Questions Asked on
October 25, 2010

  1. chem

    A 120.0 mL buffer solution is 0.105 M in NH3 and 0.135 M in NH4Br, What mass of HCl could this buffer neutralize before the pH fell below 9.00?

    asked by moe
  2. chem--please help me check my answer!!

    write an ionic and net ionic equation for the following reaction between Fe3+ and NH4OH. Please check my answer!! Thank you. My answer is: ionic: Fe3+(aq) + NH4OH--> Fe(OH)3 + NH4+ net ionic: Fe3+ +OH- -->Fe(OH)3

    asked by Christine
  3. Physics

    Rachel Pulls her 18 KG suitcase at at a constant speed by pulling on a handle that makes and angle (theta) with the Horizontal the frictional force of the suitcase is 27 N and Rachel exerts a 43 N force on the handle What angle does the handle make with

    asked by Anonymous
  4. Math PIZZAZZ

    PIZZAZZ Q: what should you say when you meet an angel plz give me answer!

    asked by Sarah
  5. Chemistry

    In a sample of solid Al(NO3)3, the ratio of aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6

    asked by Jazmin
  6. Chemistry check my answer?

    Hi! is my answer correct? Consider the following chemical reaction: H2 (g) + I2 (g) 2HI (g) At equilibrium in a particular experiment, the concentrations of H2, I2, and HI were 0.15 M, 0.033 M, and 0.55 M, respectively. The value ofKeq for this reaction is

    asked by Richard
  7. Physics

    Three blocks, connecting ropes, and a light frictionless pulley comprise a system, as shown. An external force P is applied downward on block A (12Kg). The system accelerates at the rate of 2.5m/s^2. The tension in the rope connecting block B (18Kg) and

    asked by Thomas
  8. Chem Class

    The rate constant of a first-order process that has a half-life of 225 s is ?????? s-1. ok so i divided half life of 1st order= 0.693/K k i put 225 and i got 3.08 x 10^-3 is that right?

    asked by Laynie
  9. physics

    A block of mass 3.90 kg is pushed 3.80 m along a frictionless horizontal table by a constant 16.0 N force directed 24.0° below the horizontal. What is th total work done on the block?

    asked by gabe
  10. Science (Chemisty)

    Scientists in 1962 became very excited when they were able to create xenon tetrafluoride. Why was this an unusual feat? Why was fluorine a good choice to try to react with xenon?

    asked by Caitlyn
  11. Math - Simple rational Function (check)

    A pollutant has been leaking steadily into a river. An environmental group undertakes a clean-up of the river. The amount of pollutant in the river after t years the clean-up begins is given by the equation N(t)=0.5t+(1/(10t+1)) a) What quantity of

    asked by Anonymous
  12. Chemistry

    A student named KClO3 potassium chlorine (V) oxide. Explain why the use of the stock system is not correct in this case and write the correct name of the substance.

    asked by Penny
  13. chem

    I am trying to figure out how to calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH of 10.26, I'm not sure where to start.

    asked by moe
  14. 5th grade

    make up a data set of at least 12 numbers that have the following landmarks. maximum 18 mode7 range 13 and median 12.

    asked by Anonymous
  15. Chemistry

    The Ka values of H2CO3 are shown below. Ka1 4.6 10-7 Ka2 4.4 10-11 What is the pH of a 0.17 M solution of Na2CO3?

    asked by Kelly
  16. Physics

    TWo blocks of massses 20 kg and 8 kg are connected together by a light string and rest on a frictionless level surface. Attached to the 8 kg mas is a second light string, which a person uses to pull both blocks horizontally. If the two-block system

    asked by Gail
  17. calculus

    A particle moves along the curve y=square sqrt 1+x^3. As it reaches the point (2,3), the y-coordinate is increasing ata a rate of 4cm/s. How fast is the x-coordinate of the point changing at that instant?

    asked by tim
  18. chemistry

    The question below, i was wondering if it decrease because the N2 is on the right and so to add to left it would be too much so it gets rid of it by decreases and doing to the right? because the left side is (+) endothermic? sorry im a little confused. if

    asked by Ben
  19. chem

    I am trying to figure out how to calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH of 10.26, I'm not sure where to start.

    asked by moe
  20. Chemistry

    Calculate the molar solubility of BaSO4 in a solution in which [H3O+] is 2.5 M. I can almost solve this on my own. If you know the following equations: BaSO4 = Ba2+ + SO42- SO42- + H+ = HSO4- HSO4- + H+ = H2SO4 and I know [H+] = 2.5 M along with the

    asked by Jay
  21. Chemistry

    I need help with What is the solubility of silver oxide, Ag2O, in a solution buffered at pH 10.50? The Kc for the following equilibrium is 2.0 x 10-8. Express your answer in g/L Ag2O(s) + H2O(l) ¡ê 2Ag+ (aq) + 2OH- (aq)

    asked by Tom
  22. Economics

    There are three industrial firms in Happy Vally. Initial Cost of Reducing Firm Pollution Level Pollution by 1 unit A 70 units $20 B 80 units $25 C 50 units $10 The government wants to reduce pollution to 120 units, so it gives each firm 40 tradable

    asked by Anonymous
  23. physics

    A pelican flying along a horizontal path drops a fish from a height of 5.4m. The fish travels 8.0 m horizontally before it hits the water below. What was the pelican's speed?

    asked by John
  24. Chem

    A water sample is suspected to be contaminated by iron (III) ions. How could you determine if the sample is really contaminated?

    asked by Christ
  25. chemistry

    Data: 2Ba(s) + O2(g) ¡æ 2BaO(s) ∆H¡Æ = -1107.0 KJ Ba(s) + CO2(g) + ¨ö O2(g) ¡æ BaCO3(s) ∆H¡Æ = -822.5 KJ Given the data above, calculate the ∆H¡Æ for the reaction below. BaCO3(s) ¡æ BaO(s) + CO2(g)

    asked by lavonne
  26. Biology

    state one effect of an increasing level of TSH-releasing factor

    asked by Shiane
  27. physics

    A 3.6 kg wood block is launched up a wooden ramp that is inclined at a 30¡ angle. The block's initial speed is 13 m/s. (Use µk = 0.20 for the coefficient of kinetic friction for wood on wood.) What vertical height does the block reach above its starting

    asked by help me
  28. Chemistry

    What incorrect information is given by the formula MgOH2 instead of the correct formula, Mg(OH)2 ?

    asked by lisa
  29. chemistry

    which element in period 4 has four electrons in its electron-dot structure ?

    asked by Raynique
  30. Science (Chemistry Periodic Table of Elements)

    A tube of "Brilliant Yellow" acrylic paint contains titanium dioxide. What transition metal is in this compound? What important nonmetal elements is in this compound?

    asked by Caitlyn
  31. Chemistry

    3) A student dissolves a 1.18g aspirin tablet in water and titrates the solution with a .265M NaOH. 22.05mL of NaOH are required to reach the equivalence point. Calculate the percentage of acetylsalicylic acid in the tablet.

    asked by Juliet
  32. PHYSICS ---HELP!

    A 3.6 m diameter merry-go-round is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg\m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merry-go-round. 1. What is the

    asked by Lacey
  33. Organic Chemistry

    Ooops sorry! Please rank the following compounds in DECREASING order of their reactivity toward the SN2 reaction with sodium ethoxide in ethanol. a. methyl chloride b. isopropylbromide c. t-butyliodide d. methyl iodide e. ethyl chloride I have an answer,

    asked by Please help
  34. Chemistry Class

    Dinitrogentetraoxide partially decomposes according to the following equilibrium: N2O4 (g) -> 2NO2 (g)

    asked by Jane
  35. Organic Chemistry Lab

    For this week's lab, we have to devise our own separation and purification scheme. The mixture contains three compounds, however my problem lies in the fact that the composition isn't given to us. There are four possible combination 1)benzoic acid,

    asked by Remi
  36. AP US History

    How did Thomas Jefferson hope to remove obstacles to upward social mobility?

    asked by john
  37. math problem

    Brianna is working on her homework. Her assignment is to come up with four representations for an exponential function of her choosing. She decides it is easiest to start by writting y=1200 (1/2) ^x. Help brianna create the other three components of the

    asked by john
  38. Analytical Chemistry

    When BaCl2-H2O (s) is dried in an oven, it loses gaseious water: BaCl2-H2O BaCl2(s) + H2O (g) enthalpy change - 63.11 kJ/mol at 25 degrees C entropy change - +148 J/(K-mol) at 25 degrees C Calculate the vapor pressure of gaseous H2O above BaCl2-H2O at

    asked by Tammy
  39. college chemistry

    HIO3 + FeI2 + HCl --> FeCl3 + ICl (in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction). Add H2Os, H+s or OH-s as needed. I just wanted to know if the answer I got is correct 2FeI2 +6HCl +Cl +HIO3-->6FeCl3 +ICl +3H20

    asked by jillian
  40. math

    Robert spent 3/5 of his money on stereo equipment and 1/6 of the money he had left on lunch. He left the house with $24. How much did robert return with?

    asked by Anonymous
  41. maths

    a boat travel 5 miles due south and then 11 miles due east. how far is it from the starting point?

    asked by tia
  42. chemistry

    Calculate the pH at which the amino group of lysine is 20% dissociated. lysine side chain pka is 10.5.

    asked by Nikki
  43. chemistry

    is there any way to know if its products or reactants..? The equilibrium constant for the gas phase reaction N2 (g) + 3H2 (g) (2 arrows: one to right, one to left.) 2NH3 (g) is Keq = 4.34 × 10^-3 at 300°C. At equilibrium, __________. A) reactants

    asked by Laynie
  44. College Chemistry

    1) A 25mL sample of the .265M HCI solution from the previous question is titrated with a solution of NaOH. 28.25mL of the NaOH solution is required to titrate the HCl. Calculate the molarity of the NaOH solution. 2) A 1.12g sample of an unknown monoprotic

    asked by Jessica
  45. Science

    How would you expect a metalloid like arsenic to conduct electricity, compared to a metal?

    asked by Season
  46. Physics

    When a falling meteor is at a distance above the Earth's surface of 3.34 times the Earth's radius, what is its free-fall acceleration due to the gravitational force exerted on it?

    asked by Starfallen
  47. figurative language

    plz help me i am in 5th grade and need help on similies & metaphores about the book number the stars. it asks "it was an odd word: pride." meaning proud, i think

    asked by kyle
  48. Chemistry

    It says prepare a theoretical titration of 25 mL of 0.1037 M formic acid (HCOOH; pKa= 3.75) solution (diluted to 100mL volume with deionized water) by 0.0964 M solution of KOH. It asks to determine the volume of KOH solution needed to reach equivalence

    asked by Anonymous
  49. chemistry

    how can AgCl(s) be dissolved completely? write an equation for the reaction

    asked by anon
  50. chemistry

    The electron from a hydrogen atom drops from an excited state into the ground state. When an electron drops into a lower-energy orbital, energy is released in the form of electromagnetic radiation. Part A: How much energy does the electron have initially

    asked by sam
  51. Physics

    a plane flying at 90 degrees and 100 ms is blown toward 180 degrees at 50 ms. What is the resultant velocity and direction?

    asked by Jennifer
  52. Chemistry

    Chemical analysis of a gas shows that it contains one carbon atom for every one hydrogen atom. The densiry ofthis gas is 1.161 g/l at STP. What is the minimus oxygen volume needed at STP for the complete combustion of .500 mol of this gas?

    asked by Taylor
  53. accounting

    On May 31, 2011, James Logan Company had a cash balance per books of $6,781.50. The bank statement from Farmers State Bank on that date showed a balance of $6,404.60. A comparison of the statement with the cash account revealed the following facts. The

    asked by vivian
  54. physics

    When Mary is 22 m from the finish line, she has a speed of 4.0 m/s and is 5.0 m behind Sally, who has a speed of 5.0 m/s. Sally thinks she has an easy win and so, during the remaining portion of the race, decelerates at a constant rate of 0.51 m/s^2 to the

    asked by bob
  55. Economics

    There are three industrial firms in Happy Vally. Initial Cost of Reducing Firm Pollution Level Pollution by 1 unit A 70 units $20 B 80 units $25 C 50 units $10 The government wants to reduce pollution to 120 units, so it gives each firm 40 tradable

    asked by Anonymous
  56. La Salle

    How many grams of sodium chloride do you need to prepare 250 mL of a 5.00% (w/v) sodium chloride solution?

    asked by Jackie
  57. Chemistry

    how many grams of potassium bromide could be recovered by evaporating 650 grams of 15 perentKBr solution to dryness...... 650 * (.15) = 97.5

    asked by Pierre
  58. Science

    Describe the procedure for preparing 250mL of buffer solution with a pH of 5.00 from acetic acid (CH3COOH) and sodium acetate. How many grams of acid do you have to mix with 3.6 grams of sodium acetate? (Given Ka for acetic acid = 1.8x10^-5)

    asked by Chemisty-Buffers
  59. math

    How many people were at a party if There were 105 handshakes at a party and if each person at the party shook hands with exactly once with every other person. The answer is 15. How do I write the problem?

    asked by Madi
  60. trig

    determine an exact expression for the trigonometric function sin(13pi/12).

    asked by jj reddick
  61. math

    Devon's bike has wheels that are 27 inches in diameter. After the front wheel picks up a tack, he rolls another 100 ft and stops. How far above the ground is the tack?

    asked by Lynn
  62. Science (Chemisty)

    Why do you never find liquid bromine in your neighborhood?

    asked by Jeremiah
  63. chemistry

    Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 225 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/(gK), as water

    asked by randy
  64. Biology (multiple choice!)

    I'm studying for a test and can't find the answers for the following questions...please help! What clade of bacteria produce oxygen via photosynthesis? What is a synapomorphy for domain Bacteria? In a symbiotic relationship between organisms of

    asked by Sarah
  65. Physics

    A man measures the acceleration of an elevator using a spring balance. He fastens the scale to the roof, and suspends a mass from it. If the scale reads 98N when the elevator is at rest, and 93N when the elevator is moving, (a) what is the acceleration of

    asked by Bianca
  66. Chemistry

    how many grams of potassium bromide could be recovered by evaporating 650 grams of 15 perentKBr solution to dryness...... 650 * (.15) = 97.5 is this correct

    asked by Pierre
  67. Statistics and Probability

    All printed circuit boards (PCB) that are manufactured at a certain plant are inspected. An analysis of the company’s record shows that 22% of all PCBs are flawed in some way. Of those that are flawed, 84% are reparable but the rest must be discarded. If

    asked by Joshua
  68. Science

    Magnesium burns quickly in flashbulbs when an electric current passes through it, providing a bright light for exposing film. Why do you suppose the inside of the bulb containing the magnesium is filled with a "noble" gas instead of air??

    asked by Caitlyn
  69. Chemistry

    60.0 g of benzene is mixed with 135g of bromine to form bromobenzene according to the following reactionC6H6+Br2-C6H5Br+HBr which is the limiting reagent and what is the theoretical yield

    asked by Stark State
  70. chemistry

    Use the thermochemical equations shown below to determine the enthalpy (kJ) for the reaction: H2SO3(l)=>H2S(g) + 3/2O2(g) H2SO3(l)=>H2O(l) +SO2(g) DH=62KJ SO2(g)=>S(s) + O2(g) DH=297KJ H2S(g) +1/2O2(g)=>S(s) + H2O(l) DH=-155KJ so you just add 62kj

    asked by anonymous
  71. algebra

    jill's present weight is 14 pounds less than her weight a year ago. if her weight at the time was 9/8 of her present weight, what is her present weight in pounds?

    asked by Frankie
  72. chemistry

    A hydrocarbon sample was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.00 kg of water rose from 20.45 celsius to 23.65 celsius.The heat capacity of the caloimeter, excluding the water, is 2.21 kJ/degree celsius. using this

    asked by lavonne
  73. Science (Chemisty)

    The melting point of sodium is 97.8`C. Would you expect the melting point of iodine to be higher or lower?

    asked by Caitlyn
  74. Physics

    A driver in a car traveling at a speed of 21.8m/s see a cat 101m away on the road. How long will it take for the car to accelerate uniformly to a stop in exactly 90m?

    asked by Ruth
  75. physics

    You are given a vector in the xy plane that has a magnitude of 84.0 units and a y component of -49.0 units. Assuming the x component is known to be positive, specify the vector V which, if you add it to the original one, would give a resultant vector that

    asked by bob
  76. Science (Chemisty)

    In an old "Star Trek" episode, Captain Kirk and Spock come across a life form called the Horta made mostly of silicon compounds. Based on silicon's place in the periodic table, do you think silicon compounds are a reasonable choice for an alien life form?

    asked by Jeremiah
  77. MS office Acess 2007

    Determining Table Fields Which should not be included as fields in a table? Choose all that apply. A - Small fields B - Region fields C - Yes/No fields D - Calculated data E - Numbered fields F - Separate name fields

    asked by sha
  78. English

    Idententify the sentence parts - Whose car did the parking attendant tow yesterday?

    asked by Tiffany
  79. Adv. Chem

    I need some help with a Chemistry crossword. The subject is transition metals and we weren't told what chapter this was in the book. Down: 30. Cinder-like particles of pellets of concentrated ore Across: 5. Term referring to substances that are attracted

    asked by Kenshiro
  80. English

    Can you check my paraphrase of the poem "Daffodils" by W. Wordsworth, please? Thank you very much. 1)This poem recounts (deals with, talks about?) the experience of a walk Wordsworth went for with his sister Dorothy near their home in the Lake District.

    asked by Franco
  81. Chemistry

    Please rank the following compounds in DECREASING order of their reactivity toward the SN2 reaction with sodium ethoxide in ethanol. a. methyl chloride (CH3Cl) b. isopropylbromide ((CH3)2CHBr) c. t-butyliodide (CH3)3Cl) d. methyl iodide (CH3I) e. ethyl

    asked by Please help
  82. social studies

    what are some of the answers to this ancient egypt worksheet?

    asked by olivia
  83. science

    A 75 kg astronaut in space pushes against a 200 kg anvil. When the astronaut lets go of the anvil while pushing it: a. both astronaut and anvil accelerate in opposite directions at the same rate b. neither the astronaut nor the anvil will accelerate since

    asked by sang
  84. Physics

    On an open-reel tape deck, the tape is being pulled past the playback head at a constant linear speed of 0.372 m/s. (a) If the radius of the film taken up so far (as shown in the upper part of the drawing) is 0.0576 m, find the angular speed of the take-up

    asked by Jordan
  85. Hard Physics Problem

    The flywheel of an old steam engine is a solid homogeneous metal disk of mass M = 131 kgand radius R = 80 cm.The engine rotates the wheel at 580 rpm. In an emergency, to bring the engine to a stop, the flywheel is disengaged from the engine and a brake pad

    asked by Donny
  86. physical

    Find the magnitude of the resultant of the following two vectors: i) 50 units due east and ii) 100 units 30° north of west. the answer is 62 unit but how it come ?

    asked by meera
  87. Angular Velocity Question

    A disk with a mass of 18 kg, a diameter of 50 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force,

    asked by Oscar
  88. physics

    In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 3.9 m/s at an angle of 13.8° below the horizontal. It is released 0.65 m above the floor. What horizontal distance does the ball cover before

    asked by alex
  89. chemistry

    i am calculating an unknown acid for both monoprotic and diprotic assumptions. I calculated the monoprotic by multiplying the M NaOH by the liters of NaOH used to titrate. 0.0984M x 0.02396= 0.00236. I then take the unknown sample weight and divide it by

    asked by nicole
  90. physics

    When a horizontal force of 4.5 newtons acts on a block on a resistance-free surface, it produces an acceleration of 2.5 m/s squared. Suppose a second 4.0 kg block is dropped onto the first. What is the magnitude of the acceleration of the combination if

    asked by Caitlyn
  91. Algebra, help + check please

    Find the percent, round if nessacary: 1) 3 dollar tip for a 18.70 Taxi Fare. So 3 x 18 Correct? Or how would I even solve this problem? Thanks for helping -Allyson

    asked by Allyson
  92. social studies

    what did most of the early people do to survive? what did the early people do to be friendly with the settlers that came from the west

    asked by beverly
  93. physics

    two student walk in the same direction along a straight path, at a constant speed one at 0.90m/s and the other at 1.90m/s assuming that they start at the same point and the same time, how much sooner does the faster student arrive at a destination 780m

    asked by M
  94. Physics

    A tennis ball of mass 57. g bounces off a wall. Right before hitting the wall, the ball is moving to the right and up with vx=+40. m/s and vy=+10. m/s. Right after bouncing off the wall, the ball is moving to the left and up with vx=-35. m/s and vy=+10.

    asked by Gharib
  95. math

    Use the rational zero theorem, Descartes rule of signs, and the theorem on bounds as aids in finding all real and imaginary roots to the following equation: 4x^(3)-17x^(2)+16=0

    asked by Allie
  96. physics

    A cat chases a mouse across a 1.0 m high table. the mouse steps out og the way, and the cat slides off the table and strikes the floor 2.2 m from the edge of the table. When the cat slid off the table, what was it's speed?

    asked by Alex
  97. Algebra, Check help please?

    42 is 200 percent of what number? So I put 42 over 100 is equal to 200 over x? Is this right? Can someone explain? Thank you -Allyson

    asked by Allyson
  98. :( math

    Please answer!!! Robert spent 3/5 of his money on stero equipment and 1/6 of the money he had left on lunch. He left the house with $24. How much money did Robert return with?

    asked by Anonymous
  99. math

    On May 31, 2011, James Logan Company had a cash balance per books of $6,781.50. The bank statement from Farmers State Bank on that date showed a balance of $6,404.60. A comparison of the statement with the cash account revealed the following facts. The

    asked by vivian
  100. physics

    Two objects are connected by a light string passing over a light, frictionless pulley as in the diagram. m1 = 4.50 kg, m2 = 2.10 kg, and h = 4.30 m. The 4.50 kg object is released from rest at a point 4.30 m above the floor. Determine the speed of each

    asked by Anonymous
  101. Physics

    An arrow slows down from 43 m/s to 28 m/s as it passes through an apple. If the 493 g apple was originally at rest and sped up to 0.44 m/s, what is the mass of the arrow? Answer is 14.5 g

    asked by Chrono
  102. calculus

    given f(x) = sin2x/(xcosx) a) find lim f(x) x->0 B) find lim f(x) x-> pi/4

    asked by hy
  103. 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 Mark
  104. Physics

    In Fig. 4-11, a ball is launched with a velocity of 7.50 m/s, at an angle of 50° to the horizontal. The launch point is at the base of a ramp of horizontal length d1 = 4.00 m and height d2 = 3.60 m. A plateau is located at the top of the ramp. What is the

    asked by Robert
  105. Physics

    if a car is moving around a circular track at a constant speed of 55 mi/h, is there a net force acting on the car?

    asked by Janice
  106. physics.

    During a baseball game, a batter hits a pop-up to a fielder 94 m away. The acceleration of grvity is 9.8 m/s^2. If the ball remains in the air for 5.5 seconds, how high does it rise? Answer in units of m.

    asked by Autumn
  107. Algebra

    A triangle has the side lengths of 5 inches 12 inches and 15 inches every demention is multiplyed by 1/5 to form a new triangle how is the ratio of the perimeters related to the ratios corresponding sides?

    asked by Joelseph
  108. trig

    Rewrite the expression in terms of the first power of the cosine. Use a graphing utility to graph both expressions to verify that both forms are the same. 5 sin6(x)

    asked by Ashley
  109. Chemistry

    How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely?

    asked by Bill
  110. math

    I'm in 5th grade pls. help. Amanda has a collection of X, Y and Z. Every X is a Y. One half the Z's are Y's. There are 3 times as many Y's as X's. Amanda has 50 Z's and 40 X's. No Z is an X. How many Y's does Amanda have that are neither X's nor Z's?

    asked by Carol
  111. Chemistry

    I need some help with my Limiting Reactant Experiment report sheet. There is a question asking me to write a complete formula of the limiting reactant in the salt mixture of CaC2O4 X H2O. I don't know where to begin. Could you please help me.

    asked by CCC
  112. math

    at a local grocery store, the bananas they receive are transported through three stages: from the farmer to the market, from the market to the wholesaler, and from the wholesaler to the grocery store. at each stage, the price of the bananas increases by

    asked by me
  113. HCA 230

    what is America cultural viewpoint on health in regards to health as organic, health as harmonious, and disease as a curse or stigma?

    asked by mari
  114. chemistry

    Write net ionic equation for all the reactions that occurred with the metals. Cu(s) with Ag+ Pb(s) with Cu2+(aq) thank you

    asked by thomas richards
  115. how to gain your parents trust back

    I told three bad lies and now my parents don't trust me any more. What should i do?

    asked by panda
  116. Science

    Magnesium burns quickly in flashbulbs when an electric current passes through it, providing a bright light for exposing film. Why do you suppose the inside of the bulb containing the magnesium is filled with a "noble" gas instead of air?? Please help!

    asked by Season
  117. physics

    From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. h is 0.50 m and

    asked by Anonymous
  118. physics

    A 45000 pound truck is travelling at 5 mph. It hits a stationary object that is fixed in place. What is the force exerted on the object?

    asked by Robin
  119. physics

    The fastest recorded pitch in the MLB was thrown by Nolan Ryan in 1974. If this pitch were thrown horizontally, the ball would falll .809m (2.65 ft) by the time it reached home plate, 18.3 m away (60 ft). The acceleration of gravity is 9.81 m/s^2. How fast

    asked by autumn
  120. :(

    Please answer!!! Robert spent 3/5 of his money on stero equipment and 1/6 of the money he had left on lunch. He left the house with $24. How much money did Robert return with?

    asked by Anonymous
  121. business

    Listed below are five procedures followed by The Beat Company. Several individuals operate the cash register using the same register drawer. A monthly bank reconciliation is prepared by someone who has no other cash responsibilities. Ellen May writes

    asked by vivian
  122. social studies

    why do you think the Union army did not accept African American volunteers first?

    asked by .....
  123. Calculus

    A straight driveway perpendicular to a straight highway leads to a house located one mile away. A truck travels past the house traveling 60 miles per hour. How fast is the distance between the truck and the house increasing when the truck is three miles

    asked by Fred
  124. calculus

    A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat. If the rope is pulled in at a rate of 1.4 m/s, how fast is the boat approaching the dock when it is

    asked by Anonymous
  125. math

    This pattern represents the SQUARE NUMBERS: 1,4,9,16,25,36...draw a picture or diagram to explain SQUARE NUMBERS.

    asked by Jeff
  126. math

    Simplify the Expressions 1) -4(3x-3) + 9(x+1)= -3x21 2) -9x(5x+4)+10(x+3)= -45x-26 x+3 3) n(1+ 10n)-n(4n-3)= 4n+6n 4) -2n(-8n-10)-6(-10n-3)= 96n - 10 5) 8(-4x-7)+3(9-9x)= 59x - 29 6) 9(3-10n)-3(10n+1)= 30n - 3 7) -4(1-8x)-9(-10x-1)= -58 - 5

    asked by Alayasia
  127. Chemistry

    Concentration of OH- left in a solution made by mixing 16.0 g of NaOH and 80.0 mL of 0.170M HNO3?

    asked by Taylor
  128. Chem Class

    The equilibrium constant for reaction 1 is K.....? how do i figure out problems like this? do i check which ones cancel out? The equilibrium constant for reaction 1 is K. The equilibrium constant for reaction 2 is ___? (1) SO2 (g) + (1/2) O2 (g) (right and

    asked by Awr
  129. physics

    A racing car, starting from rest, travels around a circular turn of radius 28.9 m. At a certain instant, the car is still accelerating, and its angular speed is 0.421 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle

    asked by LostInLouisiana
  130. science

    A 75 kg person and a 200 kg crate are each parachuted to earth from a plane. Which statement is correct? a. the crate will reach terminal velocity last, but hit the ground first b. the person will reach terminal velocity last, but hit the ground first. c.

    asked by sang
  131. Financing

    Reflect on your experience with investing. What type of investments do you currently own/manage? What decisions are you responsible for making in regard to management of the investments? At this time, how comfortable are you with advising others on

    asked by troy
  132. Statistics/Probability

    in roulette, there are 18 red 18 black and 2 green slots ball rolled 25 times what is the prob that the ball does not fall into any green slots? how do you set this up? I did 1-.0536 and its wrong how to start? thanks so much!

    asked by Joshua
  133. algebra

    use substitution method to find x and y for 7x + 5y = -31 and -4x + y = 37

    asked by Leticia
  134. US History

    Between 1857 and 1903, the US acquired many new territorial possessions around the globe. Why do you think so many of these new possessions were islands located in the Pacific Ocean? I need help answering this. Thanks -MC

    asked by mysterychicken
  135. science

    How many grams of solid product can be produced by mixing 45.6 grams of chlorine gas with excess sodium metal?

    asked by Dee
  136. Pre Cal

    What is the inverse of g(x)= 1/2(x-1)^3-4

    asked by Katie
  137. psy

    Cathy owes six overdue movies to her local video store. Since each of Cathy’s overdue videos is a comedy, only comedies are currently overdue at Cathy’s local video store. Which one of the following premises, if added to the statements above, would

    asked by Liz
  138. English

    I need help doing the general reference for this sentence. Clarissa's four-year-old sister brought a frog inside and let it loose, which made Clarissa shriek.

    asked by Jennifer
  139. math

    find the coordinates of the centroid of a triangular metal part with vertices at A(12,18) B(18,6), and C(3,12)

    asked by Ted
  140. physics

    Part 1: A long jumper leaves theground at an angle of 21.7 degrees to the horizontal and at a speed of 10.6 m/s. The acceleration of gravity is 9.8 m/s^2. How far does he jump? Answer in units of m. Part 2: What is the maximum height he reaches? Answer in

    asked by autumn
  141. math

    Suppose 4 days before the day after tomorrow was Thursday. What day of the week was yesterday?

    asked by Kevin
  142. reading

    Some turtles live in the sea. Some turtles live in the land. Some turtles are pets and live in houses. The words below relate to different places where turtles live. Read the words. Then write the words in the groups where they belong. tank-beach-soil-heat

    asked by 3 grade
  143. Ap Chemistry.

    Zn + 2HCl -> ZnCl2 + H2 If 7.29 g of Zinc reacted, how many liters of HCl were used? I know that i can't use mass volume conversion, because the HCl is not a gas...so what do i do?

    asked by Chris
  144. physics.

    Part 1: A ball is thrown horizontally from the top of a building 28.6 m high. The ball strikes the ground at a point 80.3 m from the base of the building. The acceleration of gravity is 9.8 m/s^2. Find the time the ball is in motion. Answer in units of s.

    asked by Autumn
  145. physics.

    The fastest recorded pitch in the MLB was thrown by Nolan Ryan in 1974. If this pitch were thrown horizontally, the ball would falll .809m (2.65 ft) by the time it reached home plate, 18.3 m away (60 ft). The acceleration of gravity is 9.81 m/s^2. How fast

    asked by Autumn
  146. 8th grade

    when a truck pulls a trailer the trailer and truck accelerate forward even though the action and reaction forces are the same size but are in oppsoite direction. Why don't these forces balance each other?

    asked by Kevin
  147. chemistry

    The new standard for arsenate in drinking water, mandated by the Safe Drinking Water Act, requires that by January, 2006, public water supplies must contain no greater than 10 parts per billion arsenic. Assuming that this arsenic is present as arsenate

    asked by Kailea
  148. 3rd grade

    R wants to round 47 to the nearest ten. Which halfway number can help him? 45, because it is halfway b/w 40 & 50 or 50, because it is halfway b/w 0 & 100?

    asked by S
  149. english

    name a breakfast food that begins with the letter k also the letter a

    asked by zafir
  150. Physics

    A disk with a mass of 13 kg, a diameter of 25 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force,

    asked by Donny
  151. Math - Simple rational Function (check)

    Consider the function f(x) = x/(x-1) Are there any turning points? Explain how this could help you graph f(x) for large values of x? Ans: turning points is another word for checking the concavity, and therefore i find the second derivative and equate it to

    asked by Anonymous
  152. chemistry please help!!

    For the reation: C3H8+5 02 =3 CO2+4 H2O How many moles of C3H8 are needed to make 3.60 grams of H2O? I think the ans is 0.05 moles c3h8

    asked by Lillian
  153. To: Aisha >> b.aide

    Your post asking for answers to two Penn-Foster exams has been deleted. This is not a cheat site and we do not want such posts on the board or in our archives. http://www.pennfoster.edu/cheatpolicy.html

    asked by Ms. Sue
  154. englis 3

    my garden is full of water, because of yesterday"s rain.

    asked by mona
  155. Chemistry

    1. Chemistry is the study of the composition, structure and properties of substances.- F? 21. Which is found in the nucleus-- Protons or neutrons? 27. Copper metal is: a. poor conductors b. brittle c. malleable C? 44. What is the charge on most polyatomic

    asked by mysterychicken
  156. math

    find the coordinates of the centroid of a triangular metal part with vertices at A(12,18) B(18,6), and C(3,12

    asked by Ted
  157. physical science

    A 100 kg ball of lead rests next to a 10 kg rock. Which statement below is true? a. the lead ball and the rock have equal amounts of inertia b. if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because

    asked by Trang
  158. science

    Does the world have enough resources for 8 or 10 billion people to live decent, secure, happy, fulfilling lives?

    asked by Anonymous
  159. calculus

    given h(x) =kx+1, X and equal to 1 A) find value of k such that h(x) is continous at x=1 B) determine if h(x) is differentiable at x=1

    asked by hy
  160. Physics

    Horizontal velocity: 138ft/s Vertical velocity: 109ft/3 A ball is thrown at 95 mi/h. The distance from the mound to the plate is 60.5 ft. Assuming the ball is pitched parallel to the ground, how far does it fall due to gravity by the time it reaches the

    asked by Jill
  161. maths

    a ramp 10ft long is connected to the back of a truck that is 4ft off the ground. how far away from the truck does the ramp touch the ground?

    asked by tia
  162. biology 101

    Produce a family tree for at least three generations of your family or a friend’s family following these genetic traits: Eye color Hair color Dominant hand Height Widow’s peak Hitchicker’s thumb A family genetic disorder Can't seem to start could you

    asked by Anita fields
  163. Chemistry

    If 22 g of water is heated so that the water temperature rises from 18.1°C to 21.5°C, how many calories have been absorbed by the water? The specific heat of water = 1.00 cal / (g · °C)

    asked by Cassie
  164. Algebra

    a vehicle uses 1 tablespoon to drive 125 yards. How many miles can the vehicle travel per gallon? (Hint 256 tablespoons egual a gallon)

    asked by Randa
  165. math

    11 over 24 times x equals 68 over 24

    asked by destany
  166. English

    Can someone edit my paragraphs please? "You know, if we had a uniform policy, it would make things better in this school."(qtd. in Mitchell). The famous words of president Bill Clinton after realizing how school uniforms would positively affect our public

    asked by Sarah
  167. math

    11 over 24 times x equals 68 over 24

    asked by destany
  168. Programming

    This is a visual basics program issue. The problem is: Table 4.7 contains information on several states. Write a program that requests a state and category (flower, motto and nickname) as input and displays the requested information. If the state or

    asked by Stac
  169. Chemistry

    What is the percent aluminum in a sample weighing 1.85 grams. If 35 mL of wet hydrogen gas was produced @ 24 degrees Celsius under a total pressure of 752 torr?

    asked by Katy
  170. math

    (2x4 + 3x3 - 4) + (3x4 - 2x3 - 8)

    asked by annonomus
  171. English

    Ok i need to write a paragraph and then find the adverbs and adjectives. I have found some of them, but I am afraid I might of missed a few...Help Please!! I had many(adjective) credit cards when I was younger(adverb). Sadly(adverb), because of these

    asked by Jenn
  172. computer science

    Given an equilateral triangle with different charges namely charge on A is negative 4nC; B is positive 2nC and C is 1nC. The sides are all equal with 20cm. How can you calculate the resultant field on A; the mutual potential energy of the system?

    asked by Meagan
  173. Physical Science

    A pendulum has 343 J of kinetic energy at the lowest point in its swing. At the highest point in its swing, it has a height of 5 m. What is the pendulum's mass?

    asked by Allen
  174. math

    How do I take the derivative in respect to c1 for the following utility function? u1 = log(c1) + log [1/2(x-c1-c2)] details please

    asked by david
  175. business

    On May 31, 2011, James Logan Company had a cash balance per books of $6,781.50. The bank statement from Farmers State Bank on that date showed a balance of $6,404.60. A comparison of the statement with the cash account revealed the following facts. The

    asked by vivian
  176. Calculus

    Find dy / dx by implicit differentiation. 2sin(9x)cos(3y)=3 dy/dx=_____

    asked by Starfallen
  177. english

    does this make sense? Figure 1. Protein Analysis - Determination of the protein concentration of casein in an unknown sample after the addition of the biuret reagent from the results over test tubes 1 to 5.

    asked by trisha
  178. Chemistry

    3. A hypothesis is a testable statement.- T 4. Weight is a measure of the quantity of matter.- F 6. Potential energy is energy of motion.- F? 7. Liquids do not have a definite shape or volume.- F 8. The ability to burn is a chemical property.- T 10.

    asked by mysterychicken
  179. Physics

    The outer edge of a truck tire that has a radius of 20cm has a velocity of 21 m/s. what is the angular velocity of the tire in rad/s?

    asked by Jenni
  180. Algebra 2

    Solve: 2x+y+z=-2 2x-y+3z=6 3x-5y+4z=7

    asked by Kelsie
  181. ALgebra

    use substitution 3x-2y=11 x-y/2=4

    asked by mike
  182. Math

    A fraction greater than 1/8 and less than 1/4 is in simplest form and denominator is 4 more than its numerator...what is the fraction?

    asked by Sean
  183. math grade11

    for -2 < x < +3 and f(x) = 3x^2 - 6x a)determine the domain and range of f(x) b) the eqn of f inverse if f(x) is further restricted to 1 < x < 3. i don't know how to these problems i tried everything please help me

    asked by priya
  184. math(new)

    i need a diagram to show me this new math and how it works. i am not understanding the concept

    asked by norma
  185. Pure math

    1.Using your calculator,solve 4 ø in each of de 4lowing equations correct 2 1 decimal place,and with de restriction that 0 degree lessthanequals ø lessthanequals 90 degree

    asked by Dirang
  186. math inequalities please check

    A landscape designer has to design a rectangular pad of concrete at the centre of a rock garden. The lenght must be less than or equal to twice the width; the perimeter must be less than or equal to 40 m; and the area must be greater than or equal to 60

    asked by Sandi
  187. History please help

    Could someone explain what does it mean to "stabilize international exchange rates"? I would really appreciate it if someone wrote a brief explanation, because I just don't understand

    asked by Amy
  188. chemistry

    how many moles of sodium ions are present in 3.50 L of 0.400 M Na3PO4?

    asked by jeff
  189. math

    How do you find the rule of the sequence if the 2nd term is 40057.07 and the 5th term is 19192.53

    asked by juan
  190. chemistry

    how many moles of nitrate ions are in 10.00 grams of copper(II) nitrate?".

    asked by Anonymous
  191. Algebra.

    I'm in 8th grade, im in algebra, and this is my question: x=a+b+c ----- ab solve for a. please help!!

    asked by Maddison
  192. English

    I have to do some ads on clothing and how do these sound? Grab it and GO....Prom dress for only $25.99. Make Fashion your Passion and get this 30% off dress from our dress shop. Tradition Country Collection Sweaters Style for only $23.99 each. 40 % off.

    asked by Teressa
  193. algebra

    If i have the cost per quart of vinegar and the % of acetic acid for each of 4 brands, what would be an equation i could use to find out which brand has the most acetic acid for the money?

    asked by nicole
  194. english

    How can I fix this sentence? I have been busy of doing my homework every Thursday, and I only have two hours of sleep every Thursday.

    asked by Anonymous
  195. chemistry

    Metal Specific Heat (J/g-C) Al (s) 0.900 Au(s) 0.129 Cu(s) 0.385 Fe(s) 0.444 Hg(l) 0.139 H2O(l) 4.184 C2H5OH(l) 2.46 Using the above table, determine the final temperature if 713.6J is released from a 48.2g sample of copper initially at 93.8o C. -q = mass

    asked by alex
  196. Physics

    A spring has a spring constant "k" of 130 N/m. How much must this spring be compressed (in meters) to store 30 J of energy?

    asked by Adolfo
  197. science

    you have a liquid with a volume of 13mL and a mass of 19.5g.what is the density of the liquid?

    asked by lily
  198. Physics - Archery String

    An archery string has a spring constant of 1.9*10^2N/m. By how much does its elastic potential energy increase if is stretched 5.0cm

    asked by Anonymous
  199. social studies

    In an attempt to make a sound vocational choice, Jared studies the Occupational Outlook Handbook. He is practicing the strategy referred to as: seeking professional help. finding occupational facts. getting firsthand experience. matching your career to

    asked by dina
  200. math

    u - 1/12 = -3/4 u=?

    asked by Anonymous
  201. Math

    if a guy tavels 36 miles in 12 hours and his friend travels in a bike half the time how much would he travel in 9 hours

    asked by miya
  202. calculus

    Find all critical numbers: 2x*sqrt(3x^2+4)?

    asked by Zel
  203. Chemistry

    Consider the concentration of the final solution made in two volumetric flasks. In flask A the liquid was filled to a level above the mark. In flask B the liquid was filled to a level below the mark. Describe if the final concentration of the diluted

    asked by Jennifer
  204. Physics

    If 2.0 J of work is done in raising a 280g apple, how far is it lifted? I would say F= 2.0/180 but that doesn't really sound right...

    asked by Pablo
  205. Physics

    A heavy freight train has a mass of 14000 metric tons. If the locomotive can pull with a force of 645000 N, how long does it take to increase it's speed from 0 to 69.8 km/h?

    asked by Bala
  206. Algebra

    If t multiplied by the sum of x and 2y is divided by 4y, what is the result?

    asked by Gabby
  207. physics

    A skier starts from rest at the top of a hill that is inclined 18.5° with respect to the horizontal. The hillside is 200 m long, and the coefficient of friction between snow and skis is μk = 0.0500. At the bottom of the hill, the snow is level and the

    asked by Anonymous
  208. Nizwa

    What is dry ice? How do you convert it to its original form? Mention the name of the process involved. What happens to the energy of the matter during this process?

    asked by salim
  209. math

    Solve the two sided inequality and show the solution on real line 7 < 1-2x ≤ 10 Given two functions as: f(x) = and g(x) = Find fog(x) also find the domain of f, g and fog Simplify, then apply the rules of limit to evaluate

    asked by mary
  210. accounting

    What is Dell’s strategy for success in the marketplace? Does the company rely primarily on a customer intimacy, operational excellence, or product leadership customer value proposition? What evidence supports your conclusion?

    asked by felisha
  211. us history

    Who was the leader of the Church of Enland?

    asked by Montana
  212. calculus

    write the equation (in slope intercept form) of the line perpendiculaer to y=-X/2+1 and tangent to g(x)=3X^5+2X-1

    asked by hy
  213. Physics

    A car reaches a speed of 40m/s from rest in a time of 8 seconds. After the 8 seconds, the car travels at a constant velocity fro 200meters when it runs out of gas. The car slowly comes to rest 30 seconds after running out of gas. Calculate acceleration for

    asked by Vivek
  214. Statistics/Probability

    in roulette, there are 18 red 18 black and 2 green slots ball rolled 25 times what is the prob that the ball does not fall into any green slots? how do you set this up? I did 1-.0536 and its wrong how to start? thanks so much!

    asked by Joshua
  215. algebra

    Describe two laws of exponents and provide an example illustrating each law. Explain how to simplify your expression. How do the laws work with rational exponents? Provide the class with a third expression to simplify that includes rational (fractional)

    asked by Anonymous
  216. chemistry

    HOw many calories of heat were produced by the reaction of 10ml water with the powder of two compartments (2x3.23 g) of the heater?

    asked by diana
  217. health care

    If an enrollee uses more services thatn originally assumed per the PPPM calculation, then the plan would a. show a profit for that period b. show a loss for that period c. need a contract renegotiation d. require that the enrollee be dropped from the plan

    asked by kisser08
  218. Mat/116 Algebra

    Hello I'm having some difficulities learning about the graphing, slopes, and equations, can you please help me with this: The price of an amusement park ticket is greather than or equal to $29 The inquality is? find the slope x+2y=4 A. M= B. or undefined

    asked by kiki83
  219. English

    Are you doing any volunteer work? How about your friends? 1. Yes, I am. They are doing volunteer work, too. 2. Yes, I do. They do volunteer work, too. (Which answer is right?)

    asked by rfvv
  220. Biology 101

    Summarize the inheritance of sex-linked traits through meiosis and how it relates to genetics.

    asked by Anita fields
  221. Chem

    How can i determine that the volume is decreasing? Of the following equilibria, only ??? will shift to the left in response to a decrease in volume. A) 2HI (g) H2 (g) + I2 (g) B) N2 (g) + 3 H2 (g) 2 NH3 (g) C) 4 Fe (s) + 3 O2 (g) 2 Fe2O3 (s) D) 2 SO3(g) 2

    asked by Ben
  222. pre-algebra

    6y+42=4y

    asked by alfred
  223. music

    i have to compare and contrast the gang stories from grease and west side story i need 5 things PLEASE HELP

    asked by Joelseph
  224. Physics

    A heavy freight train has a mass of 14000 metric tons. If the locomotive can pull with a force of 645000 N, how long does it take to increase it's speed from 0 to 69.8 km/h?

    asked by Bala
  225. SITES

    is cramster . com a free site ? I'm actually searching for sites that offer free homework help, gladly I found this one, but I'm wondering if there are others as well, that don't require money or an email address?

    asked by Anonymous
  226. Math for Liberal Arts

    Consider a test for illegal drugs that is 98% accurate. Lets test 3000 poeple, 2900 of whom do not use illegal drugs. What percent of the total positive tests were false? What is the chance of a person testing falsely positive twice in a row?

    asked by Keisha
  227. physics

    A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km and mEarth = 5.98 x 10^24 kg

    asked by randy
  228. College Physics

    A 75.0 kg ladder that is 3.00 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at a point 1.20 m from the base of the ladder. The coefficient of static friction at the base of the ladder is 0.800. There is no

    asked by Ali
  229. Math

    14-9/8=x

    asked by Anonymous
  230. english

    How do fix these two sentences below: 1. Stretching helped me increase my muscle strength and relieving tension on tight strained muscles, which I often used during my stress moment 2. Eating two cups of ice-cream every night is my habit because it has

    asked by Anonymous
  231. Global Issues (ms.sue)

    Here is the brief outline that I created. Outline: Intro: make my position (Pro side of the topic) 1st point: I think richer countries should take care of poorer countries because they have the resources and the ability to do so and they should use it to

    asked by y912f
  232. US History: FDR

    I don't understand what the problem was with international relations during the Great Depression when Franklin Roosevelt was president. something about exchange-rate stabilization. That FDR refused to take part in. Mainly, I don't know what the problem was

    asked by Amy
  233. math

    Part 1: A long jumper leaves theground at an angle of 21.7 degrees to the horizontal and at a speed of 10.6 m/s. The acceleration of gravity is 9.8 m/s^2. How far does he jump? Answer in units of m. Part 2: What is the maximum height he reaches? Answer in

    asked by Sally
  234. Algebra check+help?

    What percent of 225 is 99? So then I wrote out 225 Over X and then I wrote = To 99/100? Is that what you would do? Because if you add up all percents, you should always get 100? Could someone correct me and help me get the right answer? THANK YOU! -Allyson

    asked by Allyson
  235. Chemistry

    How do I convert 0.67275 M of acetic acid solution to V/V %?

    asked by Anonymous
  236. Science

    What is the power of 1,000 newtons, 3 meters and 60 seconds?

    asked by Paige
  237. 9th grade Math

    A rectangular floor that measures 3 m by 2 m is covered by 384 square tiles. Determine side length of each tile in centimeters Thanks!

    asked by Chris
  238. algebra

    solve this two sided inequality 7

    asked by pinki
  239. Pure math

    1.Using your calculator,solve 4 ø in each of de 4lowing equations correct 2 1 decimal place,and with de restriction that 0 degree lessthanequals ø lessthanequals 90 degree

    asked by Dirang
  240. calculus

    the sides of an equilateral triangle are increasing at a rate of 27 in/sec. how fast is the triangles area increasing when the sides of the triangle are each 18 inches long?

    asked by Anonymous
  241. English

    I have to do some ads on clothing and how do these sound? Grab it and GO....Prom dress for only $25.99. Make Fashion your Passion and get this 30% off dress from our dress shop. Tradition Country Collection Sweaters Style for only $23.99 each. 40 % off.

    asked by Teressa
  242. MATH

    can you please help me on how to find the LCM and give me and example.

    asked by catherine
  243. math car devalue

    James is interested in buying a new cadillac escalade. He did some research and found out thy on average the suv will cost 40,057.07 after 2 years of the purchase, and 19,192.53 after 5years. Find a rule that shows the depreciation of the vehicle. How much

    asked by john
  244. MATH

    how to add or subtract fractions with unlike denominators and give me some examples so i could understand. thank you.

    asked by catherine
  245. chemistry

    which of the following must be known precisely for the specific heat to be accurate. Answer a. the mass of the water in the calorimeter b. the temperature of the metal shot before it is immersed in the boiling water c. the mass of the boiling water

    asked by alex
  246. chem

    Give the general formula for any dialkene; that is, a straight-chain hydrocarbon with two double bonds along the chain. (Type your answer using the format CnHn+1 for CnHn+1.)

    asked by rebekah
  247. Social Studies

    What was the stubstance used to stuff the nostrils?

    asked by Duh
  248. History

    I don't understand what the problem was with international relations during the Great Depression when Franklin Roosevelt was president. something about exchange-rate stabilization. That FDR refused to take part in. Mainly, I don't know what the problem was

    asked by Amy
  249. Media Studies

    Hi, I am writing an essay for my media studies class on the topic; Has digital technology made professional journalists obsolete? What is the role of journalism in a digital society? Can anyone give me ideas for arguments I can come up with or evidence.

    asked by Savannah
  250. English

    Can you please check these sentences on Wordsworth's life, please? 1)William Wordsworth was born in Cumberland in the English Lake District, which was to become his main source of inspiration. 2)He was enthusiastic about the democratic ideals fostered by

    asked by Franco
  251. English

    1. What time do you go to bed? - I go to bed at 10 p.m. 2. When is your bed time? - It is 10 p.m. 3. What is your bed time? - It is 10 p.m. 4. What present did you receive on your birthday? 5. What did you receive on your birthday? 6. Which gift did you

    asked by rfvv
  252. math

    if julie takes 4 hours to type up a manuscript and pat takes 6, if they work together at 12:00, what time would they finish??

    asked by Anonymous
  253. English

    How do I write my essay in third person? Just want some examples. Thanks!

    asked by Taylor
  254. Physics

    A blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.2 m/s2. A green car arrives at the position of the stop-light 7.5 s after the light had turned green. What is the slowest constant speed which the

    asked by John
  255. social studies

    What countries and regions became part of the Persian Empire? My answer from readings is----- Mesopatamia, Asia Minor, Syria, Canaan, and the Phoenecian cities, Egypt,Western India, and Thrace. Are these correct?

    asked by Reed
  256. chemistry 101

    the valve between a 3.00-L tank containing O2(g) at 6.00 atm. and a 5.00-L containing N2(g) at 1.20 atm. is opened. Calcualte the ratio of partial pressures (O2:N2) in the container?

    asked by kim
  257. $th Grade Math input output tables

    Input x 2 Output y 9 how do you get 9?

    asked by Sam
  258. space

    Stars near the ______ should show the greatest Doppler shifts due to the earth's revolution. Why? Would it be stars near the ecliptic because it deals with the earth revolving and having motion.

    asked by Anonymous
  259. math

    y - 1 3/4 = -3 1/2

    asked by Aly
  260. math - check plz

    She has 2 to the 10th power of fruit flies in each of 2 to the 2nd power. How many fruit flies does she have in all? (answer as power) 2to the 11th power?

    asked by Summer
  261. Chemistry

    40. An element has the configuration [He]2s^2. a. Which element is it?- Beryllium b. Is it metal or nonmetal?- metal c. How many valence (or outer shell) electrons does it have?- 2 valence electrons. Is this correct? Thanks -MC

    asked by mysterychicken
  262. 4th grade math input output tables

    input x 1 2 4 5 6 8 9 output Y 7 9 13 _ _ _ _

    asked by Sam
  263. Math

    If x+y is 4 more than x-y, which of the following statements are true? I. x=2 II.y=2 III.xy has more than one value

    asked by Danielle
  264. english

    How do I fix this sentence? As the beat of the song went up, we screamed loudly in order to match the beat.

    asked by Anonymous
  265. math

    Can some one please help me I had developed jello brain today. Can some one explain to me why the line x = - 2 is avertical line. and what the slope would be for the line. and why its diffenrence for y = -2 . what would the slope be for y = -2. Please I am

    asked by davis
  266. finance

    Has the buildup in plant and equipment been financed in a satisfactory manner in the kramer corporation

    asked by pauline
  267. Percents and Porporitons help? ( Algebra) Check?

    What percent of 120 is 66? So on my paper.. I wrote 120 out of 100, because all percents add up to be 100 percent. And then I wrote = 66 over x. Is this correct? and then I would do the butterfly method? ( Cross Multiply) Thank you! -Allyson

    asked by Allyson
  268. Algebra

    a vehicle uses 1 tablespoon to drive 125 yards. How many miles can the vehicle travel per mile?

    asked by Randa
  269. healthcare

    What are some motivational methods for healthcare?

    asked by bobbi
  270. maths

    juan had $3000 in his savings account. a year later, he had $4000 because interest accured on his savings. find the percent increase.

    asked by tia
  271. maths

    paul is paid $5 per hour. one day paul works for 4 hours 15 minutes. calculate his total pay.

    asked by tia
  272. English

    How should I pronounce "Nasrredin"? This is a person's name.

    asked by rfvv
  273. Media Studies

    Hi I posted my essay topic earlier; but could anyone give me some ideas of the role of journalism in the digital society?

    asked by Savannah
  274. Senator

    Can you help me write a speech to become the high school senator? i need to get a good one that really hooks the kids.

    asked by Ashley
  275. Physics

    A heavy freight train has a mass of 14000 metric tons. If the locomotive can pull with a force of 645000 N, how long does it take to increase it's speed from 0 to 69.8 km/h?

    asked by Bala
  276. math

    input x 1 2 4 5 6 8 9 output Y 7 9 13 _ _ _ _ I have tried all ways add 6 plus 1 x4 plus 1 add 7 nothing works

    asked by Sam
  277. Paragraph, find error in paragraph

    A lot of people have wills. Everyone needs a will, but not all people have one. Wills are important because they explain who gets your stuff after you die. You don't want your things going to someone you don't want to get it. My Aunt Martha went to a

    asked by Anonymous
  278. Algebra Percent ( Check + Help)?

    What number is 60 percent of 85? So I wrote out on my paper.. 60 Over 100= x over 85 would I then cross multiply? Thankks for your help! - Allyson

    asked by Allyson
  279. 4th grade science

    What sea animal you get when you unscramble the letters gsntoe

    asked by Andre
  280. Biology (multiple choice!)

    What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?

    asked by Dawn
  281. English

    Can you tell me if these are correct? I have to tell if the verb is transitive or intransitive. 1. Charles !@#$%^&ens described the slums of London in his novels. 2. Terrible slums and poverty existed along the riverbanks. 3. In ancient times, traders from

    asked by Hayden
  282. math

    3a2 - (3a - x + b)

    asked by annonomus
  283. math

    Correct or ot correct? -1 3/4 y = 12 y= 6 6/7? I don't think so

    asked by Aly
  284. Math- practical purpose

    For many years, China has been the world's most populous country. However, India has been catching up, with 1132 million in mid-2007 and growing at 1.6% per year, versus China then with 1318 million and growing at only 0.6% per year. If these rates

    asked by sammy
  285. Health economics

    indicate at which point flat-of-the-curve medicine is experienced in the following example (image that anitbiotics have been prescribed for a given population of 1,000 elderly person

    asked by Taneshia
  286. human resources

    the four steps an organization should take to change its personality profile. What should the organization consider before developing such a plan?

    asked by Anonymous
  287. English

    I have one more to check. Restaurants and shops line the banks of the Thomas River in London. line=intransitive

    asked by Hayden
  288. us history

    What where some Reasons to Oppose the Emancipation Proclamation?

    asked by .....
  289. english

    Can someone help me fix this sentence? This sleep was my first time that I ever had a long, good nap of October month.

    asked by Anonymous
  290. MAth

    If x = log28, what is x?

    asked by BC
  291. math

    What is log2.135?

    asked by BC
  292. Environmental Science

    How is fresh water used in industry?

    asked by Nathan
  293. math inequalities please check

    A landscape designer has to design a rectangular pad of concrete at the centre of a rock garden. The length must be less than or equal to twice the width; the perimeter must be less than or equal to 40 m; and the area must be greater than or equal to 60

    asked by Sandi
  294. English

    How can I fix this? The most important thing was that yoga helped me fall asleep faster and improved my sleep quality.

    asked by Anonymous
  295. physics

    Part 1: A ball is thrown horizontally from the top of a building 28.6 m high. The ball strikes the ground at a point 80.3 m from the base of the building. The acceleration of gravity is 9.8 m/s^2. Find the time the ball is in motion. Answer in units of s.

    asked by autumn
  296. mgt 415

    What are the benefits to the employees, customers and management for using high performance teams?

    asked by ASHY
  297. US History: FDR

    "...nation's impulse to inflate had been the gold standard, under which inflating prices attracted imports, which were paid for in gold shipments, thus ... depressing prices, nipping the inflationary cycle in the bud." I don't get what this means.

    asked by Amy
  298. healthcare

    what are some motivational methods for healthcare?

    asked by bobbi
  299. english

    Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives

    asked by Jessica
  300. MGT415

    Describe the conditions necessary to create a HPT environment.

    asked by ASHY
  301. reading

    Some turtles live in the sea. Some turtles live in the land. Some turtles are pets and live in houses. The words below relate to different places where turtles live. Read the words. Then write the words in the groups where they belong. tank-beach-soil-heat

    asked by 3 grade
  302. Business Computer Information Systems

    is this appropriate for workplace e-mails and i was wondering if you could help me punctuate it correctly Hi I wanted to let you know that i'm going to be a late for work on October the 28th because of a personal reason

    asked by yelena
  303. English

    What is the plural form of roof? Would it be rooves?

    asked by Anonymous
  304. physics.

    Part 1: Janet jumps off a high diving platform with a horizontal velocity of 2.67 m/s and lands in the water 2.6 seconds later. The acceleration is 9.8 m/s^2. How high is the platform? Answer in units of m. Part 2: How far from the base of the platform

    asked by Autumn
  305. college

    Pojman argues that we should strive to form a world in which "the virtuous are rewarded and the vicious punished in proportion to their relative deserts." Do you agree with Pojman that we deserve what we earn, or do you see problems with his stance? Form a

    asked by Katrice
  306. 4th grade

    What is the different between reptiles and amphibians?

    asked by Jonathan
  307. Good Sites

    I'm actually searching for sites that offer free homework help, gladly I found this one, but I'm wondering if there are others as well, that don't require money or an email address?

    asked by Erin
  308. math

    EXPLAIN THE IMPORTANCE OF THE CENTROID IN DESIGN AND MANUFACTURING

    asked by Ted
  309. physics

    A heavy freight train has a mass of 14000 metric tons. If the locomotive can pull with a force of 645000 N, how long does it take to increase it's speed from 0 to 69.8 km/h?

    asked by Bala
  310. math

    Mr. Samuel has a 150 pennies in two jars there are 40 more pennies in one jar than the other, how many pennies are in each jar

    asked by mrs. yisrael
  311. health care marketing

    describe three key ideas or concepts you have learned regarding marketing strategies in health care.

    asked by Anonymous
  312. Math

    a side of a square is 10 meters longer than the side of a equalaterial triangle. The perimeter of the square is 3 times the perimter of the triangle

    asked by Edden
  313. Biology 101

    How are meiosis and genetics related?

    asked by Anita fields
  314. Psychology

    Describe in detail the two methods of language acquisition.

    asked by Diane
  315. geometry

    dteremine the probibility of drawing a white ball from a bag containing 7 blue, 5 green and 6 white balls

    asked by feroza
  316. math

    89 more than170 =

    asked by Anonymous
  317. healthcare

    can anyone help me with my healthcare question below ??????? thanks

    asked by bobbi
  318. Social Studies

    In what way is a state different from a country?

    asked by Kim
  319. 6th grade

    A fraction greater than 1/8 and less than 1/4 is in simplest form and denominator is 4 more than its numerator...what is the fraction?

    asked by Sean
  320. Science

    For a constant temperature, the water content of an air mass is 0.15 mg/l. If the saturation of air at that temperature is 0.50 mg/l, then the relative humidity is Fill in the Blank 01%. (Note: the answer to this question is a number.)

    asked by jjjj
  321. Math

    1. -3/4*-(1 5/6)*(-7/4)= 2. -3/4*(-1 5/6)*7/4= 3. -3/4*(-1 5/6)*(-7/4)*(-2 3/8)= 4. 3/4*(- 5/6)*7/4*(-2 3/8)= 5. 3/4*1 5/6*7/4*(-2 3/8)=

    asked by Zoe
  322. biology

    What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?

    asked by Dawn
  323. math

    strategies to solve 452+721+908

    asked by Anonymous
  324. I forgot to bring my homework home!!

    What should I do??

    asked by Erin
  325. 3rd grade

    Describe the properties of a round and bumpy shaped object. What tool can be used to observe the object in more detail?

    asked by Aly
  326. biochemistry

    calculate the isoelectric point of each of the following amino acids: glutamic acid, serine, histidine, lysine, tyrosine, and arginine

    asked by nicole
  327. English

    I forgot to include the following sentences. I really hope you can have a look at them. 1)The daffodils are described not as static like in a painting but as alive with motion. 2) Actually, they are fluttering and dancing in the breeze, and tossing their

    asked by Franco
  328. algebra

    use substitution x/3-y=3 2x+y=25

    asked by mike
  329. history

    how do you think the Emancipation proclamation will affect people’s attitudes towards the war?

    asked by :)
  330. physics

    How long would it take for the Earth to complete a full turn if a person at 56.4° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,385 km for the radius of Earth.

    asked by trisha
  331. chemistry

    what is the structure of histidine, arginine, tryptophan, proline and tyrosine at pH 4?

    asked by Anonymous
  332. college algebra

    factor 256x2-81y2

    asked by Lee
  333. Statistics

    Suppose that the probability is 1 in 3,900,000 that a single auto trip in the United States will result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips. Assume that events are independent: (a) What is the probability

    asked by Laura
  334. math

    Simplify the Expressions 1) -4(3x-3) + 9(x+1)

    asked by Alayasia
  335. social studies

    What was the substance usd to stuff the nostrils?

    asked by Deaire
  336. Social Studies

    Mummification Process

    asked by Carl
  337. algebra

    I get confused when solving for some of the fractions in my problem. how would you solve for 1+(-2/(sqroot 5))? I just need a refresher on the order of operations for it. Thanks!

    asked by sue
  338. math correct or not correct

    -25/32 g = 5/8 does g= - 4/5?

    asked by Anonymous
  339. English

    I did a few ads on clothing. Here are some more I've come up with. Yet, I still don't find them to be so sophisticated and cool. Could I please seek some assistance? Put on a fresh new look back to school with our deluze Liz Claiborne. 35% off. Renew your

    asked by Teressa
  340. Math

    Mark's checking account is overdrawn by $35. How much does he need to deposit to have a balance of $100?

    asked by Cindy
  341. Math

    Using only the numbers 1-8 without repeating any of them, what is _+_=_-_=_-_=_-_=_? And the last number has to be the same as the first cause it's in a circle don't forget!!

    asked by Ashley
  342. biology

    what is a close and permanent relationship between 2 different organisms ?

    asked by Kasarah
  343. math

    liza has three hundred seventen coins in her collection. Tamca has found five hundred eighty-one coins in her collection. Tamca has how many more coins then liza?

    asked by jojo
  344. college physics

    A particular grinding wheel is a uniform solid disk of radius 8cm and mass 3kg. While the wheel is spinning at 50rad/s. A tool is pressed against its rim in a way that causes a friction force of 40N. If the disk is just "coasting" when the torque is

    asked by Lauren
  345. Criminology

    I have described normative and legal definitions of crime but how is each for applied?

    asked by Charles
  346. HS Physics

    Two people start at the same place and walk around a circular lake in opposite directions. One walks with an angular speed of 1.10 10-3 rad/s, while the other has an angular speed of 3.90 10-3 rad/s. How long will it be before they meet? I can NOT figure

    asked by Sarah
  347. Chemistry

    23. Ductility is the ability to be hammered into sheets.- F? 25. A monatomic ion contains only one atom.- T 26. Iron (II) means the iron would have an oxidation number of +2.- F? 27. A polyatomic ion is a group of atoms acting as a single ion.- T 30. The

    asked by mysterychicken
  348. 8th grade

    why do teachers give us esay projects and make it seem harder than it is when it really is not neccessary?

    asked by alexis>3
  349. Algebra

    if x-4 is 2 greater than y+1, then by how much is x+6 greater than y?

    asked by Anonymous
  350. Algebra 2

    Solve: 4a+9b=8 8a+6c=-1 6b+6c=-1

    asked by Kelsie
  351. chemistry

    Metal Specific Heat (J/g-C) Al (s) 0.900 Au(s) 0.129 Cu(s) 0.385 Fe(s) 0.444 Hg(l) 0.139 H2O(l) 4.184 C2H5OH(l) 2.46 Using the above table, determine the final temperature if 713.6J is released from a 48.2g sample of copper initially at 93.8o C. i keep

    asked by christine
  352. algabra 1

    The following figure has a length of 5 and a width of 9. What is the area of the figure?

    asked by devonte
  353. calculus

    Given two functions as: f(x) = x2-x-1 and g(x) = 3/x Find fog(x) also find the domain of f, g and fog

    asked by mary
  354. ms. sue

    ms. sue i had to make more ads but this time on clothing. have i made mine seem powerful?

    asked by Teressa
  355. Spelling!

    I have a hard home work with spelling. i have to write sentences using each word. It doesn't sound so hard right?? The words are : Spelling List-Possessives anybody's brother's brothers' companion's companions' lions' president's presidents' teenager's

    asked by Erin
  356. Probability

    Suppose that the probability is 1 in 3,900,000 that a single auto trip in the United States will result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips. Assume that events are independent: (a) What is the probability

    asked by Laura
  357. math

    correct or ot correct? x - 2 1/3 = -4 4/15 x= - 2 7/15?

    asked by Anonymous
  358. English

    What wrong with this sentence? run on? fragment? How can I fix it? Thanks! Lots of public schools are adopting the idea of wearing school uniforms in the belief that they will help improve the overall conduct and academics of their students.

    asked by Addi
  359. math

    EXPLAIN THE IMPORTANCE OF THE CENTROID IN DESIGN AND MANUFACTURING

    asked by Ted
  360. calculus

    Solve the two sided inequality and show the solution on real line 7 < 1-2x ≤ 10

    asked by mary
  361. Chemistry

    42. List 2 things a chemical formula indicates about a compound: -It indicates the elements present in the compound. -The relative amount of each compound. Are those correct? 44. What element do most of the polyatomic ions contain? Thanks -MC

    asked by mysterychicken
  362. calculus

    Find all critical numbers: x^(1/3)-x^(-2/3)?

    asked by Zel
  363. Percent algebra help?

    1.44 Tax on an item priced at 24.00? How would I solve this? I need to find the percent? Would I just divide 1.44/24.00? Thanks Allyson

    asked by Allyson