Questions Asked on
April 25, 2011

  1. math

    what is the answer to What Do You Get if a Bunch of Bad Guys Fall in the Ocean?

    asked by jeremy
  2. Chemistry URGENT! I really need help!

    Consider the following reaction occurring at 298K BaCO3(s)-> BaO(s) + CO2 (g) show that the reaction is not spontaneous under standard condition by calculating delta G rxn. I calculated delta G and got 219.7 kJ, now the question asks if BaCO3 is placed in

    asked by Trista Nigh
  3. Chemistry

    A 500 mL metal cylinder holding 0.100 moles of helium gas is known to rupture at a pressure of 10 atmospheres. At what temperature, in °C, will the container fail? Here is what I came up with: T= (1.00mol x 0.0821 LxATM/KxMOL) / 10atm x 0.5L =0.01642K

    asked by Thao
  4. Chemistry

    Ideal gas law question A 4.0 liter container has two gases inside, neon and argon. It is known that at 18 °C, the total pressure of the combined gases is 0.850 atm. If it is known that there are 0.100 moles of neon in the container, how many moles of

    asked by Thao
  5. Calc

    Use differentials to approximate the change in the volume of a cube when the side is decreased from 8 to 7.99 cm. (in cm^3) Thank you so much!!

    asked by Erica
  6. physics

    A 0.20-kg mass is hung from a vertical spring of force constant 55 N/m. When the spring is released from its unstretched equilibrium position, the mass is allowed to fall. Use the law of conservation of energy to determine (a) the speed of the mass after

    asked by Syed
  7. physics

    The figure below shows two examples of SHM, labeled A and B. (The vertical axis is marked in increments of 0.2 m and the horizontal axis is marked in increments of 0.5 s.) What are the following quantities for each SHM? A B (a) the amplitude 1 m 2 m (b)

    asked by md8
  8. Chemistry

    PCl5 --> PCl3 + Cl2 (Kp = 630 at 546 K) A system is prepared by placing equimolar amounts of the three gases shown in the equation above in a suitable rigid container held at constant volume. Equilibrium is established at 546 K. (A) When equilibrium is

    asked by Molly
  9. math

    write 20 million,five hundred thousand in expanded form using exponents

    asked by jill
  10. the parts of speech

    1. In the following sentence, identify the part of speech of the italicized word. Large fish swim swiftly in the sea. A. Verb B. Noun C. Adjective D. Adverb 2. In the following sentence, identify the part of speech of the italicized word. Large fish swim

    asked by Anonymous
  11. Geometry

    Both Trapezoids are similar. The area of the smaller trapezoid is 26 ft. square. Which is the best approximation for the area of the larger trapezoid if the base is 20 ft. in the smaller trapezoid base is 16 ft.

    asked by Nesha
  12. algebra

    If license numbers consist of 3 letters followed by 3 digits, how many different licenses could be created having at least one letter or digit repeated?

    asked by susie
  13. math

    a sidewalk is built 10 bricks wide by laying each brick side by side. How many inches wide is the sidewalk if each brick measure 3 5/8 inches wide?

    asked by Anonymous
  14. math

    A six-sided die with sides numbered 1 through 6 is tossed twice. What is the probability of getting a number larger than 4 on both throws

    asked by Lo
  15. chem.

    How many grams of CO2 and grams of H2O are produced when 13.0g C2H2?

    asked by Kelsey
  16. chemistry

    How many grams of O2 are required to burn 13.0g of acetylene?

    asked by Kelsey
  17. math

    Name the property that is illustrated. A. 7x6=6x7 B. 7+(1+9)=(7+1)+9

    asked by Lisa
  18. chemistry

    A 1.00-g sample of carbon from a modern source gave 15.3 disintegrations per minute. A sample of carbon from an “old” source gave 920 disintegrations per hour. What is the age of the “old” sample of carbon? The half-life of carbon-14 is 5.73×103

    asked by Eddy
  19. statistics

    Using the z table, find the critical value (or values) for an = 0.12 right-tailed test.

    asked by Anonymous
  20. Chemistry

    Calculate the solubility of calcium sulfate in grams solute per 100 grams of solvent. Assume that the volume occupied by the solute in the solution is negligibly small. (Ksp for CaSO4 = 2.4 X 10^-5)

    asked by Boo
  21. statistics

    According to Beautiful Bride magazine, the average age of a groom is now 26.2 years. A sample of 16 prospective grooms in Chicago revealed that their average age was 26.6 years with a standard deviation of 5.3 years. What is the test value for a t test of

    asked by Anonymous
  22. trig

    what is angular velocity if 57 revolutions are completed in 8 minutes?

    asked by Devann
  23. Calculus

    A ostrich farmer wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the rectangle (see the figure below). He has 820 feet of fencing available to complete the job. What is the largest possible total

    asked by Amanda
  24. Chemistry

    Suppose you had an unknown solution that contained either dissolved NaCL, or NaNO3. You added AgNO3 to the unknown solution and observed that no solid forms. What can be concluded about the unknown solution? (use the solubility rules

    asked by Lou
  25. analogy

    arson:crime rose:_________ It must be 7 letters long.

    asked by hannah
  26. Algebra

    A farmer plans to plant 270 acres of his farm with wheat and soybeans. For every 2 acres of land planted with soybeans, the farmer wants to plant 7 acres of land with wheat. The farmer uses the following system of equations to determine how many acres of

    asked by mary
  27. Trigonometry

    If sin A=3/5 and cosB = 24/25 and angle A and angle B are both in quandrant 1. What is sthe exact value of cos (A-B)?

    asked by Carol
  28. statistics

    A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high

    asked by lisa
  29. statistics

    Suppose a random sample of 36 is selected from a population with a standard deviation of 12. If the sample mean is 98, the 99% confidence interval to estimate the population mean is

    asked by mona
  30. calc

    The rate that an object cools is directly proportional to the difference between its temperature ( in Kelvins) at that time and the surrounding temperature (in Kelvins). If an object is initially at 35K, and the surrounding temperature remains constant at

    asked by Erica
  31. Calc

    Use differentials to approximate the change in the volume of a cube when the side is decreased from 8 to 7.99 cm. (in cm^3) Thank you so much!!

    asked by Erica
  32. Chemistry

    How many milliliters of 18 M H2SO4 are required to react with 250 mL of 2.5 M Al(OH)3 if the products are aluminum sulfate and water?

    asked by Emma
  33. Physics please help

    The engine of a train has a mass of 5x10^4 kg. it can accelerate six railway cars having a total mass of 3x10^5 kg by 0.4 m/s^2 (the 6 railway cars have a combined mass of 3x10^5). what acceleration can the same engine using the same force give to four

    asked by Jess J
  34. Calc

    A particle moves along a path described by x=cos³t and y=sin³t. The distance that the particle travels along the path from t=0 to t=π/2 is... Thank you!

    asked by Erica
  35. Spanish

    6. Mi abuela tiene un abrigo de ____ en su guardarropa, pero casi nunca lo lleva. a. pelo b. madera c. piel d. algo C? 9. Dicen que el aire en el campo es más ______ que en la ciudad. a. contaminada b. puro c. guapo d. sucia Not sure.. 11. "¿Qué me

    asked by mysterychicken
  36. Algebra 2

    If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. x – 2y = 2 x + 3y = 17

    asked by Mike
  37. Calculus

    Could someone work this out so I understand it. Thanks Given the supply function p=S(x)=5(e^0.02x-1) Find the average price (in dollars)over the supply interval [31,36] The 0.02x in the only thing ^ on the e

    asked by Jay
  38. Vocabulary

    inhibited is to qualms as

    asked by Reggie
  39. Physics

    Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is

    asked by asif
  40. physics

    A monochromatic light beam with energy 204eV is used to excite the Be+3 (H –like atom with Z=4) from its ground state to some excited state m. Neglect the finite nuclear mass correction. a) Find the quantum number m of this excited state. b) Following

    asked by qwer
  41. physics

    Hydrogen atom is initially in the ground state. It is excited by a photon bombardment and it then undergoes a transition from n = 3 to n=2 state. a) What is the frequency of the bombarding photon? b) What are the energy, momentum and the wavelength of the

    asked by qwer
  42. Psychology

    Allie has developed a theory concerning test grades. She believes that there is a relationship between her frequency of study and the resulting grade. In order to test her theory, she has to design a/an: a theory b principle c hypothesis d strategy I think

    asked by Nicci
  43. Calc

    What is the limit as x approaches infinity of 4xsin(1/x)? Can you also show me how you get the answer? Thank you so much!!

    asked by Erica
  44. Physics

    Tom Brady passes a football – at a velocity of 50 ft/s at an angle of 40 degrees to the horizontal – toward an intended receiver 30 yd straight downfield. The pass is released 5 ft above the ground. Assume that the receiver is stationary, is isolated

    asked by Rob
  45. physics(help!!!!!!!)

    A 1200kg car going 25m/s is brought to a stop using its brakes. Assuming that a total of approximately 20kg of iron in the brakes and wheels absorbs the heat produced by friction. What was the car’s original kinetic energy and after the car has stopped,

    asked by H.T
  46. math

    63 divided by -7 is what?

    asked by cassandra
  47. physics

    What is the net force on a rock that weighs 500N if the weight of the water it displaces is 300N?

    asked by Ivey
  48. Physics - Please Help

    A 60 year old person has a threshold of hearing of 81.0 dB for a sound with frequency f=10,000 Hz. By what factor must the intensity of a sound wave of that frequency, audible to a typical young adult, (sound level=43.0 dB) be increased so that it is heard

    asked by Emily
  49. Physics

    Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is

    asked by asif
  50. Physics

    In lab, a meter stick has its center of gravity at the 45.5 mark. The stick is supported with a meter stick clamp at the 25.0 mrk. A 3.500 kg mass is hung at the 18.2 cm mark to maintain rotational equilibrium. Whats is the calculation of the

    asked by Joseph
  51. Physics

    a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

    asked by Jackie
  52. math

    A taxi charges a $5 fee plus $3 for each mile. Mrs. Gonzalez paid a total of $41 for a taxi ride. The equation below represents the situation. 3m+5=41 How many miles did Mrs.Gonzalez ride in the Taxi?

    asked by olvia
  53. Chemistry

    I need to know the most polar bond in each molecule. HSCH2CH2OH / HC12F / HOCH2CH2NH2

    asked by Chris
  54. math

    a carpet measures 7 meters 3 decimeters in length and 4 meters 2 decimeters in width. what is its area in square meters?

    asked by kira
  55. math

    State whether the events described are independent or dependent and determine the probability: A card is pulled from a well shuffled deck of standard playing cards and is not put back in the deck. A second card is drawn from the deck. What is the

    asked by Lo
  56. Chemistry

    I need the structural formulas for the organic compound 1,3,5 Trichlorocyclohexane

    asked by Chris
  57. Chemistry

    Suppose you had an unknown solution that contained either dissolved NaCL, or NaNO3. You added AgNO3 to the unknown solution and observed that no solid forms. What can be concluded about the unknown solution? (use the solubility rules

    asked by Lou
  58. history

    Compare Nixon's policies of engagment to foreign policy strategies during the Cold War. Describe the connection between student unrest and the Vietnam War. Explain the political and social outcomes of the end of the war in Vietnam.

    asked by Gloria Jackson
  59. chem

    which is a stronger acid HCL or HC2H3O2?

    asked by tonantzin
  60. Physics

    I have been working on this homework question for a bit, but I just can't get it. Please help me! Where must an object be placed with respect to a convex lens (f=20cm) to generate an upright image that is 4 times as large as the object? 10 cm in front 10

    asked by Sonia
  61. math

    Jim wants to deposit money in an account to save for a new stereo system in two years. He wants to have $4,000 available at the time. The following rates are available to him: 6.2% simple interest 6.1% compounded annually 5.58% compounded semiannually

    asked by Sabrina
  62. physics

    2. a body of mass 20kg is released from rest t the top of a rough slope which is inclined at 30 degrees to the horizontal.six seconds later the body has a velocity of 21 m.s down the slope. find the resistance to motion in newtons experienced by the body?

    asked by janell
  63. Math

    Find each probability if you pick one marble, replace it, then pick a second marble. P(black, white) The bag contains 1 black, 2 white and 3 striped.

    asked by Esteban
  64. Physics

    An object, O, is placed 18 cm from the center of a converging lens of focal length, f= 6 cm as shown. O F F (a) On the illustration, sketch a ray diagram to locate the image. (b) Is the image real or virtual? Explain your answer. (c) Using the lens

    asked by Anonymous
  65. Math

    Could someone work this question out so I understand it. Thanks The marginal price dp/dx at x units of demand per week is proportional to the price p. There is no weekly demand at a price of $100 per unit [p(0)=100], and there is a weekly demand of 8 units

    asked by Jules
  66. science

    Q.4. Calculate the binding energy per nucleon of 20 Ca40 which has atomic mass of 39.975 a.m.u The mass of hydrogen atom is 1.0078 a.m.u and that of neutron is 1.0086 a.m.u (1 a.m.u = 931 Mev) (10)

    asked by Niranjan
  67. english

    I was embarrassed that I mispoke. I was embarrassed that I mis-spoke. I was embarrassed that I misspoke.

    asked by yvonda
  68. Chemistry

    Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes if a solution that contained dissolved NaF and a solution NaCl. Would you expect a reaction, if Si write the balanced chemical equation

    asked by Lou
  69. chem

    A 2.5L flask @ 15 degrees C cntains three gases. The partial pressure of N2 is 0.32 atm, and the partial pressure of the other two gases, He and Ne are 0.15 atm and 0.42atm respectivly. What is the total pressure in atm on the 2.5L flask?

    asked by ALEX6
  70. math

    i really need help with my homework so i can graduate in time. i have only 3 questions that i need help with because math is my weakest subject. so can someone please help me. 1. the formula for converting centigrade temperature to Fahrenheit is F = 9/5 C

    asked by sha'kira
  71. physics

    Two capacitors of capacitance C_5 = 6.00 \rm \mu F and C_6 = 3.00 \rm \mu F are added to the network, as shown in the diagram. (Part B figure) Find the equivalent capacitance C_B of the new network of capacitors.

    asked by Anonymous
  72. Physics please help

    The engine of a train has a mass of 5x10^4 kg. it can accelerate six railway cars having a total mass of 3x10^5 kg by 0.4 m/s^2 (the 6 railway cars have a combined mass of 3x10^5). what acceleration can the same engine using the same force give to four

    asked by Jess J
  73. Finance

    Using Monte Carlo simulation, calculate the price of a 1-year European option to give up 100 ounces of silver in exchange for 1 ounce of gold. The current prices of gold and silver are $380 and $4, respectively; the risk-free interest rate is 10% per

    asked by Justin
  74. science

    A stretched string has a third harmonic frequency of 600 Hz. What is the frequency of the second harmonic?

    asked by Anonymous
  75. chemistry

    The molal freezing point constant for water is 1.86 C/m. at what temperature will a micture of 2.00g of CalCl2 and 25.0g of water freeze?

    asked by Hannah
  76. Physics

    A ray of light hits a side of Lucite ( n = 1.5) prism at 50 degree. Assuming that the nearest vertex has an angle of 70 degrees, what is the angle of light that leaves the prism.

    asked by Jeremy
  77. math

    How many pieces of ribbon 1 4/5 yd long can be cut a length of ribbon 9 yd long?

    asked by maria
  78. Accounting

    Compute the price of $7,936,343 received for the bonds by using the tables of present value in Appendix A. (Round to the nearest dollar.) Your total may vary slightly from the price given due to rounding differences. Present value of the face amount $

    asked by Kieran McCamment
  79. chemistry

    what are the oxidatoin numbers in this chemical reaction Ni+H2SO4=H2+NiSO4? is it Reactants: Ni=0 H=1 SO4=-2? Products:H=1 Ni=2+ SO4=-2? what is being oxidized? reduced? what is the oxidizing agent? reducing agent? is Ni being oxidized and is reducing

    asked by chemdumby
  80. Physics

    a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

    asked by Cole
  81. chem

    How many grams of CaCl2 would be required to be added to water to prepare 1 Liter (1000ml) of a 1.72% (w/v) aqueous solution of CaCl2?

    asked by ALEX9
  82. Physics

    a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

    asked by brad
  83. math

    i am a number between 20 and 30. when you put me into 6 equal groups, there is an even number in each group and 1 is left over. what number am i?

    asked by annette
  84. Chemistry

    Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes of a solution that contained dissolved NaF and a solution that contained dissolved NaCl. Would you expect a reaction, if so write the balanced chemical equation?

    asked by Anonymous
  85. Probabilility/Statistics

    You have $5000 to invest. Two options: (1) 67% chance of making a return of $1000 or getting nothing. (2) 50% chance of making $300 and 50% mking $700?

    asked by Joan
  86. Accounting

    #9 Unrecorded Liability: Adjusting Entry Refer to PE 4-8. (1) Make the adjusting entry necessary on the company’s books with respect to this loan on December 31. (2) Make the journal entry necessary on the company’s books on the following April 30 to

    asked by Sondra
  87. math

    State whether the events described are independent or dependent and determine the probability: A bag contains 7 red checkers and 11 black checkers. One checker is drawn and replaced. Then a second checker is drawn. What is the probability that a red

    asked by Lo
  88. CHEMISTRY

    ETHANOL (C2H5OH) HAS A DENSITY OF 0.80g/ml. IF A 10%(v/v) MIXTURE OF ETHANOL IN WATER WAS PREPARED HOW MANY GRAMS OF ETHANOL WOULD BE IN 100ML OF THE MIXTURE? (ASSUMING MIXED VOLUME IS THE SUM OF THE PARTIAL VOLUME)

    asked by PLEASE HELP!
  89. Writing

    I have to write my rough draft for a research paper. I have to include a thesis statement and an attention grabber. Can someone give me some examples of attention grabbers please?

    asked by Courtney
  90. chemistry

    A 1.00-g sample of carbon from a modern source gave 15.3 disintegrations per minute. A sample of carbon from an “old” source gave 920 disintegrations per hour. What is the age of the “old” sample of carbon? The half-life of carbon-14 is 5.73×103

    asked by Eddy
  91. Psychology

    A theory can be defined as: a an attempt to test behavior and thought process. b an accurate description of problem-solving behavior. c the basis for relationships among facts and principles. d the application of the scientific method through statistics. I

    asked by Nicci
  92. math

    A rectangle has an area of 72 square inches. The length of the longest side is twice the length of the shortest side. What is the length of the rectangle?

    asked by dasha
  93. trig

    given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches

    asked by Devann
  94. physics

    A train whistle emits a sound with a frequency of 1000 Hz when standing in the station. If the same whistle is blown when it is moving away from the station at 40 mph what will be the approximate frequency someone standing at the station will hear?

    asked by Anonymous
  95. MGT 435

    Submit a 3-5 page double-spaced paper based on an “Organizational Diagnosis” of an organization, department area, or organizational system you determine is in need of change. Your perspective throughout this process is that of a consultant and your

    asked by Landa
  96. physics

    A car traveling 50 m/s has tires tires that with radii of 0.25 m. The driver of the car hits the brakes and brings the car to a stop in 5 seconds. What is the angular acceleration of the tires on the car?

    asked by bejay
  97. Physics

    An electron that has velocity v = (3 x 105 m/s) and moves along positive x direction through the uniform magnetic field B = (0.8T) which is along the positive z direction. a. Find the force on the electron (magnitude and direction). (e = - 1.6 x 10-19 C,

    asked by asif
  98. geology (VERY X3 URGENT)

    i have an assignment that i have to email back my friend on identifying minerals. simple enough the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn

    asked by needhelp
  99. geology (urgent)

    i am having trouble finding how a shield volcano erupts and how a cinder cone volcano erupts. dont they all erupt the same? i gues they dont please help and thank you

    asked by needhelp
  100. Physics

    a 800 gram ball at the end of a cord is whirled in an almost horizontal circle of radius 1.50 meters. its tangential speed in the circle is 10 meters per second. What must be the tension in the cord? What angle does the cord make with the horizontal?

    asked by Jackie
  101. math

    Right triangle ABC is similar to triangle XYZ. If XY = 35 cm, YZ = 70 cm, and AB = 5 cm, then what is the length of line segment BC?

    asked by anonymous.
  102. statistics

    if 24 of the 26 students passed a test what percent of the students passed the test

    asked by ca
  103. Chemistry

    I need the name of the following compounds using the IUPAC method: O CH2CH3 O || | // / \/ \/ \ OH

    asked by Chris
  104. algebra

    Solve the following system of equations: x + 2y - z = 2 -3x + y + z = -9 x + y - 2z = 5 I came up with (-2,-11/3, -2) Is this correct?

    asked by mary
  105. Physics

    You are driving your race car around a circular test track. Which would have a greater effect on the magnitude of your acceleration, doubling your speed or moving to a track with half the radius? Why?

    asked by Rob
  106. Chemistry

    Calculate the pH at the following points during the titration of 100.0 mL of 0.20 M acetic acid (Ka for acetic acid = 1.8 x 10-5) with 0.10M sodium hydroxide 1. before addition of any base 2. after addition of 30.0mL of base 3. after addition of 100.0mL of

    asked by Michael
  107. economic

    supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expectedInflation during the 1970s was much higher than most people had expected when the decade began.How

    asked by maya
  108. Chemistry

    I need the name of the following compounds using the IUPAC method: NH2 CH2 | | Br\/ \/\/

    asked by Chris
  109. us history

    I need help on a small essay on why the embargo act of 1807 wasconsiderd a disaster

    asked by isaiah
  110. san bernardino valley college

    A rectangular rm. containing 192 sq.ft longer than it is wide. How long of a piece of crown molding is need to trim the bper. os the ceiling.?

    asked by carmelita
  111. 5th grade math

    Kat has 30 vehicles. Some are bicycles and some are cars. These vehicles have a total of 88 wheels. How many bicycles are there?

    asked by mary
  112. math

    Perdict how many times the cube will land on the letter c if u toss the cube 30times ?

    asked by eddie
  113. Chem Webwork UCI

    Complete the table below: What is the pH of the solution created by combining 0.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH: 0.70 pH w/ HCl: 1.08 pH wHC2H3O2: 3.23 Complete the table

    asked by Michelle
  114. chem

    a 9.6L sample of hydrogen gas (H2) @ 88 degrees C is cooled until its final vol was 3.4L. If ther are no pressure changes what is the final temp?

    asked by ALEX5
  115. physics

    1. a particle A of mass 150g lies at rest on a smooth horizontal surface. a second particle B of mass 100g is projected along the surface with a speed of u m.s and collides directly with A. on collision the masses coalesce and moves on with a sped of 4 m.s

    asked by janell
  116. Social Studies PLease Help

    i need some child labor political cartoons

    asked by macy
  117. Physics

    a 800 gram ball at the end of a cord is whirled in an almost horizontal circle of radius 1.50 meters. its tangential speed in the circle is 10 meters per second. What must be the tension in the cord? What angle does the cord make with the horizontal?

    asked by kris
  118. gr10 science

    The products of the reaction are iron (III) hydroxide and sodium chloride. How could I write a word equation for this reaction?

    asked by Rebecca
  119. Physics help please

    A middle C (262 Hz) on a flute is heard when an air column that is 0.63 meters long resonates at zero Celsius. a.How fast will sound travel if the temperature increases by 10 degrees? b.By what factor will the frequency change?

    asked by Sallias
  120. Calc

    Find the integral from 1 to 0 of arcsin(x)dx Thank you!

    asked by Erica
  121. Physics

    A crowbar is used to wrench open a wooden crate. The crowbar is situated so that a point 4 cm from the end digging into the box acts as a pivot point. The crobar is gripped on the other side, 35 cm away from the pivot. If the person exerts a force of 114

    asked by Sara
  122. Math

    Mario was on a 21-mile hiking trail.He walked 3/7 of the trail before stopping for lunch.How far did he walk before lunch? Explain your answer

    asked by Frances
  123. Chemistry

    106 g of iron at 84.0°C are placed in contact with 205 g of silver at 11.0°C. If no heat is lost to the surroundings, what is the final temperature of the metals? The specific heat of iron is 0.418 J/g·°C and that of silver is 0.251 J/g·°C. 92.0 g of

    asked by Becky
  124. physics

    Does the minimum height of a mirror required so that a man can see himself completely depend on his distance from the mirror?

    asked by Annie
  125. Accounting

    What is the equation for a simple interest rate of 47,000 note at 12 percent in 3 years? Please help resolve.

    asked by Donna
  126. math

    Add and simplify. 3/4+1/10+7/15

    asked by Devon
  127. Math

    if two polygons are congruent, then they are similar. What is the contrapositve of this statement?

    asked by Nicki
  128. physics

    A 65 g meter stick has two masses, each 250 g placed upon it. The first is located at 72 cm and the second located at 41 cm. Where should you place your finger if you wished to balance the meter stick? Give your answer in cm.

    asked by paige
  129. economic

    supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected. Using a method similar to the GDP deflator, compute the percentage change of the overall price

    asked by maya
  130. College math/bus calc

    A rectangular-shaped garden has one side along the side of a house. the other three sides are to be enclosed with 60ft of fencing. what is the largest possible area of such a garden?

    asked by Hannah
  131. Math

    the following stem-and-leaf plot shows the number of books checked out from the school library by each studentin Mrs. Donham's fourth-grade class 0/6 1/1 3 8 2/2 2 3 7 8 3/0 0 0 1 2 4 4 5 6 9 9 4/1 2 5 which interval had the most students a-30-39 b-20-29

    asked by Phyllis
  132. business

    What is PPP?

    asked by Tiara
  133. calc

    If a particle moves in the xy-plane so that at time t>0 its position vector is (e^(t²), e^(-t³)), then its velocity vector at time t=3 is...? Thanks so much!

    asked by Erica
  134. ALGEBRA

    A golf ball is tossed straight down out of an airplane. The downward velocity of the ball at various times is given in the table below. SEC AFTER THROW DW VELOSCITY X m/s Y 1 21.8 1.6 27.68 2 31.6 2.2 33.56 What is the slope of the line that firs this

    asked by mary
  135. chemistry

    using this equation: Ni+H2SO4=H2+NiSO4 how many liters of hydrogen gas at 298degK and 2.5atm could be produced if you react 25 grams of nickel metal?

    asked by chemdumby
  136. 5th grade math

    Write twenty million,five hundred thousand in expaned notation form using exponents. would that be (20x10tothe 8thpower)+(500x10to the 5th power)

    asked by jill
  137. Calc

    What is the volume of the solid generated by rotating about the y-axis the region enclosed by y=sinx and the x-axis, from x=0 to x=π? Thank you for your help!!

    asked by Erica
  138. Probability

    In a 1970’s game show, a contestant was given a choice of three doors of which one contained a prize. The other two doors contained gag gifts like a chicken or a donkey. After the contestant chose an initial door, the host of the show then revealed an

    asked by Lisa
  139. Math

    Prove that if sin doesn't equal 0, then 1+cot^2=csc^2. HELP!!!!!!!!!!!!

    asked by Briana
  140. Physics

    a 1.75kg pistol lies at rest on an essentially frictionless bench. it accidentally fires and shoots a 25 gram bullet parallel to the bench. How far has the bullet moved by the time the gun has recoiled 2.60mm?

    asked by Cole
  141. English Writing

    i have an assignment that i have to email back my friend on identifying minerals. the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn the write up

    asked by needhelp
  142. Accounting

    #15 Supplies: Original Purchase and Adjusting Entry On January 1, the company had office supplies costing $4,600. On March 23, the company bought additional office supplies costing $8,200; the company paid cash. On December 31, a physical count of office

    asked by Sondra
  143. Spanish-7th grade-Please check

    1.I have to correct this sentence- Mi amigo viene de el cine. I think I rewrite it as Mi amigo viene del cine. 2. Ella va a el centro comercial. I think I correct it this way: Ella va al centro commercial. 3. Ellos dorem. I correct it by writing it this

    asked by Lindsay
  144. Math-Functions

    If g(x) = (x + 1)/x,find a) g(1) b) g(0) c) g(-1) d) g(x - 1)

    asked by Sandhya
  145. Chemistry - Ksp

    i did an experiment where we titrated HCl on calcium hydroxide, and now i am confused with the calculations, i do not know if i am correct, so please help me out... Trial One volume of HCl used - 11.20mL concentration of HCl - 0.04mol/L so to get moles of

    asked by Farah
  146. Chemistry

    What is the Delta H value for water that is evaporation in Joules?

    asked by Willy
  147. accounting

    On July 1, 2010, Brower Industries Inc. issued $8,900,000 of 9-year, 10% bonds at an effective interest rate of 12%, receiving cash of $7,936,343. Interest on the bonds is payable semiannually on December 31 and June 30. The fiscal year of the company is

    asked by Kieran McCamment
  148. Calculus

    find the volume OUTSIDE the cylinder x^2+y^2=9 and INSIDE the sphere x^2+y^2+z^2=25

    asked by Jen
  149. Algebra

    Use Gauss-Jordan to solve 3x + 2y = -4 4x – 2y = -10

    asked by Will
  150. Social studies

    What are some of the elements that contributed to India's rich history?

    asked by Kaylin
  151. math

    A box contains 6 red balls, 4 white balls, and 5 green balls. If three balls are drawn in succession without being replaced, what is the probability that they are drawn in the order red, white, green?

    asked by Lo
  152. Socials--no sites.

    What happened on April 1st, 1999? Why is this significant? On April 1st 1999, the NorthWest Territories were split in two. This was so significant because it's what created Nunavut and the Western Territory. What does this area have for resources? For

    asked by Anonymous
  153. Chem

    How many grams of O2 are required to burn13.0g of acetylene? The answer I got is 40gO2 is this right.

    asked by Kelsey
  154. ECONOMICS

    How did the gold standard promote stability?

    asked by TYNESHIA
  155. Social Studies(child Labor)

    i was seeing the poltical cartoon with the child labor exploiter and i need help interpet

    asked by macy
  156. Job Posting

    What would be some pros and cons about working at Purdy's chocolates?(chocolate store)? One thing I know is that you have to be chocolate knowledable for this job. Other than that, what are some pros and cons?

    asked by Anonymous
  157. math

    2m shorter than twice side b and side c 3m longer than side b find the length of each side

    asked by jem,s
  158. trig

    What is the shortest possible length of a triangle side facing an angle of 20 degrees, if one of the other sides is 5? (answer should be a decimal number, correct within 0.001)

    asked by sarah
  159. chemistry

    how many grams of NH3 are in 250 ml of a 20% (w/v) ammonia solution

    asked by alex
  160. chemistry

    Nickel2 sulfate is produced when elemental nickel metal is dissolved in sulfuric acid to make nickel2 sulfate. Hydrogen gas is also released in the process. what is the balanced equation for this chemical reaction?

    asked by chemdumby
  161. statistics

    Practice Problem #16 pg. 307: A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The

    asked by lisa
  162. English

    You corrected this sentence: Don't talk about me as ancient: Don't talk about me as if I'm ancient. Can you explain me the difference between "ancient" and "old"? Ancient, I believe, is no longer used or does it have a negative connotation? If you want to

    asked by Henry1
  163. Chem Webwork

    Complete the table below: What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted with 100 mL of water (like it will be in the experiment you perform in lab)? mL NaOH: 0.70 pH w/ HCl: 2.14 pH w/ HC2H3O2: ??? I got

    asked by Michelle
  164. Maths and Physics

    A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that each motion of P consists of either (i) a periodic oscillation between two extreme points, or (ii) an unbounded motion with one extreme point,

    asked by AKUMA
  165. math

    In a drawing for a DVD player, there are 100 tickets in a box. Five of the cards are marked with a star and the rest are marked with an X. To win, Carmen must draw two cards, without replacement, both of which are marked with a star. What is the

    asked by nnnnn
  166. math

    how many cups of butter is needed for 36 brownies?...if 2/3 cups is need for 16 brownies

    asked by Anonymous
  167. Physics

    A woman is standing on the middle of a ladder that leans up against a building, with an angle of 56 degrees from the ground. The wall is very slippery and the ladder is very light. What is the minimum coefficient of friction needed between the ground and

    asked by Sara
  168. 1950's Food

    For english im in a group that is doing a presentation on 1950 food. Were going to be making rice crispy treats and bringing them in since that was a popular dessert during the time. but we want to make it.. for lack of a better word, interesting. so does

    asked by Rebekah
  169. math-functions

    If y = x^2 + 5x - 9,for what values of x is y>5?

    asked by Sandhya
  170. Geometry

    Find the measure of each angle (x + 1) (4x - 56)

    asked by Ana
  171. Science

    A400watt light bulb is left on for 6.5hours. How many kilowatt hour of energy is used?

    asked by Alvida
  172. social studies

    i need to make a passport for marco polo and i need to put the stamps in from venice to china but i don't know the dates please help me

    asked by urgent please!!
  173. Chemistry

    What do you think cause H2O2 to decompose rapidly

    asked by Ton
  174. math

    Gillen has 30 vehicles, some are bicylces and some are cars. These vehicles have a total of 88 wheels. How many bicycles would there be?

    asked by Carrie
  175. english

    select the sentence that is punctuated correctly. The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties. The

    asked by angela
  176. Social Studies

    The term used in ancient China to describe the authority to rule coming from god is the _____of________?

    asked by HayleyH
  177. Chemistry

    I need the structural formulas for the organic compound trans 3,4,5-triethyl-2-octyene

    asked by Chris
  178. English - Native speakers

    Can you please correct these sentences(concerning grammar) We should reduce a politician salary. I hate to eat sweets because it is not good for my teeth. I am going to ban her computer games. I work only a few hours for a month. My salary is going to

    asked by Mark
  179. Math

    You deposit $10,000 at 5% per year. What is the balance at the end of one year if the interest paid is (a) simple interest (b) compounded monthly

    asked by MIKE.
  180. Math

    Could someone answer this question so I understand it. Thanks. Find the antiderivitive of the following derivitive that satisfies the given condition. dy/dx = 4x+4/3rd root of x y(1)=0 y(x)=

    asked by JL
  181. Physics

    a 800 gram ball at the end of a cord is whirled in an almost horizontal circle of radius 1.50 meters. its tangential speed in the circle is 10 meters per second. What must be the tension in the cord? What angle does the cord make with the horizontal?

    asked by Cole
  182. math

    of the 900 students 585 went to college what percent is that? a)150% b)65% c)90% d)58.5%

    asked by aly
  183. Jop Posting Help

    What would be some Pros and Cons about working at Baskin Robbins(icecream place)? All I know is that it would probably be fun, but really messy?

    asked by Anonymous
  184. chem

    If 25ml of bromine, a liquid element at room temp is added to 100ml of water, what would be the resulting molar concentration of bromine?

    asked by ALEX10
  185. goverment

    Explain how the relationship between the American colonists and Great Britain affected the development of the underlying principles and ideas in the Declaration of Independence and in new state constitutions

    asked by james
  186. chemistary

    what is the molarity (mol/L) of sodium (Na)in a solution containing 0.4 mole of Na+ cation in 400 mL of an aqueous (water)solution?

    asked by abdullahi
  187. Physics

    'N' small drop of same size are charge to 'V' volt each if they combine to form single large drop then what will be the realation between Qq,Vv,Rr?

    asked by Prajna parimita das
  188. Physics

    'N' small drop of same size are charge to 'V' volt each if they combine to form single large drop then what will be the realation between Qq,Vv,Rr?

    asked by Prajna parimita das
  189. algebra 2 and trig (math)

    Find the positive acute angle that satisfies the equation tan(squared) minus tan = 0.

    asked by joe
  190. probability

    a bag of 100 marbles contains 0 blue, 25 green, 25 mixed,and 20 clear. what is the probality of selecting a blue? ablue and green? a marble that is not clear? ablue on the first draw and a clearon the second draw? a

    asked by ryee
  191. Physics

    At a particular instant, a charged particle (+q) moves toward south at speed v in a uniform magnetic field that is directed toward you. The magnetic force that acts on it is

    asked by asif
  192. Physics

    a 1.75kg pistol lies at rest on an essentially frictionless bench. it accidentally fires and shoots a 25 gram bullet parallel to the bench. How far has the bullet moved by the time the gun has recoiled 2.60mm?

    asked by dave
  193. Statistics

    TRUE OR FALSE: For a set of data with mean 6 and variance 16, approximately 68% of the values will fall between -2 to 14.

    asked by Katie
  194. Chemistry

    What do you think cause H2O2 to decompose rapidly

    asked by Ton
  195. economic

    supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected.

    asked by maya
  196. gr10 science

    How could I write a general statement about how a chemical reaction might affect the total mass of reactants and products?

    asked by Rebecca
  197. Economics

    Hey! I'm doing an assignment in which I need to research a company (Qantas)and its performance on the ASX (Australian Securities Exchange). I know that some sources of information will be the Qantas website and the ASX website but are there any other

    asked by Gina
  198. chem

    Can you Identify the correct equilibrium constant, Keg, expression 2H2(g)+02(g)2H20(l)? a)Keg=1/(2(H2)(02)) b)Keg=(H20)2/((H2)2(02)) c)Keg=1/(H2)2(02)) d)Keg=(H2)2(02)

    asked by tracy
  199. english homework

    Hello! I have to write a dialogue with 3 characters, the subject is "hello doctor!" I probably make a doctor with a patient and the patient's mother, my idea consists of simulating (a lot of )illnesses in order to not to go to school (it's about the little

    asked by sophie
  200. math

    how to figure out ? % of 25=20 and 25% of ? = 7

    asked by eva
  201. GEOL12 (urgent)

    i have one simple question i need answering. Is the internal structure of a Composite, Cinder Cone, and Shield volcano are the same? please help and thank you

    asked by needhelp
  202. Physics

    You have a tiny slip of paper and a large rectangular wooden block. If you put both of them side-by-side and drop the two to the floor from the same height, the block gets to the floor first. Can you think of (and describe) three “simple” ways (using

    asked by Rob
  203. religion

    where can i find Jean Piaget theory on spiritual formation? thanks

    asked by olivia
  204. U.S History

    what was the leading cause of death in the civil war? what role did science and tenchnolgy play in the high deat tolls of this war?

    asked by Ace
  205. Algebra

    (12x + 5t)-(14t-6x) 12x + 5t - 14t -6x ( I get lost here when the -6x changes to +6. Same as this question: (5x + 2z)-(2x - 11z) Can anyone explain this to me? Thank you

    asked by tish
  206. English

    Hello. Please help me with grammar. 1)Which is better, one or a: "more than one third of Italy's population" or "more than a third of Italy's population"? 2)Are the phrases correct (meaning "the Italian population"): a third of the (?)Italian people; a

    asked by Ilma
  207. Maths/physics

    A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that each motion of P consists of either (i) a periodic oscillation between two extreme points, or (ii) an unbounded motion with one extreme point,

    asked by Hugo
  208. social studies

    hi i was wondering how long does it take to travel from venice to acre by ship like marco polo did??

    asked by elysha
  209. Math

    Suppose there are 500 pennies in a row... (math problem)? The pennies are all "heads up" Now suppose that 500 people line up and ... Person #1 turns over all the pennies Person #2 turns over every 2nd penny, starting with penny number 2 Person #3 turns

    asked by Nicki
  210. Science

    I would recommend to check out a website called physmatixsolve They helped me with a tough question i got in my Physics homework, classical mechanics. The amazing thing is that they really sent me the solution in less than 24 hours, which is pretty neat.

    asked by Dan
  211. Speechwriting

    Hi. How can I start a speech without saying goodmorning ladies and gentlemen? But not sound rude...

    asked by Gina
  212. History

    How have views on Chamberlain changed over time?

    asked by Ruth
  213. Phys-Help!

    Help please: You are looking north into a N/S coil that you observe to be carrying a clockwise current. A nuclear decay particle emitted due East within the coil (at the center) is instantaneously deflected verically upward. The decay particle is an: alpha

    asked by Jarod
  214. social studies

    what is the trade route from portugal to india known as

    asked by nichol
  215. chemistry

    40grams of sodium hydroxide was reacted with sulphuric acid to give 35grams sodium sulphate.calculate the percentage yield of sodium sulphate.

    asked by avril
  216. physics

    Consider a triangular pulse having a wave function (1)0()(1)00xNforbxbxxNforxbbforelsewhere a) Find N using the normalization condition. b) Find the expectation value of the position and the momentum.

    asked by qwer
  217. math

    how would you solve a problem where someone drinks 4 to 7 sodas per week. What is a reasonable number of sodas they will drink in 8 weeks?

    asked by Mattie
  218. science

    what is the equation for iron plus sulphur ?

    asked by Tumblah
  219. scientist

    how can u help me with terrestrial and aquATIC BIOMES

    asked by lg
  220. algebra

    The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.

    asked by Lisa
  221. chem

    What is the vol in L of 2 moles of molecular oxygen (O2) at STP?

    asked by ALEX7
  222. trigonametry

    cos6x+2cos^x=1

    asked by Hakim
  223. geology (very urgent)

    i have an assignment that i have to email back my friend on identifying minerals. simple enough the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn

    asked by needhelp
  224. math

    How long will it take a given quantity of carbon-14 to lose 99.9% of its radioactivity if the half life is 5730 years? The formula I have been given is Q=ae^rt This is using log and ln functions.

    asked by Niki
  225. math

    WHAT IS THE MEAN OF THE FOLLOWING SET OF THE NUMBERS 6,3,12

    asked by LEINSTER
  226. geology (urgent)

    when was Mauna Loa last eruption? please help and thanky you

    asked by needhelp
  227. Math

    Could someone work this question out so I understand it. Find the indefinite intregral (lnx)^7 / x dx Use C as the arbitrary constant.

    asked by Jules
  228. english

    How does a motif help portray the theme of a story?

    asked by Emma
  229. math

    The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.

    asked by sammy
  230. chemistry

    how many grams of aluminum are in 25.0 ml of a 14%(w/v) solution of Al2O3?

    asked by unk
  231. Math

    I am stuck on this question. Could someone work it out. Id appreciate it. Find the amount of A in an account after t years given the following conditions. dA/dt = 0.04A A(0) = 7000 A(t) =

    asked by JL
  232. social science

    a sociological theory concerned with the issues of who benefits from particularcsocial arrangements and how the powerful maintain their positions is known as:

    asked by precious
  233. Copyright

    Hey! Is it illegal under copyright law to record sections of a video so that you can use the quotes in an assignment about the video but then delete the sections after you've used them?

    asked by Gina
  234. math

    A florist uses wire frames to support flower arrangements displayed at weddings. Each frame is constructed from a wire length 9ft long that is cut into six pieces. the vertical edges of the frame consist of four of the pieces of wire that are each 12

    asked by Sarah
  235. chemistry

    Neutralization Reaction Molarity Calculations: For example: What is the molarity of a Ca(OH)2 solution if .032 L of the solution is exactly neutralized by .015 of a 0.56 M HCl? How do I solve- I am unsure where to begin.

    asked by Hannah
  236. vocab

    Directions: Use the underlined etymology clues to help you choose the correct word that is missing from each of the following sentences. 3. The [underlined](Middle English, from Old French boc, "male goat")[/underlined] had a physically demanding job. A.

    asked by Brad
  237. chemistry

    If a person were to drink 2L of water a day containing 100ppb Nickel for an entire lifetime (assume 72yrs) I took 100/1x10^-9 x 52596L=5.2596x10^-3? is this right?

    asked by chemdumby
  238. elementary statistics

    compute the variable of the random varible X

    asked by Anonymous
  239. physics ( help)

    Hypothetically, if you were standing on the balcony of an apartment on the 10th level of building and you throw a ball at 30° above the horizontal away from the building at 4.5m/s, how far from the building would the ball land?. The height from which the

    asked by H.T
  240. Com

    What is the rythem of the authors writing in the below paragraph? 3. Individuals can be denied credit for a number of reasons. Individuals who are near limits on existing cards, have too much outstanding debt or too many accounts overall, have a history of

    asked by Joseph
  241. Job Posting help..

    Hey Could I please know some cons and pros about working at Coopers(A grocery store)?

    asked by Anonymous
  242. Math. Please help!

    144/k=9 I don't understand how to do this using reciprocals, how my teacher wants me to solve the problem. Note: The fraction bar is in my paper, so it's 144 being the numerator, k being the denominator, and then =9 if that makes any sense.

    asked by Nicki
  243. Physics

    'N' small drop of same size are charge to 'V' volt each if they combine to form single large drop then what will be the realation between Qq,Vv,Rr?

    asked by Prajna parimita das
  244. English Comp.

    Define "integrated quotation"

    asked by Darla
  245. social studies

    marco polo traved from venice to china i need the aproxmately dates to each place he travelved frm venice to china i need the place and date please someone help

    asked by dody
  246. keyboarding and word process

    in a buisness report, what spacing should you use between lines?

    asked by james
  247. Physics

    An object is executing circular orbits of radius 0.5 m. If it completes an orbit every 3 seconds, what is its tangential speed?

    asked by Rob
  248. chemistry

    A ^232Th source is rated at 42 curies. How many thorium atoms disintegrate in 10 minutes?

    asked by Eddy
  249. Statistics

    Simple regression Set up a general model and what assumptions are there?

    asked by Pipi
  250. Physics

    what is the correct equation to use to find the velocity of the center of mass of a cylinder after it rolls down a hill

    asked by Anonymous
  251. physical science

    6. Draw a model of the atom shown in the atomic box below. Be sure to place all the protons, and neutrons in the correct location.

    asked by Chandresh
  252. math

    HI I need help with mixed numbers! I used to know how to do them. but now I fogot!I was in sping break so yeah.please help what should i do!

    asked by amanda
  253. Earth Science

    My experiment was to measure the float of a tongue depressor down a river. The mins it took the tongue depressor to float from point A to B and the depth of the river on those days. The meter represnt how depth/wide that point of the river was on that day.

    asked by George
  254. biology

    in mushrooms,the basisia are found on the

    asked by jdhjgffgk
  255. algebra

    y = -x2 - 4x + 4

    asked by Chris
  256. Math

    15/40 - ?=1/5 my is 7/40 15/40-7/40=8/40=1/5

    asked by Denise
  257. Science / math

    I have data on ATPase activity of two types of muscle at different concentrations of Ca 2+ and although the leg muscle seems to be more responsive than the flight i have to prove this statistically I don't know whether my data is paired or not. I think

    asked by Isabel
  258. Physics

    Let's say I put a very hot 100o C, 41 g cube of aluminum in 71 ml water at room temperature (20o C). What is the temperature of the water after equilibrium occurs

    asked by sonia
  259. Algebra 2

    i need help, step by step, in solving for fractional coefficients. can someone walk me through?

    asked by Liam
  260. chem

    @ 46degress C a 1L sample of ammonia gas has a prssure of 5.3 atm. what is the pressure in atm on the sample when the volume is reduced to 100ml with no temp change?

    asked by help
  261. English - Native speakers

    Is it correct to say Is he at work now or Is he now at work?

    asked by Mark
  262. Algebra

    find the length of a rectangle of 14.8 square inches if the width is 7 inches

    asked by Malcolm
  263. English

    Hello. Please check the structures: He and his wife didn't have bank accounts. He or his wife didn't have... Both he and his wife didn't have... Neither he nor his wife had ... THANK YOU FOR HELP.

    asked by Ilma
  264. chemistry

    if atoms give off light, why don't they glow?

    asked by juan777
  265. Goverment

    Who runs the national goverment?

    asked by Olive
  266. american history

    under the system,spanish conquistadores were rewarded with local villages and control over the local labor force

    asked by Anonymous
  267. Stats - Please help

    I have data on ATPase activity of two types of muscle at different concentrations of Ca 2+ and although the leg muscle seems to be more responsive than the flight i have to prove this statistically I don't know whether my data is paired or not. I think

    asked by Isabel
  268. Chemistry

    A 1.56L sample of Neon gas at STP is heated to 100C, what is the final pressure assuming the volume stays the same?

    asked by Terrie
  269. Chemistry

    Functional groups 1. are the repeating unit of polymers. 2. are groups of atoms whose chemical prop- erties are pretty much independent of their chemical environment. 3. perform specific biological functions using molecular recognition. 4. are a fictitious

    asked by Will
  270. math

    Find the five-number summary of the following set of numbers. 341, 233, 181, 368, 247, 551, 286, 223, 313

    asked by math illerate
  271. math

    Automobiles and small trucks account for 84% of the travel to and from work in the United States. What fraction represents all other means of travel to and from work in the United States?

    asked by math illerate
  272. social studies

    want to find some essays or articlrs pertaining to the problems that developed due to the weakness of the Article of the Confederation

    asked by Jason
  273. math

    Im confused please help me!:

    asked by amanda
  274. calc

    If f(x)= (3x)^(3x), then f'(x) = ? Thank you!

    asked by Erica
  275. PHYS

    Help! Initially there are 6x10^9 radioactive of element W (decay constant 0.173/day) in a sample. As a nucleus of W decays, it converts 2.67x10^-28 kg of its mass to energy and releases the energy. How much time (in days) is required for the sample to

    asked by Jenn
  276. math

    Not sure how to go about this? If I multiply x by .95, I've decreased it by _______%

    asked by lofo
  277. History

    how trading helped sparta economy?

    asked by Jay
  278. geology (urgent)

    i have one simple question i need answering. Is the internal structure of a Composite, Cinder Cone, and Shield volcano are the same? please help and thank you

    asked by needhelp
  279. math

    1.)Name the property that is illustrated. a) 7 „e 6 ƒ­ 6 „e 7 b) 7 ƒy (1 ƒy 9) ƒ­ (7 ƒyƒn1) ƒy 9 2.) a) Identify the base in the following statement b) Solve for the amount. What is 81% of 285? 3.)a) Find the supplement of „£A. b) Find the

    asked by Sammy
  280. american history

    what did the fugitive slave acts specify?

    asked by evan
  281. american history

    before departing for what would be of plymuth colony, the sroby separtists first lived for a time in

    asked by Anonymous
  282. Social Studies(child Labor)

    i found this poltical cartoon why is this fat man eating kids i think because the fat man is just taking the kids rights and the fat man is making them work is this correct???

    asked by macy
  283. pre-cal

    what is the vertex and directrix of the parabola y=-1/2x^2 + 10 - 46

    asked by sonia
  284. social studies

    how long does it take from acre to tabriz by ship?? like marco polo??

    asked by urgent please!!
  285. nalya sec sch

    do people accomplish more to do things in thiere own way

    asked by ivan
  286. calculus

    d^2/dx^2(q(x))-5*(d/dx(q(x)))+6*q(x)=0

    asked by Anonymous
  287. Computer Science

    Cell formulas are usually displayed in the cell, while the contents are displayed in the name box T or F ??

    asked by Stephen
  288. Pharmacology

    What type of name is Nyquil? A. Generic B. Official C. Trade D. Chemical

    asked by Anonymous
  289. Pharmacology

    What type of name is Nyquil? A. Generic B. Official C. Trade D. Chemical

    asked by Anonymous
  290. physics

    what are the two forces that affect the motion of a child as she comes down a slide?

    asked by Anonymous
  291. math

    First find the general derivative of f (x) = {√(x−1)} . Then find the equation of the tangent line to the graph at x = 10.

    asked by billy
  292. Math

    To travel to Mrs. Shutt's parents house,she traveled 320 miles in 5.5 hours. What is average speed?

    asked by Ally
  293. Law

    looking to ascertain what the liquid volume of 5 gallons of acetic anhydride is in pounds.

    asked by kevin
  294. Language Arts

    Relation between the words read and watch

    asked by Jonathan
  295. math

    at the end of five days i saved 30$. if each day i saved 2$ mre then the day before, how much money did i save?

    asked by amanda
  296. English

    Please help me to jumble this word: UIDNVSEH and it should b a loving word.

    asked by Mona
  297. psychology

    Susan Sharp is a 35year old lady who has recently been diagnosed with diabetes.She is overweight and smokes.She is aware that she does not have a healthy lifestyle but finds it hard to resist fast foods and alcohol.She is a single parent of two young

    asked by Nancy
  298. Math

    X+4+2x+4+x+4+5x-2=64

    asked by Anonymous
  299. math

    to make 16 browns you need: 1 cup butter 6ounces of chocolate 2 cups of sugar 2 1/2 teaspoon vanilla 4 eggs 1/2 cup of flour so how much butter, chocolate, sugar,vanilla, eggs and flour is need to make 24 browns?

    asked by Anonymous
  300. science

    how does a friction help us to stay upright on an icy morning

    asked by emilin
  301. Pre-Algebra

    What is a-3/5=1/5 ?

    asked by Sophia
  302. world geography 1A SAISD

    which of the following is an example of cultaral assimiltion?

    asked by desiree
  303. guided practice

    can the lenghths 12 cm, 13 cm, and 18 cm make a right triangle ? justify your answer

    asked by henry
  304. math

    how do you solve 5k-3=negative13

    asked by kali
  305. math

    4(x) + pi(x)=60 how do i solve this?

    asked by Sarah
  306. bowie

    answer to 5(2x-3) 8=9 in a fraction

    asked by melissa
  307. math

    -8 x 7 = ?

    asked by cassandra