Questions Asked on
October 27, 2010

  1. Chemistry

    3) The following set of data was obtained by the method of initial rates for the reaction: 2 HgCl2(aq) + C2O42-(aq) 􀀏 2 Cl-(aq) + 2 CO2(g) + Hg2Cl2(s) What is the rate law for the reaction? [HgCl2], M [C2O42-], M Rate, M/s 0.10 0.10 1.3 × 10-7 0.10

    asked by Olivia
  2. College Chemistry

    A Galvanic cell consists of Mg electrode in a 1.0 mol L -1 Mg(NO3)2 solution and a Ag electrode in a 1.0 mol L-1 AgNO3 solution. Calculate standard emf for the spontaneous reaction of this electrochemical cell at 25 C, given that the standard reduction

    asked by Elleni
  3. 6th grade math

    How many 1/6s are in 1? How many 1/6s are in 1/2 ?

    asked by Susan
  4. chemistry

    Four identical 1.0-L flasks contain the gases He, Cl2, CH4, and NH3, each at 0°C and 1 atm pressure. Which gas sample has the greatest number of molecules?

    asked by Tasha
  5. college

    It takes 51.0 j to raise the temperature of an 8.60 g piece of unknown metal from 13.0 C to 25.0 C. What is the specific heat for the metal?

    asked by Anonymous
  6. Physics

    The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 20 m radius of curvature. What is the car's speed at the bottom of the dip?

    asked by tyler
  7. calculus problem

    the thin lens equation in physics is 1/s+1/S=1/f where s is the object distance from the lens,S is the image distance from the lens,and f is the focal length of the lens.Suppose that a certain lens has a focal length of 6cm and that an object is moving

    asked by roslin
  8. Chemistry

    Consider the following reaction: 2 SO2 (g) + O2 (g)----> 2 SO3 (g) If 285.3 mL of SO2 is allowed to react with 158.9 mL of O2 (both measured at 315 K and 50.0 mmHg), what is the limiting reactant and theoretical yield of SO3 in moles? If 187.2 mL of SO3 is

    asked by Jarrod
  9. physics

    An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.20 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another

    asked by bobjahng
  10. College Chemistry

    For the reaction SO3(g)---> SO2(g) + 1/2 O2(g), Kc= 16.7 at 1000 K. What is the value of Kc at 1000 K for the reaction 2 SO2 (g) + O2(g)---> 2 SO3(g)?

    asked by Jalisa
  11. SOLVE THE INEQUALITY

    3X+4Y

    asked by PLEASE HELP SOLVE THIS
  12. science

    Instructions: Read the following paragraph carefully. Then use what you know about momentum, work, and energy to answer the following questions. Be sure to show your work. You are a traffic accident investigator. You have arrived at the scene of an

    asked by Anonymous
  13. Math

    What is the place value of the number? 14.(5)805 ^

    asked by Olivia
  14. math

    How does a Hawaiian Baritone laugh?

    asked by Tyler
  15. Chemistry

    HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l) NH4Cl(aq) + +NaOH(aq) -> NH3(aq) + NaCl(aq) + H2O(l) NH3(aq) + HCl(aq) -> NH4Cl(aq) Write net ionic equations for the three reactions. Show how the first two reactions are arranged algebraically to determine the

    asked by Anonymous
  16. PHYSICS ---HELP!

    Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km. Make a

    asked by Mary
  17. math/algebra

    3x+4y=5 6x+8y=10

    asked by Elimination method PLEASE HELP
  18. Physics- Work related

    If 2.0 J of work is done in raising 180 g apple how far is it lifted? I would assume that 2/180 = x but I divided it and it does not sound right.. please someone help.

    asked by Pablo
  19. chemistry

    Data: SO2(g)+ 1/2O2(gas)forms SO3(g)Delta H = -99.1 kJ. Given the above data, calculate the enthalpy change when 89.6 g of SO2 is converted to SO3. Is this a grams to moles conversion or what? I can't find any examples of this type of calculation.

    asked by lavonne
  20. Math Pizzaz worksheet 9.3

    What happens when the King of Beasts runs in front of a train? I cant figure out the riddle. I need help! :)

    asked by Mintsey
  21. art/101

    · Examine the sculptures of Donatello’s David (Early Renaissance), Michelangelo’s David (High Renaissance), and Bernini’s David (Baroque). · Write a 300- to 350-word comparison of the different styles of the David sculptures by these three artists.

    asked by stephaine
  22. physics 111

    A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor? answer in kg·m/s

    asked by Blake
  23. Physics

    A child bounces a 46 g superball on the side-walk. The velocity change of the superball isfrom 28 m/s downward to 16 m/s upward.If the contact time with the sidewalk is1800s, what is the magnitude of the average forceexerted on the superball by the

    asked by Johnnie
  24. Psychology

    What is an advantage and disadvantage of the Incentive Motivational Theory in Psych?

    asked by Jake
  25. management 330

    1. How do strategic, operational, and tactical planning differ? How might the three levels complement one another in an organization? 2. Define corporate social responsibility. What are the arguments for and against the concept of corporate social

    asked by sebastian
  26. english

    what is the comparative and superlative form of independent

    asked by tearrany
  27. math111

    Suppose the graph of f is a parabola with vertex at (2,1). Suppose g(x) = 3 x + 2. a) What are the coordinates of the vertex of the graph of g(composed)f? b) What are the coordinates of the vertex of the graph of f(composed)g?

    asked by Jessica
  28. Organic Chemistry

    In the substitution reaction of 2-pentanol with sulfuric acid and sodium bromide, how many grams of sodium bromide and mL of sulfuric acid would be required if we use 3.5 grams of 2-pentanol?

    asked by Jack
  29. Physics

    A helicopter has two blades (see figure), each of which has a mass of 220 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 45 rad/s. (a) What is the total moment of inertia of the two blades about the

    asked by Claire
  30. physics-please help!

    The total cross-sectional area of the load-bearing calcified portion of the two forearm bones (radius and ulna) is approximately 2.5 cm2. During a car crash, the forearm is slammed against the dashboard. The arm comes to rest from an initial speed of 80

    asked by Erica
  31. 11th grade Chemistry

    How to draw a Lewis dot structure....

    asked by Shay
  32. Chemistry

    Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density of uranium hexafluoride at 76°C at 747 torr.

    asked by Mattie
  33. psychology

    How has early memory research concerning the growth of cognitive perspectives in psychology changed over the course of the 20th century?

    asked by Anonymous
  34. Calculus Help

    Determine the point at which the graph of the function has a horizontal tangent line. f(x) = (9x^2)/(x^2+6)

    asked by Sam
  35. Chemistry

    If the pressure on a 1.04 L sample of gas is doubled at the constant temperature, what will be the new volume of the gas?

    asked by Britt
  36. biology

    In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated

    asked by tina
  37. College Biology

    A 21-year old brother of a person with insulin-dependent diabetes mellitus experienced increased urination and thirst for 6 weeks, along with a 15 pound weight losss, despitre a normal appetite. Fearing that these symptoms meant he also had developed

    asked by Anonymous
  38. physics

    A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?

    asked by CATS
  39. Chemistry

    1. Calculate the number of moles of carbon atoms present in 2.4g of ethanol (C2H6O). 2. What is the % Nitrogen by weight in 3.696 mol of ammonium sulfide. 3. How many atoms of mercury are present in 5.4 cubic cm of liquid mercury? The density of mercury is

    asked by Jessica
  40. Physics - Charges at an angle (check + help)

    Three charged objects are located t the vertices of a right triangle. Charge A (5*10^-6) has Cartesian coordinates (0,4; Charge B (-5.0*10^-6) is at the origin; charge c (+4.0*10^-6) has coordinates (5,0), where the coordinates are in meters. What is the

    asked by Anonymous
  41. college algebra

    Use the theorem on bounds to establish the best integral bounds for the roots of the equation w^(4)-8w^(3)+2w^(2)+10w-1=0

    asked by samantha
  42. Chemistry

    Cu (I): CN- Pb2+: CN-, SO3^2-, PO3^3-,MnO4- Ca2+: CN- Al3+: CN-, SO3^2-, PO3^3-,MnO4- Cr5+: CN-, SO3^2-, PO3^3-,MnO4- Pb4+: CN- Sn2+: CN- Mn2+:MnO4- Ag+:CN-, SO3^2-, PO3^3- H+: CN-, SO3^2-, PO3^3-,MnO4-

    asked by Nick
  43. physics

    How long would it take for the Earth to complete a full turn if a person at 49.2° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,385 km for the radius of Earth

    asked by trisha
  44. chem

    Give the general formula for any cyclic alkene; that is, a cyclic hydrocarbon with one double bond. (Type your answer using the format CnHn+1 for CnHn+1.) thanks:)

    asked by sarah
  45. perfect competition

    If all the assumptions of perfect competition hold, why would firms in such an industry have little incentive to carry out technological change or much research and development? What condition would encourage research and development in competitive

    asked by raja
  46. calculus

    Find parametric equations for the line through the point P(2, 9, 4) that is parallel to the plane x + y + z = 6 and perpendicular to the line x = 5 + t , y = 5 − t , z = 5t . Answer Choices: 1. x = 2 + 6t, y = 9 + 4t, z = 4 + t 2. x = 2 + t, y = a + t, z

    asked by Bob
  47. Accounting

    How could you apply the concepts of Readability, Reusability, and Reliability

    asked by Anonymous
  48. chemistry

    Ethylene glycol (antifreeze) has a specific heat of 2.42 J/(g*K). Calculate q when 3.65 kg of ethylene glycol cools from 240 degrees C to 78 C

    asked by Tara
  49. physics

    A 82-kg astronaut and a 1300-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.24 m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with

    asked by aok
  50. algebra

    what does x equal in this equation?1/2+7x/10=13/20

    asked by Emily
  51. Chemistry

    22. Arrhenius defined an acid as hydrogen containing and able to form hydrogen ions in water.- T? 23. A strong acid does not have to be a strong electrolyte.- F? 31. Bases generate (OH) ions.- T 32. A neutralization reaction forms water from hydronium and

    asked by mysterychicken
  52. Chemistry

    I need help starting this problem: A piece of dry ice (solid carbon dioxide) with a mass of 4.50 g is sealed inside a 2.0 L bottle, and allowed to sublime. At 22.0 degrees Celsius, what is the partial pressure of the CO2 in the bottle? (Assume that all of

    asked by Jay
  53. algebra

    I need help with this problem. (7-x)(9-2x) This is the answer I came up with. Please let me know if I'm right. x^2-23*x+63

    asked by Brandy
  54. Chemistry

    A 1.00-kg sample of Sb2S3(s) and a 10.0-g sample of H2(g) are allowed to react in a 25.0-L container at 713 K. At equilibrium, 72.6 g H2S(g) is present. What is the value of Kp at 713 K for this reaction? Sb2S3(s) + 3 H2(g) 2Sb(s) + 3 H2S(g)

    asked by Shanice
  55. math

    How do turn 80dm into centimeters

    asked by Yvette
  56. MATH

    In a triangle ABC, angle B is three times angle A and angle C is 1 less than 6 times angle A. Find the size of angle A, B, C

    asked by Amy
  57. chemistry

    A 2.85-g sample containing only MgO and CuO is placed in a 3.00-L container. The container is filled with CO2 to a pressure of 740. torr at 20. degree C. After the reaction has gone to completion, the pressure inside the flask is 390. torr at 20. degree C.

    asked by thomas richards
  58. math

    A book is 1 3/4 inches thick. There are 8 copies of the same book stacked in a bookstore. How tall is the stack in inches?

    asked by Aly
  59. 5th grade Math

    I have to find the function rule that goes with this table... X Y 2 8 4 18 7 33 9 43 12 57 I've been trying to figure it out for an hour and can't find anything that works for all of them.

    asked by Erica
  60. Biology

    Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive

    asked by tina
  61. biology

    In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated

    asked by tina
  62. physics

    A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?

    asked by CATS
  63. calculus

    Use a linear approximation (or differentials) to estimate the given number (2.001)^5

    asked by -__-
  64. math

    The birth weight of childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estiamted the total weight of the babies at birth was 30 pounds. Which best describes his estimate? A. More than the actual weight because

    asked by Aly
  65. physics

    A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?

    asked by CATS
  66. 3rd homework

    the water cycle lesson 2 how water changes and moves 1. ____________ water changes from a __________ to a _________________ 2. ____________ water changes from a _________ to a ________________ 3. _________________ Liquid water falls to the ground as

    asked by choconcung
  67. 12th Grade Calculus

    When a ball is thrown straight down from the top of a tall building, with initial velocity 30 ft/sec, the distance from the release point at time t in seconds is given by s(t)=16t^2+30t. If the release point is 300 ft above ground, what is the velocity of

    asked by Leanna
  68. assignment

    Q.17: In the Figure 3.22 find the acceleration of the masses and the tension in the string.

    asked by saad
  69. ELA

    This Is a Argumentative Essay On Plymouth,Massachusetts, Can you see if I need some corecctions? Plymouth, Massachusetts “The cowards never started and the weak died along the way” It is applied to the Plymouth Pilgrims, who clearly had obtain courage,

    asked by Veronica
  70. English

    1. Mooncakes have a full-moon shape. 2. Songpyeon has a half-moon shape. (What is the part of speech of 'full-moon' and ' half-moon'? Adjective or noun?)

    asked by rfvv
  71. physics

    Mary and John are on opposite sides of a seesaw. Mary has 3x the mass of John. If Mary is sitting at a distance of .5m from the fulcrum, how far must John site in order to keep it balanced.

    asked by help
  72. physics

    what is the efficiency of a pulley that requires a worker to do 250 J of work to lift an object that requires 170 J of work

    asked by joe
  73. Ap calculus

    Find the equation of the tangent line to the curve g(X)= 2cos(2X)/(3X) at the point x= pi/3

    asked by HELPP
  74. world history

    names 6 sumerian inventions

    asked by klk
  75. Math 8th grade algerbra

    a cylinder has a radius of 3cm and a length of 10cm every dimention of the cylinder is multiplied by 3 to form a new cylinder how is the ratio of the volumes related the ratio of corresponding dimensions? how would i do this?

    asked by Courtney
  76. BIOLOGY( please help me)

    Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive

    asked by tina
  77. BIOLOGY ( please Help me)

    In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated

    asked by tina
  78. Physics

    If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?

    asked by George
  79. Algebra PLEASE HELP

    Solve by substituion method 2r-5s=-12 5r+2s=57

    asked by anonymous
  80. Chemistry

    22. Arrhenius defined an acid as hydrogen containing and able to form hydrogen ions in water.- T? 23. A strong acid does not have to be a strong electrolyte.- F? 31. Bases generate (OH) ions.- T 32. A neutralization reaction forms water from hydronium and

    asked by mysterychicken
  81. algebra

    how do I simplify -2xyz^3/5x^2z^2 times 10xy/x^3

    asked by rocky
  82. Science HELP!

    If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?

    asked by George
  83. math111(2)

    Suppose h(x) = x^2 + 8 x + 5, with the domain of h being the set of positive numbers. Evaluate h^{-1}(8).

    asked by Jessica
  84. algebra

    the area A of a triangle with base b and height h is given by A=1/2bh,find the area when b=28m(meters) and h=38m. The area is m

    asked by CeCe
  85. AMath

    Write a polynomial function of minimum degree in standard form with real coefficients whose zeros include those listed 2, 3 and i.

    asked by Brenda
  86. AP Chemistry

    Each increase in pressure of 100 atm decreases the melting point of water by 1.0 degrees C. Estimate the temperature at which liquid water freezes under a pressure of 400 atm. How do I approach this problem?

    asked by Thuy
  87. spanish

    El museo está ____ teatro. a. a la derecha del b. al lado de c. detrás de d. a la izquierda de la A?

    asked by Lily
  88. social studies

    the U.S. banned the trans-atlantic slave trade in 1808. what effect did this have on sectionalism in america at this time?

    asked by pjl
  89. Physics - spring balls

    A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the spring-ball

    asked by Anonymous
  90. physics

    A heavy freight train has a mass of 11800 metric tons. If the locomotive can pull with a force of 691000 N, how long does it take to increase it's speed from 0 to 70.3 km/h?

    asked by Jackson
  91. math

    an alloy of metals is 20% copper. another alloy is 50% copper.how much of each should be used to make 1000 gram of an alloy that is 45% copper?

    asked by k.boy
  92. physics

    To make a bounce pass, a player throws a 0.60-kg basketball toward the floor. The ball hits the floor with a speed of 6.5 m/s at an angle of 57° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by

    asked by aok
  93. Business Calculus

    My problem is easy, but i need help. My problem is Q=3K^.35 L^.87 EL=? Ek=? CRS=? CRS is 1.22> 1 I know, but not the rest than part b is when K=30, L=83, what is MPk=? MPL=? Please help

    asked by mary
  94. bioethics

    For my bioethics class I need to create a "political" cartoon about clinical trials. (I say "political" because it's not really about politics, just the general format of a political cartoon.) I was trying to think of something related to placebos maybe,

    asked by Meghan
  95. math

    -6 1/3 + -5 1/4 - 19/3 + - 21/4 then?

    asked by Anonymous
  96. US History

    26. What were the major factors which shaped American foreign policy in the period 1890 to 1900? Show how at least one of these factors influenced our actions in the Panama Canal controversy. Does this answer it?: In 1891, the United States demanded

    asked by mysterychicken
  97. Physics

    The space shuttle is in a 200-mile-high orbit. What is the shuttle's orbital period?

    asked by mike
  98. social studies

    the mexican-american war added the mexican cession to the U.S. in 1846-1848. what effect did this have on sectionalism in america?

    asked by dsd
  99. Math

    This number has 4 places to the right of the decimal point. It has 2 hundreds, 3 ten thousandths, and 1 tenth. It is in between 240 and 242. The thousandths place is one less than the ten thousandths and less than the hundredths. What are six numbers that

    asked by Scarlett
  100. MATH

    Earth, Jupiter, and Uranus all revolve around the sun. Earth takes 1 yr, Jupiter 12 yr, Saturn 30 yr, and Uranus 84 yr to make a complete revolution. One night, you look at those three distant planets and wonder how many years it will take before they have

    asked by JESSICA
  101. French

    How do you write these sentences in le passe compose? *Catherine la voit. *Le coiffeur les coupe. (les refers to les pommes) et *La fille la met sur la table.

    asked by Kody
  102. Math

    Have to find the age of a family of 7. I'm told that the youngest child is 6, the oldest is 16 have a set of twins that are 15. The mean is 11 and the mean is 10. I added up all the numbers and got 73. Thought that if I added 4 I got 77 and then could get

    asked by Lori
  103. math

    hi i need to solve this question but i don't know how to do it when there is dividing included x(x-8):5=92 i did this much and then i found out that what i was doing was wrong x(x-8):5*5=92*5 2x-8=460 2x=468 x=234 but it seems wrong

    asked by louise
  104. social studies

    william lloyd garrison's american anti-slave society was formed in the 1830s. what effect did this have on sectionalism in America?

    asked by dsd
  105. hinduism

    I have to answer these questions in a few sentences, but I can't figure the first one out. Different websites tell me different stuff.. 1. How was the world created? 2. Description of God There is no single deity, instead there are thousands of gods.

    asked by y912f
  106. Chemistry

    How to make into compounds to get a formula? Li+: Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Cu:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Pb2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Ca2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Al3+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4-

    asked by Jessica
  107. social studies

    cotton made up 60% of all U.S. exports in 1850. what effect did this have on sectionalism in america?

    asked by egv
  108. geometry

    if segment AD is 10 units; segment AB is 8 units; segment AC is 12 units; segment ED is 4.5 units. If angle BAD is 50 degrees what is the measure of angle ADC

    asked by Anonymous
  109. 6 principals of art

    I have to Draw 4 examples of the 6 principles of art. I have no idea what she is asking me to do. I can make dots all day but I don;t think this is what she is asking!!!! Help plzzzz.

    asked by Mary
  110. math

    -5s = 5/7 s=?

    asked by Anonymous
  111. algebra

    (3d*d*d e*e*e)(-5d e*e*e)

    asked by shykirah
  112. math

    triangle ABC has vertices A(3,4), B(4,-3) and C(-4,-1). a. draw a sketch of the triangle b. draw the altitude from vertex A c. find the slope of side BC which is =-1/4 d. find the slope of the altitude from A which is 4 e. find the equation of the line

    asked by Ted
  113. social studies

    1. What was the first PERMANENT European colony in North America? hope someone can help!!

    asked by JJ
  114. Writing

    What are some strategies we can use to analyze our audiences? At which stage in the writing process should we analyze the audience?

    asked by Paul
  115. 11th grade Chemistry

    How to draw a Lewis dot structure....

    asked by Shay
  116. Social Studies

    I need a site for lot's of tourist attractions of India. Please help me find one thanks!

    asked by Pratigya
  117. Writing

    What are the rules involved when using this type of formatting? How did the formatting of those messages affect their level of success? Please help with this question. thank you

    asked by Paul
  118. chemistry

    Would it make a difference if calcium bromide solution is used rather than sodium solution?

    asked by josh sears
  119. math-ms sue please

    Ms Sue thank you for the help with my other word problem can you check this one for me? Write a word problem and find the solution to the equation. 1/2-2/3 THe answer is -1/6 and the word problem I created is: Janet put 6 suckers on a table. 3 suckers were

    asked by m
  120. math!!!!!!! help 3

    a water cooler contains 5 gallons of water.if drink 3/5 gallon for each of the next 6 days how many gallons will be left in water cooler at the end of the sixth?

    asked by niki
  121. Math 111

    Find the quadratic function that has vertex (-1, 8) and whose graph goes through the point (8, 170). I could not understand this problem I Can not for the lift of me get it. I got as far as some number(x+1)^2+8 but i don't know what the number before all

    asked by Jessica
  122. english

    What format is used when writing a book report

    asked by Jess
  123. chemistry

    the model of the atom that pictured the atom with electrons struck randomly throughtout the mass of the atom was called the

    asked by 000
  124. calculus

    Find the formula for the described function and state its domain. An open rectangular box with a volume of 8 cubic meters has a square base. Express the surface area of the box as a function of S(x) of the length x of a side of the base.

    asked by DJ
  125. 5th math

    Estimate and solve. 214+182= Estimate___________ Solution____________ 1,532-176= estimate:_____ can you please show the work too thanks!! Solutionz:____

    asked by pat
  126. Chemistry

    How many atoms of mercury are present in 5.4 cubic cm of liquid mercury? The density of mercury is 13.55g/cc. mass Hg = volume x density Then convert to moles. Then remember there are 6.022E23 atoms for every mole. I still don't get how to do this! HELP

    asked by Jessica
  127. college chemistry

    ë for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 5 I have tried to figure this out so many times, found the same answer, and it's always wrong. please help

    asked by sarah
  128. Physics: Moment of Inertia

    A yo-yo has a rotational inertia of 760 g·cm2 and a mass of 200 g. Its axle radius is 4.0 mm, and its string is 100 cm long. The yo-yo rolls from rest down to the end of the string. (a) What is the magnitude of its linear acceleration?

    asked by Xavier Hernandez
  129. statistics

    among the exames in the examination 30%, 35% & 45% failed in statistics, in maths, & in atleast one of the subjects respectively. one student is selected at random. find the probability that: (a)he has failed in maths, (b)he passed in statistiics if it is

    asked by hhhh
  130. Physics

    A car travelling at 72km/h drives off a cliff 400m high. How long does it take to hit the ground?

    asked by Anonymous
  131. 11th grade history

    Compare Thomas Paine to someone well known today

    asked by Dale
  132. Chemistry

    Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 255 mL of coffee from 25.0 C to 62.0 C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g/ K), as water

    asked by tommy
  133. MAT 115

    I need help with the following question. I tried it, but I don't think I am right. I got 11 1/15 for an answer. I am really confused. Please show me how you did it. Evette has 41 1/2ft of string. She wants to cut it into pieces 3 3/4ft long. How many

    asked by G
  134. english

    it pertains to Halloween

    asked by ouraclnd
  135. probability

    among the exames in the examination 30%, 35% & 45% failed in statistics, in maths, & in atleast one of the subjects respectively. one student is selected at random. find the probability that: (a)he has failed in maths, (b)he passed in statistiics if it is

    asked by hhhh
  136. physics

    A(n) 3.46 g bullet is fired into a(n) 2.4 kg ballistic pendulum and becomes embedded in it. The acceleration of gravity is 9.8 m/s2 . If the pendulum rises a vertical distance of 7.13 cm, calculate the initial speed of the bullet.

    asked by Jonathan
  137. PRODUCT MAP

    WHAT ARE THREE TYPES OF GRAIN GROWN IN PENNSYLVANIA

    asked by MARIAM
  138. math

    find x 4x-5/1-5x = x+1/x+7 please can you show me the method thanks

    asked by peter
  139. literary

    In what distant deeps or skies Burnt the fire of thine eyes? On what wings dare he aspire? What the hand dare seize the fire? and Tyger! Tyger! burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? Are "In

    asked by Jessica
  140. 2nd grade

    WHAT ARE THREE TYPES OF GRAIN GROWN IN PENNSYLVANIA

    asked by MARIAM
  141. math

    how to factor 4x^2+4x-1 and x^2-2x+1=5

    asked by joan
  142. biology 101

    what is the inheritance of sex-linked traits.

    asked by Anita fields
  143. writing

    I am writing a concept essay and have chosen the stigma of mental illnes. My teacher says this is not a concept...help because I am lost!

    asked by Lynne
  144. english

    I need help on how to write a paragraph on comparing and contrast regaring academic writing using four comparatives and four superlatives?

    asked by Anonymous
  145. physics

    A block of mass 4.253 kg is released on the track at a height 5.52 m above the level surface. It slides down the track and makes a head-on elastic collision with a block of mass 17.012 kg, initially at rest. The acceleration of gravity is 9.8 m/s2 .

    asked by paul
  146. 2nd Grade

    NAME THREE TYPES OF GRAIN GROWN IN PENNSYLVANIA

    asked by MARIAM
  147. Molly

    The CoolWheels Toy Company is designing a new track where a car (mass 60 g) is launched by a spring-loaded starter (k=11 N/m) and goes through a vertical loop (radius 9 cm). If the spring is depressed ∆x=19 cm from equilibrium, what is the speed of the

    asked by Physics: energy
  148. English

    Put the water into the pan first.

    asked by Hayley
  149. Kristen

    A flywheel has a moment of inertia of 2.6 kg·m2. What is the average power needed to spin it up from rest to an angular velocity of 100 rad/s in 30 seconds?

    asked by Physics
  150. grammar

    How would u use grammar in the future: pronoun, adjectives, verbs, and subject. I know how to use them just don't know how to explain on paper for the future

    asked by Anonymous
  151. chemistry

    What is the molarity of a solution prepared by dissolving 8.5 g NaCl in enough H2O to give 600 ml of solution?

    asked by mica
  152. geometry

    find circumerence 22/7 x 3.5

    asked by Alayasia
  153. geometry

    ABCD is a quadrilateral with BC perpendicular to AB and DE is perpindicular to AB. If AB is 38 yard and EB equals 18 yards, BC equals 13 yards, and DE equals 15 yards. Find the area of ABCD

    asked by mike
  154. math

    what are the possible advantages and disadvantages of using least common denominator when adding and subtracting fractions?

    asked by m
  155. American History

    I need to compare Thomas Paine to a well known person today. Any suggestions?

    asked by Dale
  156. math

    For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school.

    asked by vvvvvv
  157. english

    Looking for topics to write an essay where the topic is debatable. Any ideas? Essay needs to be 5-7 pages

    asked by Lynne
  158. College Chemistry

    Determine the values of Kc that correspond to the following values of Kp (a) SO2Cl2(g)--->SO2(g) + Cl2(g) Kp= 2.9 x 10^-2 at 303 K (b) 2 NO2 (g)--->2NO(g)+O2(g) Kp= 0.275 at 700 K (c)CO(g) + Cl2(g)---> COCl2(g) Kp= 22.5 at 395 degree Celsius

    asked by Shanice
  159. MATHS

    Complete the pattern. 1,1,4,25,--------,749956 Thanks for your help

    asked by DONNA
  160. science

    the carrying capacity for a population is estimated at 500. the population size is currently 400 and r max is 0.01. what is dN/df?

    asked by lisa
  161. world issues

    what impact did ancient roman weapons have on our current society?

    asked by austin
  162. economics

    With illustrations, show how the study of business economics helps a business manager in decision making?

    asked by bobby
  163. English

    Be sure to bring your skates in before the rain starts. 2.The boy clasped the money tightly in his hand. 3.What do you think you'd find over the rainbow? 4.High above the mountain, the hawks wheeled in lazy circles. 5.A fire blazed inside, welcoming the

    asked by Hayley
  164. College Chemistry

    Calculate the cell potential for the following Galvanic cell: Co(s) Co2+ (0.15 mol L-1, ag)Fe 2+ (0.68 mol L-1, ag)Fe(s) Given that the standard reduction potential Eo for Co2+ is -0.28 V and Eo for Fe2+ is -0.44 V. Anwer is -0.14 V The left side of the

    asked by Elleni
  165. math/209

    Mike would like to enlarge his rectangular front yard which is currently 80 feet by 40 feet. He can only extend the width and length by 5x feet. If x = 7 feet, what will be the increase in area of the front yard? How can this problem be raised to a higher

    asked by wilfredo
  166. Physics - spring balls

    A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the spring-ball

    asked by Anonymous
  167. 6th grade ancient roman weapons

    what impact does ancient roman weapons have on our current society?

    asked by austin
  168. Physics - inverse square law (check + help)

    Two identical objects have charges from +6.0*10^-6 and -2.0*10^-6, respectively. When placed a distance d apart, their force of attraction is 2,0N. If the objects are touched together, then they moved to a distance of separation of 2d, what will be the new

    asked by Anonymous
  169. College Chemistry

    Determine Kc at 298 K for the reaction 1/2 N2(g0 + 1/2 O2(g) + 1/2 Cl2(g)--> NOCl(g), given the following data at 298 K 1/2 N2(g) + O2(g)--> NO2(g) Kp= 1.0 x 10^-9 NOCl(g) + 1/2 O2(g)-->NO2Cl(g) Kp= 1.1 x 10^2 NO2(g) + 1/2 Cl2(g)--> NO2Cl(g) Kp= 0.3

    asked by Jalisa
  170. Math

    I am in the 5th grade and my homework tonight is about complex numbers. I have no idea how to do complex numbers, not to mention, I don't know what they are. Can you help me?

    asked by Jeida
  171. math

    2 1/2 m = 7/12 m=1/4? 2 1/8k = 7 k= 3 5/17?

    asked by Anonymous
  172. MATH-STUCK

    Express each power as an equivalent radical. K. I don't know how to write this, but I'll explain. There is a fraction. 1 over 9. And 9 has a power up to it which is 5 and a power down which is 3. I don't get how to express this power as an equivalent

    asked by Anonymous
  173. Physics

    create a problem that could be represented/answered by the following equation. Include a sketch. Be sure to ask a question. 2kg * a = kg * 10N/kg * sin30 - 0.3 2kg * 10N/kg * cos30 so far I got that the object has a 20N downward force and a pull 30 degrees

    asked by jen
  174. College Chemistry

    The rate constant for decomposition of compound X was determined to be 1.0x10^-4 s-1 at 298 K and 1.0x10^-2 at 365 K. The activation energy for reaction is: I don't know if this is correct 8.314 x 10^-3 x 298x365 divided by 365 - 298 x In 1.0 x10^-2

    asked by Elleni
  175. College Chemistry

    The equilibrium constant for the conversion of cis-stilbene to trans-stilbene is Kc = 24.0 at 200 C. If cis-stilbene is placed in an empty container at an initial concentration of 0.850 mol/L. What is the final concentration of trans-stilbene in the

    asked by Elleni
  176. Chemistry

    Hydrated calcium sulfate contains 55.8% sulfate by mass. Calculate the value for "n".

    asked by Sia
  177. math

    what are the tenths frations to desimals

    asked by Diante
  178. global

    if you are a greek individual living under ottoman rule, what would you say to persuade a European nation to help your cause ?

    asked by rachel
  179. geometry

    find values for r and t such that the inequality r < S < t best describes s, the length of the third sides of a triangle for which the lengths of the other two sides are given. 11. 2 and 4 thanks for the help !

    asked by lisa
  180. physics question

    A 278-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an

    asked by michelle
  181. English

    I have to write 4 sentences using an adverb and 4 using a preposition. Could you please check? I will list the adverbs first. 1.I'm sure he let the dog come in last night. 2.We watched the balloons floating far above our heads. 3.The bus drove past the

    asked by Jim
  182. math

    round to the nearest thousand,the nearest hundredand nearest ten

    asked by Anonymous
  183. english

    it looked just like the older (boy's, boys's) which one is the correct possessive noun in this sentence?

    asked by jacoby
  184. 1st grade

    Phone organize two wrod.letter.list.word how do I do it

    asked by zukyah
  185. accounting

    transactions 1.bought machinery for cash rs.50,000 2.payment made to XYZ store rs.10,000by cheque 3.Purchased office furniture on credit for rs.15,000 4.Rs. 1,000 received as a rent for the portion of office building rented out 5.Paid salaries of Rs.40,000

    asked by mary
  186. chemistry

    Determin whether Cd2+ can be separated from Zn2+ by bubbling H2S through a 0.3 M HCl solution that contains 0.005 M Cd2+ and 0.005 M Zn2+. Ksp for CdS is 8x10^-7 and Ksp for ZnS is 3x10^-2.

    asked by bam
  187. Calculus

    Find the Derivative of y=9(5-x^2)^4

    asked by Ally
  188. chemistry

    Determine whether Cd2+ can be separated from Zn2+ by bubbling H2S through a 0.3 M HCl solution that contains 0.005 M Cd2+ and 0.005 M Zn2+. Ksp for CdS is 8x10^-7 and Ksp for ZnS is 3x10^-2.

    asked by bam
  189. Question on essay ( Please respond?)

    Is there anyway I could email a tutor and send them a picture I scanned of my homework, because it's a bit hard to explain over words? Thanks. -Allyson

    asked by Allyson
  190. statistics- normal standard distribution

    a set of data is normally distributed with a mean of 500 and standard deviation of 100: *what would t he standard score for a score of 700 be? According to my calculations 700-500/100=200/100=2 how would i interpret that. please show work. i know that i

    asked by mary- please check calculations.
  191. math

    what is this answer (1.5x,1.5y)

    asked by alley
  192. Ap calculus

    evaluate the derivative of f(X)= 3Xsin(X) at a=0

    asked by Kay
  193. bus math

    Determine the selling price of a 15-year, 4.725% bond, with $1000 maturity value, with a yield of 4.735%. (Assume twice-yearly interest payments. Round your answer to the nearest cent.)

    asked by liz
  194. statistics- normal approximation

    find the normal approximation for the binomial probability that x=5, where n=12, and p=0.7. compare this probability to the value of p(x=5). * the only thing that i have come up with is that value of p(x=5) is o.29 when looking it up on the table. how

    asked by mary- where do i begin
  195. HELPPPPP

    so im done with everything except fro this question : A(n) 2.3 kg object moving with a speed of 8.6 m/s collides with a(n) 4 kg object moving with a velocity of 8.8 m/s in a direction39.0135◦ from the initial direction of motion mof the 2.3 kg

    asked by dan
  196. bus math

    Meg's pension plan is an annuity with a guaranteed return of 7% interest per year (compounded monthly). She would like to retire with a pension of $20000 per month for 20 years. If she works 28 years before retiring, how much money must she and her

    asked by liz
  197. History help Last question

    Last question regarding FDR. why would someone think that a country that is concentrated on recovery programs and the results, mean orientation of foreign policy? Could someone please write a brief explanation about this. I don't get how foreign policy

    asked by Amy
  198. Writing an essay, help please?

    Here is what I've done so far: tinyurl(dot)com/25932b5 ( This is a link, so I put spaces there so I could put it) and here are the directions: //tinyurl(Dot)com/243s3q3 I need help filling out the rest of the paper, Can somebody help me fill out the next

    asked by Allyson
  199. Math

    find values for r and t such that the inequality r < S < t best describes s, the length of the third sides of a triangle for which the lengths of the other two sides are given. 11. 2 and 4 thanks for the help !

    asked by lisa
  200. Physics

    A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular path?

    asked by Cheri
  201. math correct or no?

    The birth weights of 4 childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estimated the totall wieight of te babies at birth was 30 pounds. Which best describes his estiamte? A. More than the actual weight

    asked by Aly
  202. calculus

    Consider the following function. f(x) = (x+2)/(x-3) (a) Find f '(x) (b) Find f '(4)

    asked by Sal
  203. History

    Why was US participation in the international economic system vital? for exchange-rate stabilization. Could someone explain this to me. I've already gone through websites.

    asked by Amy
  204. math

    what is the greatest common factor using prime factoraztion for 90 and 126

    asked by niki
  205. math

    Maureen forgets to turn a faucet off. After a minute, 1.5 gallons of water comes out of the faucet. Which equation can bw used to find the number of gallons, g, that comes out of the faucet after 2 hours? A. g= 1.5 x 1/30 B. g=1.5 x 1/120 C. g=1.5 x 120 D.

    asked by Aly
  206. chemistry

    How to make into compounds to get a formula? Li+: Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Cu:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Pb2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Ca2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Al3+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4-

    asked by Jessica
  207. math

    please help me I don't know how to do this....

    asked by -0.2x<-12
  208. math

    A book is 1 3/4 inches thick. There are 8 copies of the same book stacked in a bookstore. How tall is the stack in inches?

    asked by Aly
  209. chemistry

    if the beaker was wet at the beginning of the experiment for the inital mass of the beaker, how would that affect the experimentally determined number of molecules of water in the hydrate?

    asked by kim
  210. math

    Tami is cutting an 8 1/2 inch wide piece of paper in strips for an art project. How many 1/2 inch strips can she cut?

    asked by Aly
  211. physics

    A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s?

    asked by john smith
  212. 12th grade

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 13 m/s. The cliff 42 m above the water’s surface With what speed does the stone strike the water? Answer in units of m/s..

    asked by robert
  213. math

    correct or not correct? 6 5/6 + 4 2/3 = 11 1/2 and 6 2/9 - 2 2/3 = 3 5/9

    asked by Anonymous
  214. Physics

    A car (mass 920 kg) drives up a hill (height 328 m) in 143 seconds. At the bottom of the hill, it has a speed of 24 m/s, but at the top, it has slowed down to 14 m/s. Neglecting friction, what is the average engine power?

    asked by Kristan
  215. physics

    An 8.4 g bullet leaves the muzzle of a rifle with a speed of 621.5 m/s2. what constant force is exerted on the bullet while it is traveling down the .6 meter length of the barrel of the rifle?

    asked by john
  216. math

    Trains A and B are traveling in the same direction on parallel tracks. Train a is traveling at 100 mph and train B is traveling 120 mph. Train a passes a station at 7:20 P.M. If train B passes the same station at 7:35 P., at what time will train B catch up

    asked by word problems
  217. science

    if a barrier island that is 1 km wide and 10 km long loeses 1.5 m of its width per year to erosion by a longsore current, how long will the island take to lose one-fourth of its width?

    asked by Anonymous
  218. math 4

    multiply a mixed number by a proper fraction ? results in a number greater than 1. what goes where the ? mark is

    asked by niki
  219. INTERNET BASICS

    W hich one of the following is a domian name of a URL?

    asked by DEBBIE
  220. math

    A train travels at rate of 40 miles per hour for 3 hours. The train enigineer wants to make a trip back in 2 1/2 hours. Which equation can be used for r , the rate the train has to travel on the trip back? A. r= 40 x 3/2.5 B. r= 40 x 3 x 2.5 C. r= 40 x

    asked by Aly
  221. physics

    find the force exerted by the rope on the car when the angle is 2.9 degrees and you are pulling with a force of 384 N but the car does not move

    asked by Bob
  222. statistics

    I have been working on this problem (and looking through my book and the internet) and could use direction. Info given: P(A or B)=.85 (A has line over it) P(A and B)= .41 (A has line over it) P(A or B)=.21 (A and B have line over it) Find P(A/B) (B has a

    asked by Lori
  223. physics

    A baseball is thrown at an angle of 26◦ relative to the ground at a speed of 25 m/s. The ball is caught 50.2046 m from the thrower. The acceleration due to gravity is 9.81 m/s2 . How long is it in the air? Answer in units of s.

    asked by teresa
  224. math

    Most populated U.S cities City Population(millions) New york - 8.10 Los Angeles - 3.85 Chicago - 2.86 Houston - 2 01 Between which two cities was the difference in population about 800,000 people? A. Chicago and Los Angeles B. New york and Los Angeles C.

    asked by Aly
  225. physics

    a runner in the starting blocks is it a potential energy or a kinetic energy?

    asked by Vanessa
  226. Physics

    A football is kicked from the ground at 27 m/s at an angle of 42 degrees above the horizontal (ground). No one gets in the way until after it hits the ground. Use the value g=9.8 m/s^2. Assuming that the ground is level and that there is negligible air

    asked by Sandy
  227. Calculus

    Use Newton's Method with the function f(x)=x^2-2 and initial value Xo=2 to calculate x1,x2,x3. I have no idea how to do this

    asked by Don
  228. ELA

    Do you guys proofread our essays its only about 2 pages.

    asked by Veronica
  229. math

    -12/13 = -1/4 w w= -3 9/13? 2 3/4 =6 3/5y y=5/11?

    asked by Anonymous
  230. calculus

    Use a linear approximation (or differentials) to estimate the given number (2.001)^5

    asked by help
  231. phsics can someone check if i did it right

    A block of wood of mass 3kg is on a rough incline of 37degrees. Find the min value of the coefficient of static friction for the block to remain stationary? Fn=3*9.8cos37 Fn=23.4 3*9.8sin37-us(23.5)=0 us=.743

    asked by help
  232. English

    Thank you very much for helping me. I just want to make sure that all the alternatives are possible. 1) I like spending time on the net (Can you say that?) 2) I lived in London until the age of two. (better: until I was two years old; up to the age of

    asked by Franco
  233. physics

    The electric motor of a model train accelerates the train from rest to 0.640 m/s in 19.0 ms. The total mass of the train is 875 g. Find the average power delivered to the train during its acceleration.

    asked by kk
  234. intro to chem

    disolving sucrose, NaCl< and calcium chloried affect the boiling point of frezing point of water. Assuming that you have 0.1m solution of all these 3 compounds: a)rank then in order of decreasing freezing point. b) rank in order of increasing boiling point

    asked by julia
  235. math

    1/3*4=

    asked by niki
  236. bio

    Are all hairs on body the same structurally? explain. help please

    asked by marie
  237. Calculus

    In the viewing rectangle [-4, 4] by [-20, 20], graph the function f(x) = x3 - 3x and its secant line through the points (-3, -18) and (3, 18). Find the values of the numbers c that satisfy the conclusion of the Mean Value Theorem for the interval [-3, 3].

    asked by Danielle
  238. college math

    the Laplace transform of e^4t(cos 2t)?? please i need help. thanks

    asked by jimmy
  239. PHYSICS

    A 0.150 kg block is placed on a light vertical spring (k = 4.60 103 N/m) and pushed downward, compressing the spring 0.100 m. After the block is released, it leaves the spring and continues to travel upward. What height above the point of release will the

    asked by Petrik
  240. math

    2 4/5 - 3 so 3 becomes 3/1 right? Then change 2 4/5 to 14/5 = 42/15 and 3/1 = 45/15 right?

    asked by Anonymous
  241. PHYSICS

    An athlete on a trampoline leaps straight up into the air with an initial speed of 9.3 m/s. Find the following: (b) the speed of the athlete when she is halfway up to her maximum height

    asked by Petrik
  242. math/algebra

    find the slope if it exists, of the line containing the pair of points. (1,3) and (7,-7) I know you have to do it like -7-3/7-7 and then I get -10/6 and then -1.66666666666667 what do i do to simplify it and write as the answer

    asked by find the slope if it exists
  243. healthcare..Help.. please?

    The manager of a an out-patient surgical unit shares patient information with a pharmaceutical representative to assist the rep in putting together a survey could assist with the FDA approval for a new drug to combat serious post-op infections. Is the

    asked by Bobra
  244. Calculus

    find the parabola whose minimum is at (7,6) rather than the point given in the book. The parabola's equation is y = x2 + ax + b, where a = and b =

    asked by Erika
  245. math

    Given: line nm is congruent to qr; angle m and angle r are right angles; line mp is congruent to ro. Prove: triangle nmo is congruent to triangle qrp and angle n is congruent to angle q

    asked by angelica
  246. math

    How long would it take for the Earth to complete a full turn if a person at 43.8° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,390 km for the radius of Earth.

    asked by trisha
  247. Calculus

    find the values a and b must have to make the function f(x) = axebx have the following properties, rather than the ones the book requires: Make f([ 5/4]) = 2, and make sure f has a local maximum when x = [ 5/4]. a = b =

    asked by Erika
  248. Physics

    A football is kicked from the ground at 27 m/s at an angle of 42 degrees above the horizontal (ground). No one gets in the way until after it hits the ground. Use the value g=9.8 m/s^2. Assuming that the ground is level and that there is negligible air

    asked by Sandy
  249. 3rd homework

    the water cycle! lesson I water on earth type of water 1. ? where found 2. ? 3 ? 4 ? uses 5. ? 6. ? 7. ? 8. ? where found 9. ? 10. ? 11. ? uses 12. ? 13. ? 14. ? 15. where salt and fresh water meet is called an ? please help with the ?'s. I have no idea

    asked by choconcung
  250. physics:energy

    How much power is needed to push a box (mass 27 kg) over a surface (coefficient of friction μk=0.5) with a velocity of 1.1 m/s?

    asked by molly
  251. chem

    how many milliliters of .242 m of NaOH are required to exactly titrate 18.0 grams of H2C2O4

    asked by Anonymous
  252. math

    You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes? 1/2 1/3 1/4 0 Explain your answer.

    asked by M.A.
  253. Spanish

    What does De donde eres? Mean

    asked by Janae
  254. adult education

    I need help with someone to go over my eassy with me can someone please help me.This is my first time using this site so I don't know how it really works SOMEONE PLEASE HELP ME!!

    asked by jennifer
  255. college algebra

    Use the theorem on bounds to establish the best integral bounds for the roots of the equation w^(4)-8w^(3)+2w^(2)+10w-1=0

    asked by samantha
  256. math

    -12/13 = -1/4 w w= -3 9/13? 2 3/4 =6 3/5y y=5/11?

    asked by Anonymous
  257. business math

    In how many ways can 5 ice cream toppings be chosen from 12 available toppings?

    asked by cmb
  258. college algebra

    Use Descarte's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation -5r^(4)+6r^(3)+9r-15=0

    asked by samantha
  259. English

    Can you please check if the following sentences are correct? Thank you. 1) The song "Don't worry be happy" says that we shouldn't worry about what happens to us. 2) In particular, if we have got some troubles, are out of money or can' pay the rent. 3)The

    asked by Franco
  260. Physics HELP!!!

    A ball (radius 0.2 m) is rolling on level ground toward an incline. If its velocity is 3 m/s, to what maximum height above the ground does it roll up the incline? The ball is a hollow sphere with a moment of inertia I=(2/3)mr2 (m is the mass of the ball, r

    asked by Alex
  261. English

    1.I cooked kimchi fried rice. 1-1. Kimchi fried rice was cooked by me. 2. I cooked extra rice for guests. 2-1. Extra rice was cooked for guests by me. 2-2. Extra rice was cooked by me for guests. (Are the passive forms all grammatical? Which one is right,

    asked by rfvv
  262. Math (Pre-Calculus)

    Find an equation of the line containing the points (8,-6) and (8, -4) so far i've tried y-y1=m(x+x1) but currently cannot get the answer....T-T the answer is suppose to be x=8 plz show the work so i can study form it and do it myself the next time... thnx

    asked by K.C
  263. Language Arts 8th grade

    Archaic-that which has ceased to be used except for special purposes as in poetry or church ritual some words like thou are archaic list as many words that you can think of that would be considered archaic. i cant think of anymore please help!

    asked by Courtney
  264. reading

    Is there a verb adjective or adverb for the word synonym

    asked by Joelseph
  265. PHYSICS

    The chin-up is one exercise that can be used to strengthen the biceps muscle. This muscle can exert a force of approximately 800 N as it contracts a distance of 7.5 cm in a 78 kg male. How much work can the biceps muscles (one in each arm) perform in a

    asked by Petrik
  266. math!!!!!!! help

    Traniers measure horses in hands the distance acrosss an adults plam the average height of a horse is 15 1/2 hands if a hand is bout 1/3 foot how tall is an average horse in feet?

    asked by niki
  267. Chemistry

    12. Solutions cans be supersaturated if they contain more dissolved solute than saturated solutions under the same conditions.- T? 16. Heating a solution decreases the solubility of the gas in it.- T? Thanks -MC

    asked by mysterychicken
  268. costing

    what are major types of expenditure associated in maintaining stocks.

    asked by amoabeng
  269. Algebra

    Use the Gauss-Jordan method to invert 1 0 0 2 -1 0 0 0 1 A1= 1 1 1 A2= -1 2 -1 A3= 0 1 1 0 0 1 0 -1 2 1 1 1 can someone help me to invert those matrix using Gauss-Jordan method

    asked by Ryder
  270. English

    1. Do you have anything to say about this? 2. Do you have to say anything about this? (Are both grammatical and the same?) 3. We have many things to do. 4. We have many things that we have to do. 5. We have many things that we will do. (If we pharphrase

    asked by rfvv
  271. English

    1. I have many friends to meet. 2. I have many friends that I have to meet. 3. I have many friends that I will meet. 4. I have many friends that I can meet. (What does #1 mean? Does #1 mean #2, 3, or #4?)

    asked by rfvv
  272. Biology

    also located on the X chromosome is a gene that codes for deafness. This gene is recessive. a black female cat that is heterozygous for deafness (Dd) is crossed with a yellow cat that is not deaf What is the Punnet Square . and must use two letters on the

    asked by Emily
  273. English

    On the table lies a very hard old bookmark. 2.You should not fold any pages in a library book. 3. Lately, I have been reading more nonfiction books. 4. During the week Mom is entirely too busy to read. 5. She recommends especially enjoyable books to all

    asked by Hayley
  274. math

    find x x^2-3x-4 = x^2 +11x+24 please can you show me you method thanks

    asked by peter
  275. Chemistry

    Data: C(graphite) + O2(g) forms CO2 (ga) Delta H = -393.5kJ H2(g) + 1/2O2(g) forms H2O(l)Delta H = 285.8kJ. CH3OH(l) + 3/2O2(g)forms CO2(g) + 2H2O(l)Delta H = -726.4 Using data above, calculate the enthalpy change for the raction below C(graphite) + 2H2

    asked by lavonne
  276. 5th grade math

    circle the best estimate for each problem. then solve. 52.2*39.7=_____ A.2,00 B.20,000 C.200,000 Solution:_______________________. 148.3*232.51=____ A. 3,000 B.30,000 C.300,000 Solution ________________. please! show me work too so, i can practic for this

    asked by pat
  277. PHYSICS

    A hummingbird is able to hover because, as the wings move downwards, they exert a downward force on the air. Newton's third law tells us that the air exerts an equal and opposite force (upwards) on the wings. The average of this force must be equal to the

    asked by Petrik
  278. Statistic

    the percentile rank of t5 = 1.476

    asked by vee
  279. ap calc bc

    hi! ok, i know that deriv(cscx) = -cscxcotx and that deriv(cos) = -sinx deriv(cotx) = -((cscx)^2) my question is: is this (statements below) correct? antideriv(cscxcotx) = -(cscx) antideriv(sinx) = -cosx antideriv((cscx)^2)= -cotx were those

    asked by APpreciate student
  280. chemistry

    What volume will 0.35 mol of Ar occupy at -10 degress C and 0.96 atm?

    asked by Tara
  281. physic

    Six roller-coaster carts pass over the same semicircular "bump." The mass M of each cart (including passenger) and the normal force n of the track on the cart at the top of each bump are given in the figures. Iam given the force in N of the cart at the

    asked by mike
  282. English

    1. Do you do any volunteer work? How about your friends? 2. Yes, I do. They do volunteer work, too. 3. No, I don't. They don't do volunteer work, either. (Are the answers grammatical?) 4. Do you do any volunteer work? 5. Are you doing any volunteer work?

    asked by rfvv
  283. AP calculus BC

    hello i know that deriv(cscx) = -cscxcotx and that deriv(cos) = -sinx deriv(cotx) = -((cscx)^2) my question is: is this (statements below) correct? antideriv(cscxcotx) = -(cscx) antideriv(sinx) = -cosx antideriv((cscx)^2)= -cotx were those antiderivatives

    asked by CALLIE CALC
  284. physics

    A 70kg man stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 90kg Is the elevator acceleration up or down, is the elevator moving up or down?

    asked by help
  285. chemistry

    When an evacuated glass bulb at 75.0 ml volume is filled with a gas at 25.3 degrees C and 747 mm Hg, the bulb gains 0.0114g. The gas is?

    asked by Tara
  286. chemistry

    When 2.53 g of NaOH(s)(40.0g/mol) dissolves in 100.0 g of water, the temperature of the solution changes from 20 degrees C to 26.3 degrees C. Calculate qrx in KJ/mol specific heat of the solution is 4.18 J/(g*K)

    asked by Tara
  287. science

    for radio waves with a frequency of 454.4 nm, determine the wavelength, the energy of a photon and the energy of one mole of photns in kj/mol

    asked by sammy
  288. social studies

    As a result of reengineering, work processes are: radically redesigned and simplified. turned over to outside companies. made much more complex. controlled by computer programs.

    asked by dina
  289. Religious Education

    how religion affects clothes

    asked by Tiffany Morrison
  290. chem

    calculate the molality of a solution that has 1.02kg sucrose (C12H22O11), dissolved in 554g water.

    asked by julia
  291. math

    correct or ot correct? 15 - 10 4/5? and -1 7/8 x 2 3/5 = -180?

    asked by Anonymous
  292. Pre Calc!!!!!!!!!! test tom!!

    Square root of x is the equation. Translate: down seven reflected over y axis left five ANSWERS: square root of negitive x+5)-7 negitive square root of x+5)-7 square root of x-5)-7 square root of x+5)+7 IM not getting any of these HELP!!!

    asked by Rose
  293. math/algebra

    Trains A and B are traveling in the same direction on parallel tracks. Train a is traveling at 100 mph and train B is traveling 120 mph. Train a passes a station at 7:20 P.M. If train B passes the same station at 7:35 P., at what time will train B catch up

    asked by solve this please.
  294. math/algebra

    3X+4Y

    asked by help, solve this please.
  295. English

    Can you please check if the following sentences are correct? Thank you very much. 1)The Romantics paid attention to the country as a place where man's relationship with nature was still intact. 2)Wordsworth had a pantheistic view of nature, according to

    asked by Franco
  296. math

    1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 115

    asked by Lacy
  297. Chemistry

    I have an oxide material with an unknow metal. I know that the moles of the oxygen and the metal are 0.09 When I calculate the atomic weight my professors says I should get number in the 50's and 60's I don't. I get 16, which is oxygen. How do I figure out

    asked by Leandra
  298. math

    Solve by substitution method: 3x+8y=33 x=31-6y

    asked by anonymous
  299. Finished essay, needs Tutor's oppinion

    Here is my finished essay. Could I please have the teachers opinnion on it? Link: //tinyurl( Dot) com/25cnjx8

    asked by Allyson
  300. science

    Explain why turning is a form of acceleration?

    asked by Chloe
  301. Math

    What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means in terms of how the parametric and symmetric equations of the line should look. Please help.

    asked by Kate
  302. Chemistry

    What is the pressure of the gas if 0.145 mol occupies 227 mL at 35°C?

    asked by Meaghan
  303. math

    2 3/4 - 6 3/5y I thought y= 5/11 but no?

    asked by Anonymous
  304. accounting

    From the following transactions, state which account will be debited and which account will be credited by filling up the appropriate boxes. S.No. Transactions Accounts involved Application Reason with respect to Rules of Debit and Credit Sample Example

    asked by pinki
  305. 10th grade

    How do I answer and graph this problem 4x + 3y = 4

    asked by Mara
  306. Chemistry

    What is the temperature (in kelvins) at which 0.0260 mol occupies 1.00 L at 0.563 atm?

    asked by Emily
  307. Math

    Your teacher has a large box containing an equal number of red and blue folders. There are 24 students in your class. The teacher passes out folders at random. Ten students receive a red folder. Compare the experimental probability of recieving a red

    asked by Tori
  308. math

    merle travelled six hundred twenty-three miles. hannah travelled eight hunderes one miles. hannah travelled how many more miles then merle?

    asked by jojo
  309. physic

    if a tape is wound around a cylinder at a rate of 1 rad/s for a half hour, if each rotation deposits one layer of tape and if the final difference between inner ad outer radii of the winding in one cm, what is the thickness of the tape?

    asked by angie
  310. math

    1 1/2 m= 1 3/4 m= 1 1/6?

    asked by Anonymous
  311. Chemistry

    What is the number of moles in 1.00 L at -7°C and 725 torr. Remember 1atm = 760 torr?

    asked by Haylee
  312. 5 th grade math

    write the nmber that has 6 in the ones place, a digit in the hundred-thousands place the is half the digit in the ones,the smallest odd digit in the thousands place, 4 in the tenths place 1 in all other places -,---,---.--?

    asked by pat
  313. farmington

    Howard the soda jerk at Bea's diner slides a 0.60-kg root beer from the end of the counter to a thr=irst customer. A force of friction of 1.2 N brings the drink to a stop right in front of the customer.

    asked by Anonymous
  314. English

    I forgot to include the following examples. I really hope youcan have a look at them, too. 1) Like the stars in the Milky Way, the daffodils are part of a natural order determined by a natural law. 2) The daffodils are presented as living beings that

    asked by Franco
  315. Math

    What is the approximate length of the diagonal of a square if the perimeter of the square is 12ft? a. 1.7ft b. 3.5ft c. 4.2ft d. 12.7ft and how?I was confused on this question I tried to subtract and divide but nothing work.

    asked by Sherkyra
  316. math!!!!!!! help agian

    1/4*50/1= (2 12/4)=(2 3/4)

    asked by niki
  317. ELA

    *REDO*This Is a Argumentative Essay On Plymouth,Massachusetts, Can you see if I need some corecctions? “The cowards never started and the weak died along the way” It is applied to the Plymouth Pilgrims, who clearly had obtain courage, strength, and

    asked by Veronica
  318. math

    factorise 9x^2-29x+34 thanks

    asked by peter
  319. math

    Round the nearest quotient to the nearest tenth 0.47 + 0.03

    asked by Anonymous
  320. geometry

    What does this symbol mean in Geometry ¡ü?

    asked by Rhonda
  321. math

    A tugboat can go 10 miles upstream in the same time as it can go 15 miles downstream. If the tugboat goes 12 miles per hour in still water, what is the speed of the current?

    asked by Dave
  322. Chemistry

    Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this radiation that causes dyes to fade and your skin to develop a sunburn. If you are bombarded with 1.00 mol of photons with a wavelength of 288 nm, what amount

    asked by Noelle
  323. math

    In a standard deck of playing cards there are 13 hearts. If 3 cards are drawn without replacement what's the probibility that all 3 cards will be hearts?

    asked by Alex
  324. CHEMISTRY

    1)If 36 mL of KMnO4 solution are required to oxidize 25 mL of 0.02932 M NaC204 solution, what is the concentration of the solution? 2)A Certain brand of iron supplement contains FeSO4-7H2O with miscellaneous binders and fillers. Suppose 22.93 mL of the

    asked by june
  325. math

    having trouble factoring this particular problem x^2-12x+36-49y2 factored by grouping x(x-12) (7y-6) (7y+6) the answer in the book has (x-6+7y)(x-6-7y) confused.

    asked by lomas
  326. Poems

    I won the competition for poems to go on tho grade or school!!!!!! I won with the poem: Magic chant, But I need a longer poem maybe?? Can anyone post a site with medium and long length poems please?? Thanks, Erin

    asked by Erin
  327. math.

    -0.2x

    asked by heather.
  328. US History

    2. The Geneeva Protocols outlawed "weapons of mass destruction." Give three reasons why you think this policy was correct. Need help answering this. Thanks -MC

    asked by mysterychicken
  329. math

    Which of the is a rational number but not an integer? a.0 b. 9/10 c -18 d. 2.52943...

    asked by Akema
  330. History

    What is the Battle of Bunker Hill? Explain with 200 words.

    asked by Sara
  331. 6th grade

    What fraction of a circle is 33 1/3 of a circle?

    asked by Linda
  332. history

    .How did the battle between the Monitor and the Virginia change naval warfare?

    asked by HELP!!!
  333. 8th grade

    what is the riddel books never written

    asked by willy
  334. math

    explain whether each set is closed under the given operation {-1,0,1}multiplication? please help and tell me the steps thanks!

    asked by janey
  335. physics

    A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?

    asked by linda
  336. social studies

    To develop your self-confidence: learn to rely mostly on intuition. develop a base of knowledge for problem solving. use enough negative self-talk to appear humble. downplay acquiring a lot of facts.

    asked by dina
  337. Earth/Environmental Science

    _______ currents are currents that involve warm water flowing in different directions at different speeds close to the top of oceans.

    asked by Anonymous
  338. algebra

    what is the height of a solid with a volume of 120 m3 and a base of 30 m2

    asked by rae
  339. math

    explain whether each set is closed under the given operation {-1,0,1}multiplication?

    asked by janey
  340. English

    In Arthur Miller's "Death of a Salesman" What were the job rights, or Willy Loman?

    asked by Natasha
  341. IB Math

    If AB is the same length as CD, BC is 2 cm shorter than AB and BE is 7 cm in length, find the length of AB.

    asked by Victoria
  342. chemistry

    Suppose the ΔGof, ΔHof, and ΔSo are available and valid at 298 K. Which equation(s) could be used to calculate the change in Gibbs Energy if all product and reactant concentrations (pressures) are 1 M (1 atm) and the temperature is 298 K? Choose all

    asked by Megan
  343. Physics- Work

    A worker pushes a 1.50*10^3 N crate with a horizontal force of 345 N a distance of 24.0 m. Assume the coefficient of kinetic friction between the crate and the floor is 0.220. a. How much work is done by the worker on the crate? b. How much work is done by

    asked by Pablo
  344. language arts

    what is the affix element for the word synonym and what is the affix meaning

    asked by Courtney
  345. french

    I need someone to review my work to make sure I'm doing this correctly. I have to rewrite the following sentences replacing the direct object nouns with direct object pronouns. 1. Je veux voir Paul. Je le veux voir. 2. Elle monte l'escalier. Not sure on

    asked by Kody
  346. phys

    A mechanic pushes a 2.0 103 kg car from rest to a speed of v, doing 5350 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v m/s (b) the horizontal force

    asked by hpj
  347. math

    last one on this topic i promise ;-) 4X-14+2X^3-7x^2 rearrange by degree 2X^3-7X^2+4X-14 and them im stuck..

    asked by lomas
  348. physics

    A person pulls with a force of 40 N on two boxes at rest. The top box is 3.0 kg and the bottom box is 6.0 kg. The coefficient of kinetic friction between the floor and the larger box is .20 and the angle is 30 degrees. a) if the smaller box doesn't slide

    asked by caroline
  349. math111(3)

    The function f(x)=(x+6)^2 is not one-to-one. Choose the largest possible domain containing the number 0 so that f(x) restricted to this domain is one-to-one. The largest possible domain is [-6,infinity) If the restriction function is written F, then

    asked by Jessica
  350. statistics

    The heights of 10000 individuals are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches. Find the probability that a person picked at random from this group will be between 65 and 74 inches tall.

    asked by sohail
  351. AP PHYSICS

    A stone is tied to a string (length = 0.450 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the

    asked by PLEASE HELP NEED IT PLEASE
  352. English

    Does my thesis sound ok? Intelligence is a word that describes the ability of an individual to perform desired tasks well.

    asked by Larry
  353. what is rule?

    input 6 10 16 output3 5 8

    asked by mike
  354. math

    explain whether each set is closed under the given operation {-1,0,1}multiplication?

    asked by janey
  355. Math - derivative of f(x) (check)

    f(x)= (x^2-1)^3,is its derivative f'(x)= 6x^5 -12x^3 + 6x. Is there an alternative answer, because a computer generated answer is diff then mine. please help.

    asked by Anonymous
  356. Econ 103

    Some of the negatives that Human Capital or ( 100 unemployed scientists who moved to your town) what effect would this have on your town. Bellingham, WA

    asked by Todd Carlson
  357. Market Power

    QuadPlex Cinema is the only movie theater in Idaho Falls. The nearest rival movie theater, the Cedar Bluff Twin, is 35 miles away in Pocatello. Thus QuadPlex Cinema possesses a degree of market power. Despite having market power, QuadPlex Cinema is

    asked by raja
  358. statistics

    The heights of 10000 individuals are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches. Find the probability that a person picked at random from this group will be between 65 and 74 inches tall.

    asked by sohail
  359. substitution method

    Solve by substitution method please help me solve this. I do not know how to do this at all. The question is 3x+8y=33 and x=31-6y I know that I have to plug x into the first x like 3(31-6y)+ 8y = 33 but i do not know what to do from there.

    asked by anonymous
  360. math

    -3/4x + 1/4x= -6 how would I work this problem?

    asked by Anonymous
  361. math

    for the following equations, write a word problem draw a picture, and find the solution to the equation. 5/12 - 1/3=? I know the answer is 1/12 but am stumped on how to write the word problem and draw a picture

    asked by m
  362. Econ 103

    Consider 100 NASA scientists migrating to Bellingham with no jobs. How this would impact the city? will they create unemployment rate to go up or down? will they improve the life of others or compete away their wealth?

    asked by Todd Carlson
  363. Science

    What is an area without pressure called?

    asked by Shannon
  364. chemistry

    Calculate the sodium ion concentration when 72.5 mL of 4.4 M sodium carbonate is added to 32.6 mL of 2.5 M sodium bicarbonate.

    asked by justin
  365. Math

    She does sit-ups.The table shows how long it takes her to do different numbers of sit-ups. # of Sit-Ups | 10. | 30. |. 50. |. 200 | Minutes. |. 2. |. 6. |. 10. |. 40 | How long do you predict it will take her to do 120 sit-ups?

    asked by Teirouyuu
  366. 6th grade

    How do I work a problem like this? 5/8 + m = 1

    asked by Mary
  367. physics

    Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km. Make a

    asked by Mary
  368. 3rd grade

    what number is 30 more than 432?

    asked by kevin
  369. english

    in act 3 of Mactbeth, what value does Macbeth put on his soul?

    asked by 19
  370. math

    simplify the following expression x+4(y+8x) Write the property that justifies each step.

    asked by Shamira
  371. US History

    10. Which best describes the Great Migration? a. the increase in European immigration during World War I b. the movement of African Americans to northern cities c. the movement of women into jobs formerly held by men d. the progress of Allied troops across

    asked by mysterychicken
  372. calculus

    If a is a vector parallel to the xy-plane and b is a vector parallel to k, determine |a ~ b| when |a| = 3 and |b| = 2. 1. |a ~ b| = −6 2. |a ~ b| = −3ã2 3. |a ~ b| = 3 4. |a ~ b| = 3ã2 5. |a ~ b| = 0 6. |a ~ b| = −3 7. |a ~ b| =

    asked by Bob
  373. Chem 110

    Define of Standard solution

    asked by Jackie
  374. calculus

    Find an equation for the surface consisting of all points P(x, y, z) equidistant from the point P(0, 1, 0) and the plane x = 3. Answer Choices: 1. y2 + z2 − 6x + 2y − 8 = 0 2. x2 + z2 + 6y − 2z − 8 = 0 3. y2 + z2 + 6x − 2y − 8 = 0 4. x2 + z2

    asked by Bob
  375. science

    Why might I see differing results for yeast grown in glucose vs sucrose. Is carbon dioxide produced when germinating peas are boiled?

    asked by Lovey
  376. business

    Give an example of a monopoly found in South Africa

    asked by Faith
  377. I have already answered half of it. MATH!!

    1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 115

    asked by lee
  378. Algebra

    If W1,w2,w3 are independent vectors, show that the sums V1=W2+W3, V2=W1+W3 and V3=W1+W2 are independent . (Write C1V1+C2V2+C3V3=0 in terms of the W¡¦s. Find and solve equation for the C¡¦s)

    asked by traxx
  379. US History

    26. What were the major factors which shaped American foreign policy in the period 1890 to 1900? Show how at least one of these factors influenced our actions in the Panama Canal controversy. Thanks -MC

    asked by mysterychicken
  380. accounting

    from the following transactions state which account will be debited and which will be credited by filling up. S.No. Transactions Accounts involved Application Reason with respect to Rules of Debit and credit Sample Example Mr. X started business with cash

    asked by pinki
  381. 8th grade

    Please help me how you get the answer. PLEASE I NEED HELP. A triangle sail has a perimeter of 25 m. Side a is 2 m shorter than twice side b, and side c is 3 m longer than side b. Find the length of each side. Thank you ver much for helping me

    asked by Glenda
  382. Physics

    The centers of a 13 kg lead ball and a 130 g lead ball are separated by 5.0 cm. What gravitational force does each exert on the other?

    asked by mike
  383. Chemistry

    A solution of ethanol (C2H5OH) in water is prepared by dissolving 61.9 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?

    asked by Andrea
  384. Physics

    A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular path?

    asked by Michelle
  385. physics

    Give an example from daily life which shows that the celcius temperature scale is not an absolute temperature scale.

    asked by Dimitris
  386. Biology

    Why do we perform aerobic respiration when we're resting and both aerobic and anaerobic respiration while we're running?

    asked by Emily
  387. chemistry

    Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Ten tablets with total mass of 0.5797 g were dissolved in water. The solution was then oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium

    asked by Anonymous
  388. physics

    Give an example from daily life which shows that the celcius temperature scale is not an absolute temperature scale.

    asked by Dimitris
  389. spanish

    Yo ____ está mejor o peor. a. no sé b. no sé si c. sé d. no lo sabía A?

    asked by Lily
  390. math

    input 6 10 16 output 3 5 8 2nd grade,what is rule? thanks

    asked by mike
  391. 8th grade

    i have a project and its about genres and i would like to know what are five characteristics of realistic fiction? Thanks

    asked by Taavon 8
  392. Physics - inverse square law(check)

    Two identical objects have charges from +6.0*10^-6 and -2.0*10^-6, respectively. When placed a distance d apart, their force of attraction is 2,0N. If the objects are touched together, then they moved to a distance of separation of 2d, what will be the new

    asked by Anonymous
  393. French

    I have to rewrite this following sentence replacing the direct object nouns with direct object pronouns. Elle monte l'escalier. How would you do it???

    asked by Kody
  394. science

    How does the human body respond to cuts/wounds on the body -- immune system response? What causes the change in the skin?

    asked by Irene
  395. math

    -1 divided by -2 2/7

    asked by Anonymous
  396. Chemistry

    We have 250. ml of He at 2.56 atm and 25 degrees C. What is the final volume if we heat the sample to 150 degrees C while we compress the volume to 100. ml

    asked by Tara
  397. physics

    A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?

    asked by Jackson
  398. math

    9-5(-2=x)-3x

    asked by Lalliea
  399. Chemistry

    How many L of O2 are produced when 2.53 g of KClO3 (122.55g/mol) reacts at 0.934 atm and 354 K?

    asked by Tara
  400. economics

    suppose that demand increase by 10% and supply increase by 50%. what would you expect to occur in the market for the good?

    asked by Laura
  401. physics

    If a man weighs 853.0 N on Earth, what would he weigh on Jupiter where the acceleration due to gravity is 25.4 m/s2?

    asked by Jackson
  402. AP calculus

    Find the equation of the normal to the curve f(x) = 3cos(2x) at the point x = 0. In class, we learnt to find the derivate of the function, which would represent the slope. After I did that, I found the slope to be 0.. but that is not what my graphing

    asked by cel
  403. social studies

    what do econmics mean?

    asked by yasmine
  404. Math

    What is the function that describes the sequence 1/2, 1, 3/2 and 2?

    asked by Jared
  405. Math

    Deborah deposits $200 into an account that pays simple interest at the rate of 7%. How much will she have at the end of 4 months?

    asked by Terrence
  406. algebra help, please :)

    The output of a function is 24 less than 9times the input write an equation for the function described. b) use your equation to find the input when the output is -10 Could someone help me? Thanks!

    asked by Allyson
  407. social studies

    all northern states outlawed slavery by state constitution in 1820. what effect did this have on sectionalism in america?

    asked by pjl
  408. History

    -this was the second question -when FDR decided not to take part in helping the global depression, I was wondering why when the US withdrew from exchange-rate stabilization, how was this a bad thing for other countries? why couldn't they continue what they

    asked by Amy
  409. Chemistry

    Can anyone tell me why the answer that I got here is not correct? Pb(s) + AgNO3(aq) yields Ag(s) + PbNO3(s)

    asked by Josh
  410. 4th grade

    making big arrays

    asked by gera
  411. money and banking

    you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return.

    asked by Jaye
  412. math

    correct or not? 1. 2k = 5/6 k= 5/12? 2.3b= 4/7 b= 4/21? 3. 2/3 d = 5/8 d= 15/16? 4. 2/7 a = 5/8 a= 2 3/16? And do I need to simifly?

    asked by Anonymous