. Literature

    In Charles Dickens' "A Christmas Carol", what was the reason for Marley's jaw dropping when the bandage was removed? (Stave 1)

    asked by Kim
  66. physics

    A large boulder sits at the top edge of a cliff, this is boulder A. A smaller boulder sits on a ledge half way down the same cliff, this is boulder B. Which boulder has the greatest potential energy, A or B?

    asked by lexie
  67. accounting

    Excel document (2-3 pages) Details: Incorporate an ESO plan into a company's valuation. The c9mpany is Starbucks For your company (the company you used for the first two Units), incorporate the effect of the Employee Stock Option (ESO) plan into the common

    asked by jaquez
  68. college Math

    A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation

    asked by Michelle
  69. Chemistry

    My brain refuses to wrap around titration. Problem: Given 150.0 mL of a 1.05 M HCl solution, how many milliliters of a 2.50 M Al(OH)3 solution are required to neutralize the HCl? I think the balanced formula is 3HCl + Al(OH)3 - AlCl +3H20 but that's as far

    asked by Wolfmaid
  70. Chem

    Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute

    asked by Matt
  71. Chemistry

    In a certain reaction, 300.23 grams of solid aluminum sulfide combine with unlimited aqueous silver nitrate. How many moles of aluminum sulfide react? How many moles of each product will be produced? First of all, is the reaction a double replacement or

    asked by Paula
  72. 5th grade

    A group of goats and ducks have a total of 99 heads and legs among them. There are twice as many ducks as there are goats. How many are there of each?

    asked by Austin
  73. Calculus

    f(x) = 6e^(-5x) ln(x), find f'(3)?

    asked by Z32
  74. Soc/110

    What new challenges in collaboration and teamwork does technology present? Provide examples

    asked by Courtney
  75. Algebra

    Factor completely 4y2 + 25y + 6 please explain can't understand

    asked by alieS
  76. accounting

    You are provided with the following transactions that took place during a recent fiscal year. Complete the table indicating whether each item (1) should be reported as an operating (O) activity, investing (I) activity, financing (F) activity, or as a

    asked by steven
  77. Algebra

    I have 2 questions in math that I am not quite sure about... 1. Mandy begins bicycling west at 30 mph at 11 A.M. If Liz leaves from the same point 20 min. later bicycling west at 36 miles per hour, when will she catch Mandy? 2. A mixture of 10% acid and

    asked by Becca
  78. math/probability

    If two fair dice are rolled, find the probability of a sum of 6 given that the roll is a "double". How do I do this?

    asked by Brian
  79. Pre Calc

    please h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 2 5 7 6 7

    asked by Jo
  80. physics

    When a horizontal force of 7N acts on a block on a resistance free surface, it produces an acceleration of 3.5m/s^2. suppose a second 4kg block is dropped onto the first. what is the magnitude of the acceleration of the combination if the same force

    asked by Christine
  81. Chemistry

    How many electron domains are about the central atom if given the following angles: 90: 6 electron domains 109.5: 4 electron domains 120: 3 electron domains 180: 2 electron domains Correct?

    asked by Trish
  82. Chemistry

    What is the lattice energy of NaH? Use the given information below: Heat of formation for NaH = -56.442 kJ/mol Head of sublimation for Na = 107.3 kJ/mol Ionization energy for Na = 496.00 kJ/mol Bond dissociation energy for H2 = 435.9kJ/mol Electron

    asked by LatticeEnergy??
  83. math

    Two automobile dealers, A and B, had the same car which was listed at $18,000. Dealer A offered a $1200 rebate and would negotiate a further 8% discount after rebate. Dealer B offered an 8% discount and would negotiate a further $1200 rebate. (a) Which

    asked by poo
  84. business

    • Prepare a 700- to 1,050-word paper in which you define the four functions of management (planning, organizing, leading, and controlling). In your paper, include an explanation of how each function relates to your own organization. • Cite at least two

    asked by Anonymous
  85. Algebra

    Need a formula; the product of two consecutive integers is 41 more than their sum. Find the integers.

    asked by Nelson
  86. physics

    The atoms in gas ( gas constant R=8.31 J/mol K) can be treated as classical particles if their de Broglie wavelength L is much smaller than the average separation between the particles d. Consider monatomic helium gas (mHec^2 = 3727 MeV, molar mass 4g/mol)

    asked by Bun
  87. Physics

    A cathode ray tube operates at 80 kV with a current of 875 uA. Calculate the a)Intesity (# of photons per second f the x-rays b)Minimum wavelength of the x-rays produced by the CRT thanks in advance

    asked by ALan
  88. physics

    The atoms in gas ( gas constant R=8.31 J/mol K) can be treated as classical particles if their de Broglie wavelength L is much smaller than the average separation between the particles d. Consider monatomic helium gas (mHec^2 = 3727 MeV, molar mass 4g/mol)

    asked by Bun
  89. math

    A flying saucer filled with space aliens landed in my front yard! After the entire crew had filed out of their spaceship, I happened to count their heads and feet. I saw a total of 91 heads and 124 feet. It was clear that their leader was a purple creature

    asked by Katherine
  90. Miami Dade

    X-ray pulses from Cygnus X-1, a celestial x- ray source, have been recorded during high- altitude rocket flights. The signals can be interpreted as originating when a blob of ion- ized matter orbits a black hole with a period of 7.84 ms. If the blob were

    asked by sharon
  91. Physics

    X-ray pulses from Cygnus X-1, a celestial x- ray source, have been recorded during high- altitude rocket flights. The signals can be interpreted as originating when a blob of ion- ized matter orbits a black hole with a period of 7.84 ms. If the blob were

    asked by sharon
  92. math

    Tara was out selling girl scout cookies. she noticed that the caramel cookies were the most popular, with lemon cookies being the next most favored. She actually sold three boxes of caramel cookies. If she sold 63 boxes of caramel cookies were sold?

    asked by afo
  93. Pre-Calculus

    Solve the triangle. Round to the nearest tenth. B=54deg a=42 c=6.5 1. I found length of b using law of cosine and got 36.2 2. Using side of b, I used the law of sine to get angle A = 28.2 3. I added B+A and subtracted from 180 to get angle C = 127.8 which

    asked by Vincent
  94. Honors Chemistry 101

    Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute

    asked by Matt
  95. Algebra

    Factor find the zeros x^5-9x^3 Find the quotient and remainder using long division (x^3-x^2-2x+6)/(x-2) Use sythetic division and remainder therem to evalulate P(c) Let P(x)= 6x^7-40x^6+16x^5-200x^4-60x^3-69x^2+13x-… *Calculate P(7) by (a) using

    asked by HELpppppppp
  96. math

    if you have 15 stones and you have 5 colums and 3 rows and there's 8gray stones and 7 white stones what is the rule.

    asked by tyu
  97. Creative Writing

    Ok, so for the assignment I posted earlier: journal response on a person who seems ill-suited to his or her job for Cause and Effect essay, I asked my teacher how I should write it. She said that, I could focus on the cause of my assumptions about this

    asked by y912f
  98. physics

    How do you determine strain and stress of a spring when given force, length, and change in length?

    asked by Alex
  99. math

    Factor completely what does that mean 25a2 - 30a + 9

    asked by daniela
  100. Math - Probability

    A developer can buy a piece of property that will produce a profit of $16,000 with probability .7, or a loss of $9000 with probability .3. What is the expected profit?

    asked by Stephanie
  101. english

    what word can get from these letter (Dolurf) with a christmas meaning behind it

    asked by Anonymous
  102. Earth Science

    Where a major earthquake has happened in the past, but not in a while, is called a seismic? a)gap b)wave c)fault d)scale

    asked by george
  103. philosophy

    What are key differences between the ontological, teleological, and cosmological arguments? Identify the philosopher who you think best supports his or her argument. Explain your answer briefly.

    asked by Anonymous
  104. algebra 1

    Factor completely 36x2 + 60x + 25 Factor completely 4n2 + 28n + 49

    asked by jacob
  105. spanish

    what does "voy a la escuela" mean?

    asked by taylor
  106. physics

    for this question A bullet is fired from a rifle that is held 1.8 m above the ground in a horizontal position. The initial speed of the bullet is 1120 m/s. Find why is the equation just (.5)(9.8)(t^2)=1.8 why don't we have to take in account for initial

    asked by Jordan
  107. Physics

    If you have a hydraulic lift and you know the density of the oil inside, the area of the cylinder and the area of the piston and the force that needs to be applied to lift as certain weight and the weight of that object...how do you find the height that

    asked by Sara
  108. social studies

    cooled _______ magma that reaches earths surface, is what created the Mid Atlantic Ridge.

    asked by dakota
  109. Soc/110

    What collaboration techniques may facilitate collaboration? What technologies may aid collaboration? Provide examples.

    asked by Courtney
  110. Physics

    The atoms in a gas (gas constant R=8.31 J/mol-K) can be treated as classical particles if their de Broglie wavelength ă is much smaller than the average separation between the particles d. Consider monatomic Helium gas (mHec2 = 3727MeV), molar mass

    asked by Bun
  111. Marketing

    Imagine that you are a mentor to a new employee at a marketing firm. The new employee is having trouble understanding what the term market communication really means. Using what you have learned, explain to the new employee how marketing communication can

    asked by jckkoo
  112. chemistry

    An engine goes through the following cycle with 2.60 moles sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III. an adiabatic compression from point c to point a. We

    asked by dan
  113. Algebra

    I have 2 questions in math that I am not quite sure about... 1. Mandy begins bicycling west at 30 mph at 11 A.M. If Liz leaves from the same point 20 min. later bicycling west at 36 miles per hour, when will she catch Mandy? 2. A mixture of 10% acid and

    asked by Becca
  114. evironmental and social studies

    explain with a diagrammatic illustration,the concept integration as used in social studies and discuss four of its advantage

    asked by haite
  115. 8th grade

    need help thank-you translate the verbal phrase into an inequality, then solve the inequality and graph your solution, the product of 6 and the difference of 6x and 3 is less than or equal to the product of -2 and the sum of 4 and 8x

    asked by Zach
  116. English

    When you do an internal citation, following a direct quote, do you put a period after the quote and another after the citation, or just one at the end of the citation?

    asked by marcie
  117. Science

    With the help of three seismograph stations, the epicenter of an earthquake can be located by a process called convection condensation triangulation intersection

    asked by george
  118. physics

    Two events in S are separated by a distance D=x2 - x1 and a time T = t2 - t1 . a) Use the Lorenrz transformation to show that in frame S' , which is moving with speed v relative to S, the time separation is t2 - t1 = ã(T - vD/c2 ). b) Show that the events

    asked by kim
  119. Physics

    I just wanna check if i am right. A car is traveling with a velocity of 42.3 m/s and has a mass of 2183.0 kg. Find the Ek of the car. i used the ek=1/2mv^2 and plugged everything in to get a total of 1953010.035 J .. is that right?

    asked by Carl
  120. Science

    Broad areas of folded rock layers that resemble an upside-down bowl are called? domes basins horsts monoclines

    asked by george
  121. PreCalc

    y =( (C-A)/2 ) sin( (X - (A - ( (C - A)/2 ) ) )( pi/(C-A) ) ) + (B - ( (B-D)/2 ) How do I rearange this for this equation for the all of the variables including A, B, C, D, X were pi is the greek leter pi if you didn't notice this is the general formula

    asked by Jo
  122. algebra Polynomials

    Factor this expression completely 36y2 - 1

    asked by Anonymous
  123. probability/math

    Three cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that the second and third cards are kings if the first card was not a king?

    asked by Brian
  124. science

    2) A roller coaster is at the top of a 98.2 m hill and has a mass of 1831.0 kg. It is traveling at a velocity of 23.7 m/s. What is the coaster car's TOTAL energy? I used the eg=m*g*h equation and got a value of 1762081.16 .. i then used the ek=1/2mv^2 and

    asked by Mary
  125. science

    compare the three types of bonds based on what happens to the valence electrons of the atoms

    asked by Anonymous
  126. MATH

    Tara was out selling girl scout cookies. She noticed that the caramel cookies were the most popular, with lemon cookies being the next most favored. She actually sold three boxes lemons cookies for every four boxes of caramel cookies. If she sold 63 boxes

    asked by afo
  127. Science

    Concidering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient?

    asked by Lori
  128. org. chem.

    Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via simple distillation? I'm not sure about this because I thought the difference between fractional (what was done) and simple

    asked by CMM
  129. Math

    Hello what is communicative and distributive law? thnx

    asked by Rebecca Bhutto
  130. Calc 3

    The actual span of the base of the dome is 143 feet. 1) Use cylindrical coordinates to write the surface of the dome as a function of the distance from the center of the base; that is find z = f (r) . 2) Use your function to find the height of the dome;

    asked by joe
  131. Bio

    Increase of nutrients lower ability of liver to produce glucose? Is that correct?

    asked by Sam
  132. british literature

    Using an example from Macbeth, explain Shakespeare's use of chronographing in Macbeth. I understand that chronographing is the study of past events but I don't understand how that relates to Macbeth.

    asked by jacob
  133. math grade 10

    simplify (log 5√5 + log √3 + log 45)/(log 15).

    asked by AT
  134. english

    what word can you get from the letters (egoorcs) has to do with christmas

    asked by gordon
  135. faith christian academy

    what is a ratio?

    asked by neesha
  136. math

    The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?

    asked by student
  137. math

    What multiplication fact can be found by using the arrays for 2x9 and 5x9?

    asked by Daniel
  138. 8th grade

    wich of the following stated that the United states would not tolerate European intervention in Latin America?

    asked by Anonymous
  139. U.S History

    Each quote is either from the Constitution (what part of it?) or the Bill of Rights (which amendment?) 1."He has endeavored to prevent the population of these states: for that purpose obstructing the Laws for Naturalization of Foreigners" 2."For cutting

    asked by Lauren
  140. english

    what word can you from these letters (Dolurf)

    asked by Anonymous
  141. english

    Flattery is as important a machine as the lever, isn't it? Give it a proper place to rest, and it can move the world."

    asked by Princess
  142. English

    1. You killed you. 2. You killed yourself. (#2 is right. #1 is not right? Right?) 3. Take care of you. 4. Take care of yourself. (What about #3 and #4? Which one is right in basic grammar?)

    asked by rfvv
  143. world history

    Enlightenment philosophers and reformers criticized the great inequalities that existed in society and believed that thought reason, a better society was possible. They called for social equality, abolition of slavery, prision reform, and improvements in

    asked by Savannah
  144. Precalculus

    Find the vertex, focus, and axis of symmetry of the parabola x^2-10x-8y+29 = 0. ==> I do it over and over and over, but I keep getting the same answers of (5,4) for the vertex, (5,6) for the focus, and x = 5 for the LOS, but according to this one website,

    asked by Emily
  145. Science

    Deep within the earth, the process of mantle___?___drives plate tectonics A)convection B)subduction C)currents D)condensation

    asked by george
  146. English

    1. Shut the door behind you. 2. Shut the door behind yourself. (Which one is correct?) 3. I looked about me. 4. I looked about myself. (Which one is correct?) 5. We have the whole week before us. 6. We have the whole week before ourselves. (Which one is

    asked by rfvv
  147. Physics

    I don't know where to begin with this one because I don't recall my teacher giving us a formula for it. A baby carriage is sitting at the top of a hill that is 22.1 m high. The carriage with the baby weighs 15.8 N. What is the Ep for the carriage and baby

    asked by Carl
  148. accounting

    Les fleurs a boutique in paris france had the following accounts in its accounting records at december 31, 20x2. compute the following for les fleurs during 20x2 net sale cost of goods sold net income balance sheet december 31, 20x2 statement of owners

    asked by Gia
  149. algebra 10 grade

    Question #1 Factor this expression completely x2 - 9 ----------

    asked by Anonymous
  150. sociology

    • Review the following scenario: You work for a formal organization in the United States that has an open, flexible organizational structure as described in Figure 5-5 on p. 126 of Society. You have a relative, Micah, who works for a formal organization

    asked by Anonymous
  151. math

    how do u do 4% of 130?

    asked by Uhan
  152. Math

    Hosni gave the following argument that -(a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect, explain why not. - (a + b) = (-1) (a + b) = (-1) a + (-1) b = -a + -b

    asked by Ron
  153. math

    how do i simplify 2 and 2over 5 times 9 and1over 6?

    asked by jamia
  154. Org. Chem.

    Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via simple distillation? I'm not sure about this because I thought the difference between fractional (what was done) and simple

    asked by CMM
  155. Grade 2 english

    What word is made up by using the alphabets -usrfcfy

    asked by MONA
  156. Soc/110

    How does computer-mediated collaboration enhance team performance? Provide examples.

    asked by Courtney
  157. Social Studies

    The country that border the Pacific ocean are sometimes called the ?

    asked by lolly
  158. Science

    An energy convesion makes the telephone a useful machine. Explain.

    asked by Michelle
  159. Physical Science

    Can someone give me two examples of mechanical energy and one example nuclear energy - thanks.

    asked by Carol
  160. english

    what word can you get from the letters (egoorcs) has to do with christmas

    asked by Anonymous
  161. geometry

    I HAVE A BARGE THAT IS 1000 SQUARE FEET AND 8 INCHES DEEP. I NEED TO FIGURE OUT THE VOLUME.

    asked by Heather
  162. Financial Management

    prices of existing bonds move______as market interest rates move_______.

    asked by Ann
  163. Calculus

    Integral of x sq/(1+x sq) dx I am not sure how to do this, am i supposed to do partial fractions to break it up? Or is it just some simple substitution?

    asked by O_o Rion
  164. math

    How can I simply ratios like 44, 166 Is there a trick to simplifying

    asked by Christian
  165. english

    what word can you from these letters (Doluf)

    asked by Anonymous
  166. Biochemistry

    A cell has a resting membrane potential of -66 mV and a membrane Cl ion equilibrium potential of -24.0 mV If a neurotransmitter acts on the cell membrane to open channels that are specifically permeable to Cl, will the membrane potential of the cells

    asked by Sean
  167. marketing

    What do you understand by the term product mix? What role does it play in the marketing of a product?

    asked by s
  168. physics

    Hi!could anyone help me please, Thank. Gas in a container is at a pressure of 1.3 atm and a volume of 1.0 m3. (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume? (b) What is the work done on the gas if it is

    asked by Chan
  169. Algebra

    Find the slope of the line containing the points (-9, 1/2) and (-5, 1/2)

    asked by matt
  170. Biology

    What is life

    asked by Ahsaki
  171. algebra

    a roof rise 2.7 feet vertically and 8.2 feet horizonatally. what is the grade of the roof?

    asked by jj
  172. math

    name each number in two different ways 1. 300 2. 2,400 3. 67,000

    asked by mellisa
  173. geometry

    What is the relationship between the number of vertices of a regular polygon and the number of summetry lines of the polygon?

    asked by Astrid
  174. algebra

    solve for v v=-1/3t + 4 with t=6

    asked by Blake
  175. physics

    There is a great deal of ice floating on the ocean near the north pole. If this ice were to melt due to global warming, what would happen to the level of the oceans? A.Rise B.Fall C.Remain the same water is slightly more dense than water, but when the ice

    asked by Sarah
  176. Physics

    A roller coaster is at the top of a 98.2 m hill and has a mass of 1831.0 kg. It is traveling at a velocity of 23.7 m/s. What is the coaster car's TOTAL energy? I took the eg=1/2mv^2 and plugged in (1831)(9.8)(98.2) and got 1762081.16 I then took the ek=

    asked by Carl
  177. math

    A student claims that the equation Ö(-x) = 3 has no solution, since the square root of a negative number does not exist. Why is this argument wrong?

    asked by alicia
  178. Soc/110

    What are the elements of a collaborative team meeting? Provide an example of each element and explain its importance to collaboration

    asked by Courtney
  179. crtical thinking

    How does critical thinking affect you as a reader and writer? How can thinking critically improve your writing?

    asked by tri
  180. eng

    unscramble--- usrfcfy

    asked by person
  181. Finance

    If you were considering investing in a company, which financial ratios would you find most useful?

    asked by Terri
  182. science

    why is the angle of rays of sunlight so important in determining the amount of energy collected by the earth

    asked by j
  183. org. chem.

    When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

    asked by CMM
  184. physic

    the useful carry of a racket is as 5% of all its mass,the other part is fuel.if the racket start moving from the static state, without the effect of F(est) [esternal forces] how is the finalize velocity if the velocity Usc is 5 km/s

    asked by kate
  185. english

    what word can you get from the letter (toeeltsim)that has to do with christmas

    asked by Anonymous
  186. physical science

    If the larger boulder has a mass of 50 kg and a height of 150 m from the ground what is its GPE?

    asked by lexie
  187. english

    An opinion sentence that uses the word empty?

    asked by Jesse
  188. math

    Solve the equation. k=12+9

    asked by Terri
  189. physics

    A prep cook spins a salad spinner 25.0 times in 10.0 seconds (at a constant rate) and then stops. The salad spinner rotates 8.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration. What is the angular

    asked by ami
  190. 8th grade

    which of the following stated that the United states would not tolerate European intervention in Latin America?

    asked by Anonymous
  191. Math

    How do I find the answer of 7(5.2)?

    asked by Jennifer
  192. math 10 grade

    4y2 + 25y + 6 can you explain how to do step by step thanks Factor completely

    asked by Amanda
  193. vocab

    what does intercede means ?

    asked by jasmine
  194. reimbursement

    Under major medical insurance, $250 must be paid before the company assumes liability. Who is responsible for paying this $250? A. The policyholder C. The provider B. The insurer D. The third-party payer

    asked by Anonymous
  195. math

    How can I simply ratios like 44, 166 Is there a trick to simplifying

    asked by Christian
  196. algebra

    find the slope for 8x-y=8

    asked by jj
  197. english

    what christmas word can i spell using the letters toeeltsim

    asked by tisha
  198. Astronomy.[Months]

    When were the calendar months named?

    asked by Annia
  199. english words

    What english word can be made when you un scramble the letters "DOLURF"

    asked by Anonymous
  200. Science

    A baby carriage is sitting at the top of a hill that is 22.1 m high. The carriage with the baby weighs 15.8 N. What is the Ep for the carriage and baby in relation to the bottom of the hill? I know the equation for potential energy=m*g*h but what how would

    asked by Mary
  201. Org. Chem.

    When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

    asked by CMM
  202. The Bell Curve

    In The Bell Curve, Richard Herrnstein and Charles Murray argued that the nation cannot come to terms with its massive social problems until it confronts the role of intelligence. "How bright someone is, is the single variable that has the largest impact on

    asked by jenna
  203. math

    Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation

    asked by Anonymous
  204. math

    thanks know i no what to do

    asked by Katherine
  205. English

    1. He killed him. 2. He killed himself. (Can we use both sentences. I think they have different meaning.) 3. You should take care of yourself. 4. You shoud take care of you. (Are both OK? Is #4 wrong?) 5. He looked at himself in the mirror. 6. He looked at

    asked by rfvv
  206. math

    As you travel to new planets in the space age, you discover a culture that does not use the digits 2,5,7,or 8. They would like to use 3-digit numbers for their zip codes, but they have superstition that beginning a zip code with zero brings bad luck to the

    asked by tao
  207. Math

    30 - 6x

    asked by Darrian Black
  208. british literature

    explain shakespeares use of chronographing in macbeth

    asked by jacob
  209. physical science

    If the larger boulder has a mass of 50 kg and a height of 150 m from the ground what is its GPE?

    asked by lexie
  210. pre algebra

    1/2 +(2/3 / 3/4) +(4/5 x 5/6)=

    asked by Sandra
  211. college

    How can you use the study techniques recommended for your personality type and strongest intelligence(s) to function best in a distance learning environment? Which techniques can you use to improve less- developed personality areas or intelligences?

    asked by siri
  212. Science

    When the Sun is directly over the equator, we experience either _ or _ ? I'm not getting this. Do they mean what two seasons?

    asked by Audrey
  213. RESEARCH AND EVALUATION II

    A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation

    asked by Michelle
  214. literature

    the best in this kind are but shadows is

    asked by jean
  215. AED 201

    I need some help finding four school related court cases, two where the teachers are defendants and two where the students are defendants? Any ideas are welcome. Thanks

    asked by Bella
  216. adult education early childhood education

    what are some barriers teachers face when doing an observation on each child in he class?

    asked by sue
  217. math

    How do you figure out 5(6.7-4)?

    asked by lola
  218. PreCalc

    h t t p : / /w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 3 0 7 8 3 thats fair but can i ask why you do not perfer to use a formula?

    asked by Jo
  219. science

    a___ is the change of one or more substances into other substances

    asked by torey
  220. language

    whats serminuo in french unscrambled

    asked by cb in sf
  221. science

    how do you get help?

    asked by taher
  222. health

    What is happening in the world today that can cataclysmically affect public health?

    asked by Anonymous
  223. math

    okay ..:(

    asked by Katherine