Questions Asked on
March 22, 2010

  1. chemistry

    A certain reaction has a delta H= -75 kJ and an activation energy of 40 kJ. A catalyst is found that lowers the Activation energy of the forward reaction by 15 kJ. What is the activation energy of the reverse reaction in the presence of this same catalyst?

    asked by josh
  2. Chemistry

    Write the 12 mole ratios that can be derived from the equations for the combustion of isopropyl alcohol. 2 C3H7OH(l) + 9 O2(g) ==> 6 CO2(g) + 8 H2O (g)

    asked by Jack
  3. chemistry

    The combustion reaction of acetylene gas is represented by this equation: 2C2H2(g) + 5 O2(g) ==> 4CO2(g) + 2H2O(g) How many grams of CO2 and grams of H2O are produced when 52.0g C2H2 burns in oxygen?

    asked by Danny
  4. 6th grade - English

    AAAAHHHH!!! "Antonyms" Antonyms are words that are opposite in meaning, like tall/short or laugh/cry. Listed below are pairs of antonyms. However, all the vowels are missing. See if you can separate each pair of antonyms and replace the missing vowels. (i

    asked by Amy
  5. Physics

    The mass of a paper clip is approximately 1. 1 x 10^.6 kg 2. 1 x 10^3 kg 3. 1 x 10^-3 kg 4. 1 x 10^6 kg

    asked by Priscilla
  6. Changes in Matter

    Which of the following everyday activities are physical changes, and which are chemical changes? a)salting ice on a driveway b)burning leaves c)mixing sand with soil d)composting cut vegetation e)using a glue gun a = physical b = chemical c = ? d = ? e =

    asked by Sara
  7. Chemistry

    The combustion reaction of acetylene gas is represented by this equation: 2 C2H2(g) + 5 O2(g) ==> 4 CO2(g) + 2 H2O(g) How many grams of CO2 and grams of H2O are produced when 52.0g C2H2 burns in oxygen?

    asked by Ralph
  8. Physics

    The centers of a 14 kg lead ball and a 120 g lead ball are separated by 9.0cm .What gravitational force does each exert on the other?

    asked by Nicole
  9. Chemistry

    Pure benzene has a normal freezing point of 5.50 degrees Celsius. A solution containing 11.4 grams of a molecular substance dissolved in 150.0 grams of benzene (Kf=5.12C/m) has a freezing point of 1.20 degrees Celsius. What is the molar mass of the solute?

    asked by Katelynn
  10. Physics

    Two charged Ping-Pong balls separated by a distance of 1.20 m exert an electric force of 0.0300 N on each other. What will be the force if the objects are brought closer, to a separation of only 30.0 cm? _____N

    asked by Dar
  11. chemistry

    What is the net ionic equation for the reaction of H2SO3 with Ba(OH)2?

    asked by khin
  12. Chemistry

    at 23C the reaction CaCrO4 -> Ca2+ + CrO42- has an equilibrium constant of 7.1 x 10-4. what are the equilibrium concentrations of Ca2+ and CrO42- in a saturated solution?

    asked by Ry
  13. Chemistry

    NaHCO3 + H2SO4 Na2SO4 + H2O + CO2 Use minimal integer numbers to balance the reaction. Include physical states in your answer.

    asked by Khin
  14. CHEM

    how many gram of potassium bromide can be made from 13.7 grams of potassium and unlimited bromide

    asked by Sienna
  15. Chemistry

    0.500 mol of Ca(IO3)2 contains ------ mol of iodine, I; to supply this much iodine,----- g of calcium iodate are needed. [Iodised salt contains a trace amount of calcium iodate, Ca(IO3)2, to help prevent a thyroid condition called goitre.]

    asked by Zakaria
  16. Changes in Matter

    Which of the following are examples of a physical change? a)change in physical state b)change in size or shape c)change in properties d)change in texture e)change in physical quantities f)change in substances Answer: a, b, and d Please correct me if I'm

    asked by Sara
  17. Chemestry

    the solubility of a gas is 0.34g/L at STP. What is it's solubility at a pressure of 0.80 atm and the same temperature?

    asked by David
  18. 3rd grade

    Mazie counted her dimes. When she put them in groups of 4, she had 2 left over. When she put them in groups of 5, she had one left over. What is the smallest number of dimes she could have, if she has more than 10

    asked by Tonya
  19. Probabilities (Math)

    An experiment consists of tossing a coin 14 times. (a) How many different outcomes are possible? (b) How many different outcomes have exactly 9 heads? (c) How many different outcomes have at least 2 heads? (d) How many different outcomes have at most 10

    asked by Shane
  20. chemistry

    When methanol undergoes complete combustion, the products are carbon dioxide and water. 2CH3OH (l) + 3O2(g) --> 2CO2(g) + 4H2O (g). How much water ( in grams) can you maximally produce if you burn 50g of methanol? In real experiment, you isolate 10 mL of

    asked by Monica
  21. Physics

    Two charged dust particles exert a force of 3.8 10^-2 N on each other. What will be the force if they are moved so they are only one third as far apart? ________N

    asked by Dar
  22. macroeconomics

    In each of the following cases, either a recessionary gap or inflationary gap exists. Assume that the aggregated supply curve is horizontal so that the change in real GDP arising from a shift of the aggregated demand curve equals the size of the shift of

    asked by Jacqui
  23. Changes in Matter

    Which of the following geological changes are physical changes and which are chemical changes? a)formation of a limestone cave b)creation of a canyon by a river c)wearing of rocks by wave action d)destruction of lakes by acid rain e)heaving of the ground

    asked by Sara
  24. AP Chemistry

    A solution is prepared by mixing 0.0200 mol CH2Cl2 and 0.0500 mol CH2Br2 at 25°C. Assuming the solution is ideal, calculate the composition of the vapor (in terms of mole fractions) at 25°C. At 25°C, the vapor pressures of pure CH2Cl2 and pure CH2Br2

    asked by Sarah
  25. Courses *URGENT*

    I have to complete a course selection form for school but I'm having some trouble understanding some of the courses. Can someone please help me please? Science and Technology: This is a science course provided to meet the needs of students requiring a

    asked by John
  26. math

    How do I convert the polar equation r - 3cos(theta) = 5sin to cartesian equation form?

    asked by karen
  27. math

    In triangle ABC, sin A = 0.7 and sin B = 0.3 and side a = 12. What is the value of side b?

    asked by Paula
  28. Chem

    At a particular temperature, Kc = 54 for the reaction If 1.0 mole of H2 and 1.0 mole of I2 are placed in a 5.0 L container, what would be the equilibrium concentration of HI?

    asked by CC
  29. Math(Please help)

    use trigonometric identities to transform one side of the equation into the other. cos Q sec Q = 1

    asked by Abbey
  30. Chemistry

    when dissolved in an aqeous solution, which of the following salts will yield an acidic solution? NH4Cl, NaClO4, Na2S, MgBr2, Ba(CH3CO2)2

    asked by james
  31. English II

    One way to make the overall message of this article more objective would be to. Select all that apply remove the quality statements make more quality statments add alternative opinions remove any inaccurate information none of the above

    asked by Betty
  32. math word problem

    how many ways can you arrange 6 books on a shelf horizontally?

    asked by Paula
  33. 5th grade MATH!!!!!

    Can a line segment have two midpoints? EXPLAIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    asked by Cameron
  34. math

    The vertex of a parabola is(-2,-4). One x-intercept is 7. What is the other x-intercept?

    asked by becca
  35. physics

    Two charged spheres are 18.0 cm apart. They are moved, and the force on each of them is found to have been doubled. How far apart are they now? ______cm

    asked by Dar
  36. International Trade-Economics

    The demand and supply curves for an import-competing industry in a country are given by: D = 500 – 10P, S = 100 + 10P. Similarly, the respective demand and supply curves of foreign country for this industry are given by D* = 400 – 10P, S* = 200 + 10P.

    asked by JP
  37. Chem

    A mixture is prepared with [CO] = 0.035, [Cl2] = 0.015, and [COCl2] = 0.95. It is known that Kc for the equilibrium is 1.2 x 10-3 at 400OC. Predict what will happen. Choose one answer. a. The reaction is at equilibrium so no net reaction occurs. b. The

    asked by CC
  38. Chemistry

    H1+(aq) + Fe(s) ==> H2(g) + Fe2+(aq) I am trying to balance this equation...but I am not sure how to balance the H's. I have the half rxns as e- + H+(aq) ==> H2(g) Fe(s) ==> Fe2+(aq) + 2e- I multiplied the reduc. rxn (top) by 2 so I could get rid of the

    asked by Val
  39. Classroom Management Techniques

    Hi I need some help on finding the correct answers,I got these wrong, my answers were : 2c/4c/7d/9a/13d/14c/16c/19b/20c Thanks 2. According to the assertive discipline model, good classroom management is designed to do what? A. Teach students to become

    asked by Deya
  40. Chemistry

    2NaHCO3 + H2SO4 ->Na2SO4 + 2H2O + 2CO2 Can u tell me physical states of the equation?

    asked by Khin
  41. Physical science

    Why don't you move when you pull a door open and the force the door exerts on you is equal to the force you exert on the door?

    asked by Taylor
  42. math

    container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am

    asked by Katherine
  43. physics

    A bird of mass 0.8kg hovers upwards by beating the mass of effective area 0.5m^2. (i) what is its upthrust? (ii) estimate the velocity imparted to the air by beating of the wings assuming the density of air at STP to be 1.3kg/m^3.

    asked by Edwin
  44. math

    Convert the polar equation r-3cosx = 5sinx in Cartesian equation form.

    asked by dan
  45. Changes in Matter

    Which of the following kitchen activities are physical changes, and which are chemical changes? a)cooking bacon-chemical b)making icing-physical c)baking a cake-chemical d)using oven cleaner-chemical e)making whipped cream-physical Please correct me if I'm

    asked by Sara
  46. chemistry

    how many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees celsius to 85 degrees celsius?

    asked by brit
  47. Math

    In a certain coastal basin, the sea water contains 3.5 grams of salt per 1000 milliliters of water. How many grams of salt would be in 2 liters of the sea water.

    asked by Lyndse
  48. home economics

    describe disposal of fullness - gathering, easing, topstitching

    asked by Anonymous
  49. geometry

    simplify thr ratio 6yd/10ft

    asked by tommira
  50. Pre-Cal

    evaluate the trigonometric functions by memory or by constructing appropriate triangles for the given special angles. a) csc 30 degrees b) sin pi/4 = sqrt2 / 2 I just do not know how to find csc 30 degrees.

    asked by Abbey
  51. Math

    What is the measure of the dent angle for a star-shaped polygon with 8 points and a point angle of 20 degrees?

    asked by Lyndse
  52. physics

    If i take the inverse of a value, what happens to its uncertainty? For example, if I have C +/- deltC and then i do 1/C. What happens to delta C? Thank you

    asked by jude
  53. MATH!!!

    An experiment consists of tossing a coin 14 times. (a) How many different outcomes are possible? (b) How many different outcomes have exactly 9 heads? (c) How many different outcomes have at least 2 heads? (d) How many different outcomes have at most 10

    asked by Janel
  54. how children learn

    Which of the following techniques will help to meet the student’s need for autonomy? A. Give them clear directions B. Show them a model of exactly what they’re to do. C. Give them choices. D. Give them deadlines

    asked by louise
  55. math word problem

    The sum of a number and its square is 72. What is the number? I took a guess at 8, but I don't know how to put it in an equation form.

    asked by Paula
  56. trig

    Is the somewhere where I could learn how to graph polar coordinates such as (1,pi/3)?

    asked by bill
  57. Chemistry

    C9H20 + 19/2O2 -> 9CO2 + 10H2O Please Can u find the physical states for this equation?

    asked by Khin
  58. English

    1. At Sora's school, the first period begins at 8:30 am. 2. The first class begins at 8:30 am at Sora's school. 3. School begins at 8:30 at Sora's school. Students should come to school by 8:30, and they should do self-study for 30 minutes. They take a

    asked by rfvv
  59. Math

    Find the volume of a cube with a cylindrical hole of diameter of 68mm? It is a perfect cube with each side of 84mm Thank you.

    asked by Lyndse
  60. Psychology

    Hello I to write a paper and part of the paper is asking for information I am not sure which way to go if some one can please help me with this I would appreciate it the section I am having a problem with is Explain the criticism of artificiality in the

    asked by Ann
  61. Chemistry

    During the preparation of K3[Al(C2O4)3].3H2O, NaOH was added slowly and with stirring over an approximately 10-minute period to a solution of Al2(SO4)3 solution. The combined solution was heated to almost boiling and left to stand for a few minutes. 1. Why

    asked by Alan
  62. math

    for the school play, 1 adult ticket cost $5 and 1 student ticket cost $3. twice as amny student tickets as adult tickets were sold. the total reciepts were $1650. how many of each kind of tickets were sold?

    asked by Anonymous
  63. geometry

    Your math classroom has 4 computers in it. There are 18 students in the class. What is the ratio of computers to students? whats the equation ?

    asked by Jay
  64. College Physics

    An electron is accelerated through 2550 V from rest and then enters a region where there is a uniform 1.30 T magnetic field. What are the maximum and minimum magnitudes of the magentic force acting on this electron?

    asked by Anonymous
  65. measurements

    What is 6ft in inch.

    asked by billie
  66. measurements

    What is 6 ft in decimeter and 6ft in centimeter

    asked by billie
  67. Chemistry

    Write a balanced chemical equation for each single replacement reaction. A) Au(s) + KNO3(aq) ==> ??? B) Al(s) + H2SO4(aq) ==> ???

    asked by Danny
  68. U.S. History

    Compare and contrast the initial formation of two states—Virginia and Pennsylvania—by evaluating and listing the similarities and differences of the first state constitution for each state. •Identify the date of each constitution and consider the

    asked by John
  69. Calculus

    Hi there,could you help me with the following questions; 1.) Analyze the key features (any asymptotes, intercepts, critical points) and then sketch the graph of the function f(x)= x-0.25/x^2 --> I am unsure about my answers could you tell me if I am

    asked by Karen
  70. geometry

    What is the probability of 2 randomly chosen angles being congruent in a general triangle?

    asked by Teresa
  71. geometry

    A standard doorway measures 6ft 8inches by 3ft. What is the largest dimension that will fit through without bending?

    asked by Corinna
  72. Math

    2.5 divided X = 5 2.5 times X = 5

    asked by Dee
  73. government

    A member of congress who votes based on the wishes of his or her constitutes operates in which of the following roles? a)Trustee b)Delegate c)Partisan d)politicol

    asked by Arnold Swagger
  74. Finite Math

    An experiment consists of tossing a coin 14 times. (a) How many different outcomes are possible? (b) How many different outcomes have exactly 9 heads? (c) How many different outcomes have at least 2 heads? (d) How many different outcomes have at most 10

    asked by Jared
  75. Chemistry

    This is the equation for the formation of Al(OH)3: 6NaOH (aq) + Al2(SO4)3 (aq) ¨ 2Al(OH)3 (s) + 3Na2SO4 (aq) Would any side products be formed if NaOH was added quickly into Al2(SO4)3?

    asked by Alan
  76. math

    you can draw one segment to connect two points and three distinct segments to connect three named points. how many segments can you drawto connect five points if no three of the points lie on the same line.........please help me i am confused

    asked by Katherine
  77. MATH - Can someone please help!

    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 70

    asked by KiKi
  78. MATH

    Maria found 1 penny on Mon under her pillow, 2 on Tuesday and 4 on Wed. On Thurs, Fri, Sat and Sun she found double the amount she found under the pillow she found the day before. how much money does Maria have on Sunday?

    asked by RAVI
  79. macroeconomics

    is this a recessionary or inflationary gap. aggregate supply curve is horizontal, change in real GDP arising from a shift of the aggregate demand curve = the size of the shift of the curve. Calculate both the change in government purchases of goods and

    asked by Jacqui
  80. Physics

    A 0.56-kg mass is suspended from a string, forming a pendulum. The period of this pendulum is 3.6 s when the amplitude is 2.2 cm. The mass of the pendulum is now reduced to 0.27 kg. What is the period of oscillation now, when the amplitude is 2.5 cm? Give

    asked by Angie
  81. Physics

    The displacement of an object in SHM is given by y(t) = (7.1 cm)sin[(1.64 rad/s)t]. What is the frequency of the oscillations in Hz? I'm completely stuck here. I was thinking that frequency = 1/t. I'm stuck with the information given. Please help!

    asked by Angie
  82. Biology

    There are 10 Characteristics of a living organism 1. Composed of one or more cells 2. evolve into a new type of organism 3. carries out and controls a variety of Chemical reaction 4. produces offspring resembling itself. What are 6 more.

    asked by Jenny
  83. measurements

    What is 8ft in decimeter and centimeter

    asked by billie
  84. computer programming

    Construct a structure chart, as well as a flowchart and pseudocode, for the following problem. Assume that each input record contains a taxpayer’s name, the value of a personal property belonging to the taxpayer, and a code defining the type of of

    asked by nina
  85. math

    you can draw one segment to connect two points and three distinct segments to connect three named points. how many segments can you drawto connect five points if no three of the points lie on the same line.........please help me i am confused

    asked by Katherine
  86. help

    the weather reporter pointed to the map and said today a blizzard blanketed the town of Preston under seven feet of snow.one eyewitness said it was the worst storm of the century.the low tomorrow will be an uncomfortable ten degrees above zero 1)this

    asked by Anonymous
  87. Geography

    10. How was the Great Leap Forward supposed to make China's production greater than that of the Western nations? a. by replacing private ownership of farms with common ownership b. by combining China's collectives into self-sufficient People's Communes c.

    asked by y912f
  88. world history

    What were stalins goals & what steps did he take to acheive them?

    asked by jenny
  89. Physics

    In a football game, a tackle running at a constant speed of 5 m/s tackles a stationary receiver. The two fly off horizontally at 4 m/s, before they hit the ground and begin to slow down. If the mass of the tackle is 105 kg, a.) What is the mass of the

    asked by Patrick Siy
  90. chemistry

    what volume should a 1.0L balloon at 25 degrees celcius and 1.00 atmosphere pressure be if immersed in liquid nitrogen (-196 degrees celsius, 1atm)?

    asked by finn
  91. Changes in Matter

    Which of the following are examples of a chemical change? a)corrosion reactions b)combustion reactions c)dissolving of sugar d)evaporation of water e)decaying reactions f)digestion of food Answer: a, b, c, e, and f Please correct me if I'm wrong, thanks

    asked by Sara
  92. algebra 2

    A cannonball is launched from a cannon on a wall. If the path is traced on piece of paper so that the cannon is situated on the y axis, the equation of the path is y= -1/600x^2 + 1/2x + 20. How high above the ground is the cannon.

    asked by DEE
  93. BUSINESS FINANCE

    John Smith wants $80,000 per year in his retirement. He plans to be in retirement for 30 years. He has 25 years to work. Assume an interest rate of 7% for the next 55 years. How much does he need to deposit at the end each year while he is working in order

    asked by Ashley
  94. English

    What does Bora do after school? 1. She goes to a drama club. 2. She goes to the drama club. (Which answer is right? Are both right?)

    asked by rfvv
  95. Calculus

    Differentiate x5^sqrt(x). Help please!

    asked by Stuck
  96. math

    container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am

    asked by Katherine
  97. English

    the video media yp club the print media yp club the information telecommunication yp the RCY club the English conversation club the environment guard club the quilt club the reading essay club / the reading and writing club the cartoon drawing club the

    asked by rfvv
  98. Gen. Chem

    To make a solution with a pH = 4.40 a student used the following procedure : a certain amount of sodium acetate along with 0.280 moles of acetic acid is added to enough water to make a solution of 1.00 L How many grams of sodium acetate were added ? Ka =

    asked by Rinzin
  99. math

    guess my rule with two rules

    asked by Jorge
  100. chemistry

    final mass initial mass CO2 mass (1.) 84.755 minus 85.672 = .917 (2) 84.733 minus 85.684 = .951 (3) 84.757 minus 85.707 = .95 what is maximum volume of vinigar that can be neutralized by one alka seltzer tablet and explain? Not sure how to get this

    asked by DEBBIE
  101. CHEM_

    if 16.5 of iron (II) sulfide contain 6.02 x 10^23 formula units, how many formula units of iron (II) sulfide are in 1.00 mL of iron (II) sulfide? The density of iron (II) sulfide is 4.84 g/cm^3

    asked by Sienna
  102. English

    How long is the history of wayang kulit? 1. It has a history of more than 1,000 years. 2. It is more than 1,000 years old. 3. It is more than 1,000 years. (Which answers are correct?)

    asked by rfvv
  103. Physics

    What is the speed of a wave with wavelength=150 m and T=9.8 s, when it is moving through water 40 m deep? What is its speed when the wave reaches water of 5 m depth?

    asked by Krysten
  104. Oceanography

    What is the speed of a wave with wavelength=150 m and T=9.8 s, when it is moving through water 40 m deep? What is its speed when the wave reaches water of 5 m depth?

    asked by Krysten
  105. SOC-402

    In what ways is the health problem affected by the family, the economy, and the polity?

    asked by meshelle
  106. physics

    Two parallel wires which carry currents I1 = 69 A and I2. The top wire is held in position, the bottom wire is prevented from moving sideways but can slide up and down without friction. If the wires have a mass of 5.3 g per metre of length calculate

    asked by Jason
  107. Finance

    How much cash must be deposited in a savings account In Order To Accumulate 50,000 At End Of 7 Years With 12 % Interest Rate?

    asked by Lance
  108. Chemistry

    Wilh this form a buffer? 50 mL of .10 M HCl; 35 mL of .150 M NaOH WORK: Moles of HCl= .005 Moles of NaOH= .00525 total litres of solution= .05 + .035= .085 L [HCl]= .005 mol/.085 L = .0588 M [NaOH]= .00525 mol/ .085 L = .0618 M Ka of HCl= 1.3*10^6 pKa=

    asked by Vanessa
  109. physics

    A plane sound wave propagated in air has individual particles which execute a periodic motion such that their displacement y from their rest position at any time t is y=5x10^(-6)sin(800pie(t)+theta). Calculate (i) wavelength. (ii) phase diff in degree

    asked by Edwin
  110. measurements

    What is the nearest foot of a refrigerator and what is the nearest inch

    asked by billie
  111. Trig

    Simplify:::: sin (teta) cot (teta) = cos (teta)

    asked by John
  112. Chem

    At a particular temperature, Kc = 54 for the reaction H2(g) + I2 (g) 2 HI(g). One mole of HI is placed in a 3.0-L container. What would be the equilibrium concentration of HI?

    asked by CC
  113. trig

    convert polar to rectangular 2,2pi/3 ?????

    asked by Jill
  114. math

    Jen,amy,linda,max and jenny are compteting to fill two remaining spots on the chess team. How mant different combinations are possible for filling the two spots? 120,60,20,or 10

    asked by Joe
  115. Trade-Economics

    1.United States and Mexico have two industries; call them, L-intensive (LIN) and K-intensive (KIN). They have two factors of production: labor and capital. US is a capital abundant country and Mexico is a labor abundant country. At the initial equilibrium,

    asked by Kp
  116. research writing

    what strategies does the author use to formulate his argument in the article a nation apart

    asked by elaine
  117. math

    At a laundromat there is 1 more dryer than there are washers. Write a rule to find the number of d dryers for every w washers.

    asked by Marsha
  118. 10th grade

    Read the following paragraphs and in the space provided below, identify each highlighted word as a direct object, an indirect object, a predicate nominative, or a predicate adjective. Example: I enjoy [1] cooking but it can be hard [2] work. 1. direct

    asked by Amber
  119. Physics

    A voltmeter of internal resistance of 5000 Ω is connected across the poles of a battery of internal resistance 0.20 Ω. The voltmeter reads 1.4993 volts. What is the actual zero-current emf of the battery? Would this formula be I = V/(r+R) =

    asked by Selma
  120. COM/150

    TOPIC OUTLINE AND WORKING REFERENCES LIST CHECKPOINT

    asked by tony
  121. HSM 270

    I just need someone to explain this suggestion to me about a evaluation plan. I am so confused and my instructor not answering her phone. I really need help. The assignment was to describe the types of evaluations you would include in your evaluation plan

    asked by Tiara
  122. com 220

    I have to make the graphs myself they cannot come from the internet. It has be all our own original work. So I am really stuck on this one. I have never made a graph.

    asked by Tracie
  123. HSM 270

    I just need someone to explain this suggestion to me about a evaluation plan. I am so confused and my instructor not answering her phone. I really need help. The assignment was to describe the types of evaluations you would include in your evaluation plan

    asked by Tiara
  124. Biology

    32. To function properly, a neuron must maintain a a. membrane potential b. neurotransmitter c. negative charge on the inside d. positive charge on the inside I'm stuck between C and D... 34. Hormones are essential to maintaining homeostasis mainly because

    asked by mysterychicken
  125. CHEMISTRY

    What is the hydroxide ion concentration in mol/L of a solution if 0.080 grams of NaOH are dissolved in 2.0 liters of solution?

    asked by Confused person
  126. Statistics

    I think the answer to this question is False but I would like to confirm. Thank you for your help. True or False: Suppose the population mean is 50 and the population variance is 100 for a population. In a sample where n = 100 is randomly taken, 90% of all

    asked by Billy
  127. health

    if hippa rules are stricter than state law, which standard should you follow and why? what if the state law was stricter?

    asked by estela
  128. taxation

    noncash items received as income must be included in income at their fair market value true or false?

    asked by jeannette
  129. Oceanography

    Toledo, OH is on the western end of Lake Erie. Would a north, west, or east wind produce the biggest wave in toledo? Why?

    asked by Krysten
  130. math

    How is the expected outcome determined in a discrete distribution? I do not understand this question. Could someone please help me.

    asked by grey
  131. marketing

    USING THE SEVEN PHASES OF NEW PRODUCT DEVELOPMENT AS A GUIDE, DESCRIBE HOW YUR COMPANY WILL DEVELOP THE NEW PRODUCT

    asked by CARLA
  132. trig

    Suppose sin theda= – 3/5 and theda is a Quadrant III angle. Find the exact value of sin 2 theda and cos 2 theda.

    asked by Anonymous
  133. algerbra

    System of equation can be solved by graphing or by using substitution or elimation. What are the pros and cons for each methods?

    asked by Ronny
  134. algebra

    James invested some money at 12% interest. James also invested $188 more than 4 times that amount at 13%. How much is invested at each rate if Sang receives $2249.57 in interest after one year?

    asked by Hannah
  135. Calculus - another question

    "Find the absolute minimum value of the function f(x) = x ln(x)". I know that one of the critical values is 1 (domain restriction). Am I right? So I did the derivative, and got 1+ ln(x), but I cannot figure out the critical values, because ln(x) can't

    asked by Stuck
  136. trig

    how do i evaluate using formulas? i did almost the entire thing, but i can't finish the problem because i don't know how to simplify it: tan(-5/12pi) i can get until this part: = (-6pi/24)+(4pi/24) / 1-(-2pi/24)

    asked by mel
  137. English

    1. You know what 2. Guess what 3. By the way (Are the three expressions the same in meaning and in usage in a sentence?)

    asked by rfvv
  138. literature

    why was mora's mother's ability to deliver a speech in the state capitol so amazing?

    asked by kayla
  139. Physics

    A solar panel (an assemblage of solar cells) measures 58 cm x 53 cm. When facing the Sun, this panel generates 2.7 A at 14 V. Sunlight delivers an energy of 1.0×10^3 W/m^2 to an area facing it. What is the efficiency of this panel, that is, what fraction

    asked by Jenny
  140. Freshmon Comp

    Can someone please help me come up with a simple topic for a division Analysis Essay. It only has to be four hundred word so it cant be to general please help me its due tomorrow and i still havent got a clue, for a topic

    asked by Sara
  141. AED 201

    How do such rewards influence recruitment or retention? This is what I have for internal and external rewards that affect recruitment and retention of qualitiy teachers. Internal rewards-the satisfaction a person gets from teaching and helping children

    asked by Rayna
  142. Precalculus

    Can anyone help me with this question please!! Show that (cosh x)^2 - (sinh x)^2 = 1 for every real number x.

    asked by jh
  143. math

    what is the remainder when ka^3-3a^2+5a-8 is divided by a+1. please help and thank you

    asked by tom
  144. chemistry

    what volume should a 1.0L balloon at 25 degrees celcius and 1.00 atmosphere pressure be if immersed in liquid nitrogen (-196 degrees celsius, 1atm)?

    asked by finn
  145. English

    Can you please check if the following questions are correct? 1) Which Lennon’s song became a special song for peace? 2) In which other Lennon’s song is there a strong anti-war message? 3) Who was Vietnam a colony of? Or Which country was ..? Vietnam

    asked by Franco
  146. Calculus

    given y=sec(x^2)ln(2x^5) find dy/dx

    asked by Joe
  147. reading

    thank you for you time i just want to see if i did my work correct.i will put the questions and answers and on the bottom of that i will put my answer. now as the train bears west, its rhythm rocks the earth, and from my Pullman berth i stare into the

    asked by tommy
  148. Business law

    Fess, a farmer, contracted to sell his cabbage crop to Chris C. for $475, the contract being made one week before the harvest. The contract was oral. After the harvest Fess quickly sold the crop to Don Trump instead for $700 when Trump called and offered

    asked by Sandy
  149. measurements

    What is the nearest foot for a bathtub and the nearest inch

    asked by billie
  150. Trigonometry

    Establish the following identity. 1/1-cosx + 1/1+cosx = 2csc(squared)x

    asked by Michael
  151. business

    I need to Create a table that lays out a day-by-day plan to use as a job aid for your employment search, spanning 3 weeks. I am completely lost with this assignment. Please help!!

    asked by anita
  152. Business

    Identify effective program design strategies in accordance with identified organizational and community needs and strengths.

    asked by Linda
  153. political 100

    why can't the president sit down with a group of able and intelligent advisers and produce an ffective program to address the problems facing the nation?

    asked by kelvin
  154. Environmental Science

    For my research paper on Coral Reefs, can someone please help me write an intro paragraph? I think I should first start by writing a thesis statement, although I'm not sure if thesis statements are required in research papers. If so, please help me. This

    asked by y912f
  155. math

    if you have 6 dozen eggs and use 3/4 of the eggs hoe many eggs remain

    asked by Anonymous
  156. world history

    I have to find a link between West Virginia and Texas. Having no luck. I either come up with common law marriage, or basketball scores. Please help.

    asked by Mike
  157. Math 116

    Okay so now I am working on the substitiution portion of this assignment and I understand the first part by not the second can someone help? Suppose you are in the market for a new home and are interested in a new housing community under construction in a

    asked by KiKi
  158. Pre-Cal (Please help)

    Identify any asymptotes of the graph. y = 1.08^5x I know that there is a horizontal asymptote but I do not know how to find it.

    asked by Mark
  159. math

    Create two problems for your fellow students to solve. Make one of the questions a permutation and the other one a combination. The permutation I gave this example. In how many ways can we arrange 8 movies on a book self? The combination example I put. How

    asked by Linda
  160. English

    Can you please check the following sentences I need to prepare for tomorrow please? Thank you very much for your help. 1) The healthcare reform, which is expected to become law soon, marks the biggest change to the US system for decades. 2)It provides

    asked by Franco
  161. Math 5th Grade

    Which of the fowllowing capacity relationships is true? A) 1 millimeter = 1,000 liters B) 16 fluid ounces = 1 cup C)10 pints > 8 quarts D)5 quarts < 1 gallon

    asked by MATH PLEASE HELP
  162. Pre-Cal

    Identify the following features of the graph of g(x) = (3/2)^x+2 A) Asymptotes B) Intercepts C) Increasing or decreasing Once I graph this on my calculator, how can I find these?

    asked by Mark
  163. English

    Why would a man with no talent, no looks, no money etc.. drive around the summer streets of NYC, showing down to talk with women - women he doesn't know, but who do posses talent, looks, money and etc.. (150 words min).

    asked by Eraser
  164. Chemistry

    Why is heating required for this formation: 6NaOH (aq) + Al2(SO4)3 (aq) ¨ 2Al(OH)3 (s) + 3Na2SO4 (aq)? Wouldn't freezing favour the formation of Al(OH)3 since freezing lower the KSP and more Al(OH)3 would precipitate?

    asked by Alan
  165. Math 30

    Determine the constant term in the expansion of (x+2)^9. would it be 2^9?

    asked by Sandy
  166. math

    container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am

    asked by Katherine
  167. Math

    What is the product of the sum of 1.3 and 0.9 and the difference of 1.2 and 0.8

    asked by Lily
  168. Pre-Cal

    Find the values of Q in degrees and radians without the aid of a calculator. a) cotQ = sqrt 3 / 3 b) secQ = sqrt2

    asked by Abbey
  169. Physics

    In a football game, a tackle running at a constant speed of 5 m/s tackles a stationary receiver. The two fly off horizontally at 4 m/s, before they hit the ground and begin to slow down. If the mass of the tackle is 105 kg, a.) What is the mass of the

    asked by Patrick Siy
  170. English

    1. He has more than 100 dollars. 2. He has less than 100 dollars. 3. He has 100 and more dollars. 4. He has 100 and less dollars. (Are they all grammatical?) Does #1 include 100 dollars? Does #2 include 100 dollars? Are #3 and #4 correct? Is #2 the

    asked by rfvv
  171. 6th grade Math

    2 1/2 divided X = 5 2 1/2 times X = 5

    asked by Dee
  172. Calculus

    find f'(x) f(x)=cos(2x)tan(2x)/2√x

    asked by Joe
  173. Geology

    The importance of science of geology to us as a civilization

    asked by Carol Alioto
  174. Math 30

    The first 3 terms in one row in the Pascals triangle are 1, 10, and 45. Determine the next two terms in this row. Did I do this right.10C4=210 and 10C5=252

    asked by Sandy
  175. English

    Can anyone tell me a quote about Myrtle in the Great Gatsby which proves: She is shown to be an attention seeker who tries to make an appearance of being in the upper class by criticizing the lower classes.

    asked by Nora
  176. chemistry

    Problem: how many grams of oxygen combined with 15 grams of nitrogen are in the compund N2O? Please explain how to solve.

    asked by Anonymous
  177. com 220

    I need a link to find charts and graph statistics on racism and prejudices today

    asked by Tracie
  178. Business

    In simple terms describe and explain the differences between qualitative and quantitative evaluation methods

    asked by Linda
  179. com 220

    I am writing an esay on Racism and how it has changed over the years for the blacks. I have to make visuals for my essay. Where would shoudl I go to get information to put on my visuals such as graphs and illustrations?

    asked by Tracie
  180. Biology

    ATP provides cells with energy needed for?

    asked by Jefery
  181. Calculus

    At what point on the given curve is the tangent line parallel to the line 3x-y=6? y=2+2e^(x)-3x

    asked by Anonymous
  182. science

    help!!!! leggoosss my hw says - after learning about rocks at joshua tree national park, i am now a great (blank)

    asked by alli
  183. BUSINESS FINANCE

    Dan Morgan inherits $900,000. He plans to take out an equal sum over the next 25 years, while his funds earn 9%. How much can she take out at the end of each year? I took the 900000/9.823 from the PVA IFA chart and it doesnt seem correct. It came out to

    asked by Ashley
  184. math

    80+95/42+93

    asked by kayla
  185. Classics

    What are some characteristics for Hurcules/Heracles??? Eg Brave

    asked by Charlotte
  186. critical thinking 105

    A(n)___________ is a set of claims intended to support or prove a conclusion

    asked by Teresa
  187. world history 1

    what cardinal was placed in charge of assisting king after Henry iv's death?

    asked by cherokee
  188. inorganic chemistry

    In the final step of making the nitro complex it involves the addtion of concentrated HCl. What are the role(s) of the HCl in this step of the synthesis? nitro complex: [Co(NH3)5(NO2)]Cl2

    asked by jane
  189. Calculus

    find f'(x) f(x)= sin(3x)/2x^2-4

    asked by Joe
  190. Calculus

    find f'(x) f(x)=x^5lnx

    asked by Joe
  191. sociology

    what is your experience with bureaucracy or a corporation. Say if it was a good or bad experience for you and why??

    asked by Hannah
  192. Writting papers

    Please critique and correct this document in APA STYLE AND FORMAT. Nursing Theory as the Basis of Care Who am I? One of the greatest ironies of my life is that my generation has eyes yet can not see they have ears and yet can not hear. My generation has

    asked by Susan
  193. English

    I reallly hope someone of you can check these sentences I need to prepare for tomorrow. 1) The healthcare reform, which is expected to become law soon, marks the biggest change to the US system for decades. 2)It provides cover for (or it offers coverage

    asked by Franco
  194. math

    Tom received 90 votes in the student council election. That was 30% of the total votes cast. How many votes were in the election? 200 270 300 360

    asked by Joe
  195. principle of marketing

    Since economy boom is an external factor how does it affect a company pricing decision?

    asked by nicola
  196. calc 3

    what is the y-particular of: y"-2y'+2y=(e^t)(sin(t))

    asked by Michael
  197. reading

    different creatures are equipped to live in different places.and moose long ago adapted to bogs and lakes, deer to forests and brushlands and bighorns to mountain peaks.the pronghorn,America's smallest "big game" mammal,is beautifully fitted to life on the

    asked by tommy
  198. Chemistry

    You are required to plan and design an investigation to test the following hypothesis Black inks from three different brands of permanent makers contains different dyes. I want to know how to go about doing this lab What Aim must be use? What is the

    asked by Confused Grace
  199. algebra

    I'm looking to see if I did this right or not. ((y-5)/((x^2+5x)(x^2+5y)))+((1)/(x+y))-((2)/(x+5)) = ((y-5)/(x+y)(x+5))+((1(x+5)/(x+y)(x+5))-((2(x+y)/(x+y)(x+5)) = ((y-5)+1(x+5)-2(x+y)/(x+y)(x+5)) = y-6 ????

    asked by James S.
  200. 11th grade

    how much current flows in a 12-watt radio connected to a 120-volt circuit.

    asked by Daquindre
  201. Pre-Cal

    Identify any asymptotes of the graph. y = 1.08^5x I know that there is a horizontal asymptote but I do not know how to find it.

    asked by Mark
  202. English

    1. I am Bora, your student from last year. 2. I am Bora, your student last year. (Which one is correct?) 3. School begins at 8:30 am. (What does school mean here? Does 'school' mean 'class'?)

    asked by rfvv
  203. marketing

    Consider a recent purchase that you or a family member has made (examples: a household product, a DVD or CD, a grocery item, an electronic device, etc.) Describe the item and list three main reasons you purchased that product as opposed to another product.

    asked by smartonesmartone
  204. math

    How to factor (x/x-2)-(x+2/x) my answer is -x^2-x-2/x and (3+sq rt 5)*(3-sq rt 5) my answers are either 4 or 3*sq rt 5^2 are any of these right? Thanks so much for all of your help.

    asked by Paula
  205. Ethics

    Can groups or organizations function autonomously apart from the individuals that comprise them

    asked by Kell
  206. 5th Grade MATH!!!!!!

    Can a line segment have two midpoints? Explain.

    asked by Cameron
  207. CRT 105

    A(n)_________ claim is a claim about a matter of fact.

    asked by Teresa
  208. CRT 105

    A(n)________ or factual issue is one whose truth can be settled by an agreed-on method for collecting evidence,the truth about which is a fact, and disagreement about which means that at least one of the people is mistaken.

    asked by Teresa
  209. Oceanography

    One globally important consequence of the horizontal ocean circulation and one globally important consequence of vertical circulation in the oceans?

    asked by Krysten
  210. 9th grade

    1j + 2c =11 1L + 1c = 5 1j + 2L = 3 1j + 1c + 1L = t What is t?

    asked by Michelle
  211. literature

    why do you think mora's mother's speech was amazing

    asked by kayla
  212. math

    help with solving the system of equations 3x+4y+z=7 2y+z=3 -5x+3y+8z=-31

    asked by Paula
  213. social studies

    chose two health disability rights. HOW YOU WOULD APPLY THE PRINCIPLES OF THESE TWO RIGHTS INTO YOUR WORK WITH YOUR CONSUMERS?

    asked by samira
  214. ENGLISH

    WHY DO YOU THINK CONFIDENTIALITY IS AN IMPORTANT COMPONENT OFTHE CODE OF RIGHTS?

    asked by samira
  215. MATH

    HOW DO YOU CALULATE THE DIMENSIONS OF A RECTANULAR PRISM IF THE DIMENSIONS ARE 21FT BY 15 FT BY 8 FEET

    asked by INDIA DENNIS
  216. spanish

    describe que llevas cuando estas en casa. como es diferente de la ropa que llevas a clases? can someone translate that for me?

    asked by j
  217. science

    would radiation levels in natural versus man-made objects be a good science fair project? I can borrow a geiger counter

    asked by teri
  218. math

    -4w+5 ______=-7 -3

    asked by makayla
  219. Algebra :\

    Elimination using addition and subtraction: 1. x - y = 1 x + y = 3 2. -x + y = 1 x + y = 11 3. x + 4y = 11 x - 6y = 11 4. -x + 3y = 6 x + 3y = 18 PLEASE HELP!!!! I NEED HELP ASAP!!!!

    asked by Presley
  220. Math

    I'm looking to see if I did this right or not. ((y-5)/((x^2+5x)(x^2+5y)))+((1)/(x+y))-((2)/(x+5)) = ((y-5)/(x+y)(x+5))+((1(x+5)/(x+y)(x+5))-((2(x+y)/(x+y)(x+5)) = ((y-5)+1(x+5)-2(x+y)/(x+y)(x+5)) = y-6?

    asked by James S.
  221. 5th grade

    how can 2and2 3thirds be equal to 16 sixths

    asked by chris
  222. Biology

    32. To function properly, a neuron must maintain a a. membrane potential b. neurotransmitter c. negative charge on the inside d. positive charge on the inside I'm stuck between C and D... 34. Hormones are essential to maintaining homeostasis mainly because

    asked by mysterychicken
  223. 12th grade

    how can i find the initial velocity of a ball being kicked from a rooftop and landing on the ground?

    asked by Anonymous
  224. Math

    I'm looking to see if I did this right or not. ((y-5)/((x^2+5x)(x^2+5y)))+((1)/(x+y))-((2)/(x+5)) = ((y-5)/(x+y)(x+5))+((1(x+5)/(x+y)(x+5))-((2(x+y)/(x+y)(x+5)) = ((y-5)+1(x+5)-2(x+y)/(x+y)(x+5)) = y-6

    asked by James S.
  225. Pre-Cal

    What is the domain of f/g? f(x) = x / x+1 g(x) = x^3 Please explain! Thank you

    asked by Hannah
  226. English

    Posted by rfvv on Monday, March 22, 2010 at 3:48am. the video media yp club the print media yp club the information telecommunication yp the RCY club the English conversation club the environment guard club the quilt club the reading essay club / the

    asked by rfvv
  227. Math

    I'm looking to see if I did this right or not. ((y-5)/((x^2+5x)(x^2+5y)))+((1)/(x+y))-((2)/(x+5)) = ((y-5)/(x+y)(x+5))+((1(x+5)/(x+y)(x+5))-((2(x+y)/(x+y)(x+5)) = ((y-5)+1(x+5)-2(x+y)/(x+y)(x+5)) = y-6

    asked by James S.
  228. MACROECONOMICS

    AN INCREASE IN THE PRICE OF PRUDUCT WILL REDUCE THE AMOUNT OF IT PURCHASHASED BECAUSE

    asked by MEMEDOU
  229. science

    what is radiation?

    asked by teri
  230. Calculus

    find f'(x) f(x)=(3x^2-4)^5 / √2x-1

    asked by Joe
  231. Freshman comp

    Im going to do it on Resumes hows that ?

    asked by Sara
  232. great basain

    Seeteness salt and sugar are the most common food addidtives. True are falls

    asked by lifra vivandize
  233. math

    what does 1/4+3/10+14/15 equals?

    asked by sam
  234. silk

    when was it discovered

    asked by maha
  235. math

    2x^3(x^2+2x)^-1/2 -(x^2+2x)^1/2 / x^2 the whole numerator is over x^2

    asked by Daniel
  236. math

    where can i find a website about math thank you

    asked by st
  237. english

    what does the word ressurection mean?

    asked by Anonymous