Questions Asked on
December 1, 2010

  1. math

    1. You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00. If a savings account earns 4.5% APR interest, how much do you really save with a refurbished computer if you put the

    asked by Donnie
  2. chemistry

    2. A 350 mL buffer solution containing 0.15 M HF and 0.150 M NaF is reacted with sodium hydroxide. What mass of NaOH can this buffer neutralize before the pH rises above 4.0? If the same volume of buffer was 0.35 M in HF and 0.35 M in NaF then what mass of

    asked by help
  3. social studies

    what ar all the anwsers to florida studies weekly on week 13

    asked by daniel
  4. honors physics

    A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of this spring/mass sytem is 2.1 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by

    asked by tom
  5. english

    at the end of chapter IV, Frankenstein pauses to moralize. What does he say about passion and how a person should deal with it?

    asked by amanda
  6. physics

    racing on a flat track, a car going 32 m/s rounds a curve 56m in radius. what is the car's centripetal acceleration?

    asked by john
  7. Chemistry

    the bond between which pair of elements is the least ionic in character ? (1) H-F (2)H-Cl (3) H-I (4) H-O please help

    asked by Anonymous
  8. chemistry

    What is the bond order of the C-O bond in acetone? a). 4 b). 1.5 c). 0.5 d). 1 e). 2

    asked by gopi
  9. Finance

    Fletcher Company's current stock price is $36.000, its last dividend was $2.40, and its required rate of return is 12%. If divends are expected to grow at a constant rate, g, in the future and if Rs is expected to remain at 12%, what is Fletcher's expected

    asked by Jessy
  10. Chemistry

    Please show me the steps..... At STP, 3.00 L of nitrogen gas contains the same number of molecules as A) 1.00 L of nitrogen gas B) 2.00 L of oxygen gas C) 3.00 L of chlorine gas D) 4.00 L of hydrogen gas

    asked by Kiesha
  11. pre calculus

    A parallelogram has a 70 degree angle and sides 6 cm and 10 cm long. How long are its diagonals?

    asked by lelelelel
  12. 6th grade

    Of the sixth-grade students surveyed, 12% bring their lunches to school. Suppose 24 sixth-graders do this? How many sixth-grade are at the school?

    asked by Anonymous
  13. chemistry help!

    A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?

    asked by samantha
  14. Calculus

    Suppose that the machinery in question costs $104000 and earns profit at a continuous rate of $69000 per year. Use an interest rate of 9% per year, compounded continuously. When is the present value of the profit equal to the cost of the machinery? Round

    asked by Erika
  15. chemistry

    How do I draw the lewis structure for [PF5Cl]- i'm getting confused on this one!! Please explain answer Thanks =))

    asked by Stacy
  16. Chemistry

    Draw the resonance structures for SeS2 and SiS2. There are 2 for SeS2 and 3 for SiS2. I really need help with this. If it can be explain with words, since pictures would be hard. Thanks!

    asked by Alexis
  17. Calculas

    A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the bow of the boat at a point 10 ft below the pulley. If the rope is pulled through the pulley at a rate of 20 ft/min, at what rate will the boat be

    asked by Jimmy Larson
  18. Chemistry

    Two solid objects, A and B, are placed in boiling water and allowed to come to temperature there. Each is then lifted out and placed in separate beakers containing 1000 g water at 10.0 degrees Celsius. Object A increases the water temperature by 3.50

    asked by Samantha
  19. Chemistry

    Calculate the amount of heat (in kJ) required to convert 87.5 g of water to steam at 100°C. (The molar heat of vaporizaion of water is 40.79 kJ/mol.)

    asked by MC
  20. Physics

    A golfer hits a golf ball at an angle of 35° above horizontal. If the initial velocity is 55 m/s, how long does the ball soar before it hits the ground?

    asked by Elaina
  21. Chemistry

    0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.

    asked by Susie
  22. Chemistry

    A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. HCl +H20 Balanced

    asked by Susie
  23. Finance

    You are evaluating a proposed expansion of an existing subsidiary located in Switzerland. The cost of the expansion would be SF 32.4 million. The cash flows from the project would be SF 9 million per year for the next five years. The dollar required return

    asked by James
  24. college

    At the center of a 50 m diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s collides with and holds onto a 60 kg skater who had been heading west at 3.5 m/s. How long will it take them to get to the edge of the rink. Where will the reach

    asked by charlotte
  25. Physics

    The pistons in an internal combustion engine undergo a motion that is approximately simple harmonic. If the amplitude of motion is 3.8cm , and the engine runs at 1500rpm , find the maximum acceleration of the pistons. Find their maximum speed.

    asked by Phy help!
  26. Chemistry

    In the determination of melting points, why cant you use water instead of mineral oil?

    asked by Ash
  27. stats

    You are given the following information obtained from a random sample of 4 observations. 25 47 32 56 At a .05 level of significance, determine whether or not the mean of the population from which this sample was taken is significantly different from 48.

    asked by sara
  28. physics

    An equilateral triangle 10.0m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass at the third corner. Find the magnitude of the net force acting on the 1.00-kg mass. Find the direction of the net force acting

    asked by Phy help!
  29. physics

    Two gerbils run in place with a linear speed of 0.60m/s on an exercise wheel that is shaped like a hoop.Find the angular momentum of the system if each gerbil has a mass of 0.22kg and the exercise wheel has a radius of 8.5 cm and a mass of 5.0 g.

    asked by Anonymous
  30. Physics: Simple Harmonic Motion

    A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical

    asked by Greg
  31. Chemistry

    Is hydrogen bonding strongest between molecules of H20 H2S H2Se or H2Te?

    asked by Anonymous
  32. Chemistry

    which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen? (1) carbon (2)nitrogen (3)oxygen (4) fluorine

    asked by Anonymous
  33. trig

    Find the sign of the expression if the terminal point determined by t is in the given quadrant. cos t X sec t in any given quadrant

    asked by Katie
  34. physics

    A uniform 1.3-kg rod that is 0.80 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring

    asked by sammie
  35. Calculus

    Redo problem 8 in section 6.3 of your textbook (page 288) assuming that the parents need $105000 in 9 years for college expenses, and that the bank account earns 9.25% compounded continuously. Round your answers to the nearest cent. (You may need to

    asked by Brooke
  36. Chemistry

    What mass of KCl is dissolved in 250. mL of a solution that is 4.00 % by mass/volume?

    asked by Kiesha
  37. Math

    The tides at cape Capstan, New Brunswick, change the depth of the water in the harbour. On one day in october, the tides have a high point of approximately 8m at 2 p.m and a low point of approximately 0.6m at 8 p.m. A particular sailboat has a draft of 2m.

    asked by Anonymous
  38. math

    justine has 162 red buttons,98 blue buttons,and 284 green buttons. she says she knows she has more than 500 buttons without adding.do you agree? explain.

    asked by esha
  39. math

    Your brother traveled 117 miles in 2.25 hours to come home for Christmas. What's the average speed that he was traveling?

    asked by anna
  40. physics

    Two blocks are connected by a massless rope that passes over a pulley. M1= 2 kg and M2= 4 kg. The pulley is 12cm in diameter and has a mass of 2kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.5 Nm. if the blocks are released

    asked by Blanche
  41. physics

    A 39.0kg child runs with a speed of 2.70m/s tangential to the rim of a stationary merry-go-round . The merry-go-round has a moment of inertia of 506 kg m^2 and a radius of 2.51m . When the child jumps onto the merry-go-round, the entire system begins to

    asked by ree
  42. physics

    a positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread. after being charged once. the plates are disconnected from the battery. describe the behavior of the ball. (the plates are not touching

    asked by maria
  43. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

    asked by Kevin
  44. Calculus

    assuming that you wish to have $19000 in 7 years and that the account earns 6% compounded continuously. Round your answer to the nearest cent. Answer:

    asked by Brooke
  45. Phys help!!!!

    A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board,the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far

    asked by ree
  46. chemistry

    An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong? transition metals Halogens alkaline earth metals alkaline metal

    asked by Kristy
  47. Calculus

    Company QRS generated a net profit between 1992 and 1997 at a rate approximated by 20 t + 264.5 million dollars per year, where t is the time in years since 1992. Find the value, in 1992, of QRS's net profit over the 5-year period from 1992 to 1997. Assume

    asked by Brooke
  48. chemistry

    I completely understand Le Chateliers principle but I have no idea about these questions. They're due tomorrow so fast help would be appreciated. Why did adding water to the equilibrium involving CoCl_4_^2-^ cause the color to change? Use Le Chateliers

    asked by k
  49. physics

    Two 6.7kg bowling balls, each with a radius of 0.14m , are in contact with one another.What is the gravitational attraction between the bowling balls?

    asked by ginny
  50. PreCalc

    The total electrical resistance R of two resistors connected in parallel with resistances R1 and R2 is given by 1/R=1/R1+1/R2. One resistor has a resistance of 2.3 ohms. Let x be the resistance of the second resistor. Express the total resistance R as a

    asked by Linda
  51. MATH HOMEWORK

    Find the circle circumference and circle area with a circles radius 10 inches I think the circles are is 314 but don't know the circumference.

    asked by Nat
  52. maths

    find the difference between the greatest and least value of function cos x+1/2cos2x-1/3cos3x

    asked by mathmagic
  53. Geometry

    A tire has a diameter of 30 cm. How far does it travel in 5 revolutions? Use 3.14 for π(pi).

    asked by Myung
  54. AP Chemistry

    what is the number of moles of HCl in 50mL of 1.0M HCl

    asked by Sam
  55. Math

    Six cards numbered 1 through 6 are placed in a hat. One card is taken from the hat. The unit's digit of the sum of the numbers on the remaining cards are 9. What was the number on the card taken from the hat?

    asked by Martha
  56. physics

    An EF 151 GTA sits on the EF stool and rotates CCW with an initial speed of 60 rpm. After 28 revolutions he stops. Assuming constant acceleration, how long was he rotating?

    asked by sandhu
  57. Trigonometry

    A pilot is flying at 200 miles per hour (airspeed), and wants his flight path (course or actual direction) to be on a bearing of 237 degrees. A wind is blowing for the north at 40 miles per hour. Find the bearing he should fly, and find the plane's ground

    asked by Monk
  58. Chemistry

    Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3- (aq) but that's not right. then for the Ksp expression i thought it was [Mn^2+]

    asked by Jake
  59. Finance

    If you bought a share of common stock, you would probably expect to receive dividends plus an eventually capital gain. Would the distribution between the dividend yield and the capital gains yield be influenced by the firm's decision to pay more dividends

    asked by Jessy
  60. statistics

    According to a survey, only 15% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected. a) What proportion of the samples will have less than 15% of customers who will make a purchase after

    asked by Brodice
  61. Physics

    17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil? 18. A bomb having a mass of 8kg explodes into two

    asked by James Caulfield
  62. Physics

    Latent heat question: Your car's windshield is covered with a .58 cm thick layer of ice. The ice has an area of 1.6m^2. If the temperature of the ice is -2C, how much heat is required to melt all the ice?

    asked by Anonymous
  63. 5th grade

    For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?

    asked by Danielle
  64. Physics

    A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver

    asked by ree
  65. physics

    the negative charge distribution over the surface of two isolated spheres is depicted in the diagram. one of the spheres is made of copper and the other is of rubber. identify the sphere that depicts the charge distribution of copper and that of rubber.

    asked by maria
  66. physics

    a 150 grain .30-06 bullet has a mass of 0.01 kg and a muzzle velocity of 900 m/s. If it takes 1 ms(millisecond) to travel down the barrel, what is the average force acting on the bullet?

    asked by jc
  67. physics problem ???

    A projectile is ejected from a 25-m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars. What is the ratio of the time taken to hit the ground on Mars compared to Earth?? (Assume gravity of mars=

    asked by mK
  68. Grammar

    For each sentence write the action verb. Then write and circle each direct oblect. 1.Thornton Wilder used unconventional forms in his plays. used action, forms direct object 2. For eample, any producton of Our Town requires very few props. requires action,

    asked by TiffanyJ
  69. chemistry

    An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong? transition metals Halogens alkaline earth metals alkaline metal

    asked by Alexa
  70. 9th grade

    what is it called when chemicals that influence the way that neurons communicate communicate with each other

    asked by m
  71. algebra

    Find two possible numbers that differ by 8 and whose reciprocals differ by 1/6.

    asked by Keith
  72. College Physics

    An ambulance is approaching at 80 mph (35.8 m/s). If the siren produces a continuous 400 Hz tone, what frequency do you hear? Assume the speed of sound to be 340 m/s.

    asked by Traci
  73. Geometry

    Find the area (in square centimeters) of a triangular piece of cloth with a 14-centimeter base and an 18-centimeter height.

    asked by Myung
  74. College Algebra

    Only 27% of the carbon-14 in a wooden bowl remains. How old is the bowl? (Carbon-14 has a half-life of 5,700 years.)

    asked by Laura Hieb
  75. Math

    While spending 10 weeks at a university in Germany, Ayesha frequently had dinner with 5 of her classmates: Jack, Erik, Annalee, Peter, and Nola. She ate dinner with each of these classmates exactly 12 times. She ate dinner with every pair of them eight

    asked by Amy
  76. calculus

    what is the area of the region bounded by the curves y=x^2 , y=8-x^2 , 4x-y+12=0

    asked by nicko
  77. Math

    The population size, P, of owls (predators) in a certain region can be modelled by the function P(t) = 1000 + 100 sin (3.14t/12), where t represents the time in months. The population size, p, of mice (prey) in the same region is given by p(t) = 20 000 +

    asked by Molly
  78. chemistry

    For each of the following solutions, calculate the initial pH and the final pH after adding 0.010 mol of HCℓ. a) 500.0 mL of pure water i'm not sure how to do this question.. would the equation be h20+h30 equilibrium arrows h30+h20

    asked by help
  79. physics

    The cabin noise level of the new Airbus 380 is 5 decibels lower than that of a 747 Jumbo Jet. By what factor does the noise intensity decrease?

    asked by john
  80. physics

    It has been suggested that rotating cylinders about 10 mi long and 4.9 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall

    asked by kaitlyn
  81. chemistry

    how Many grams of copper(11) acetate monohydrate will you ned to prepare 10 mL of a 0.01 M solution?

    asked by ken
  82. Precalculus

    An observer 2 km from the launching pad observes a vertically ascending missile at an angle of elevation of 21 degrees. 5 seconds later the nagle has increased to 35 degrees. What was its average speed during this interval? If it keeps going vertically at

    asked by Harchit
  83. Chemistry

    Write the cell notation for the reaction below. Show your work. Cu+2(aq) + 2Ag(s) + 2Cl-(aq) --> Cu(s) + 2AgCl(s)

    asked by Tomas
  84. 7th grade Science

    will an object with a density of 0.79g/mL float, sink, or remain suspended in water

    asked by Aaliyah
  85. Physics

    FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at

    asked by Schnitzel
  86. physics/chem

    what is the relationship between density and specific heat capacity? and why? i thought when density increase specific heat increase but it says that it is inversely proportional. thank you

    asked by lizzy
  87. Finance

    Carborundum Metals issues commercial paper with a face value of $1,000,000 and a maturity of three months. Carborundum receives net proceeds of $992,000 when it sells the paper. If the prime rate is 8% APR compounded quarterly, how much savings in interest

    asked by KEVIN
  88. Chemistry

    Write the word equations below as chemical equations and balance. copper + sulfuric acid yield copper(II) sulfate+ water + sulfur dioxide

    asked by Pedro
  89. comm155

    help me write a paragraph, using several sentences, to describe a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. Use at least five different pronouns in your sentences.

    asked by queen
  90. geometry

    Some irragation spray water in a circular pattern. you can adjust the nozzle to spray in certain directions. the nozzle in my diagram is set so it does not spray on the house. if the spray has a radius of 12 feet what is the approximate length of the arc

    asked by Key
  91. algebra

    A car generally depreciates 25% of its original value in the first year. A car is worth $27000 after the first year. What was its original cost?

    asked by JESSICA
  92. physics

    A 250 kg car starting from rest is pushed 30m. When the car reaches 30m, it’s traveling at a speed of 12m/s and it encounters 52N of friction. What is the acceleration of the car and what is the force of the push on the car?

    asked by Alyssa
  93. Chemistry

    when a calcium atom loses its valence electrons, the ion formed has an electron configuration that is the same as an atom of (1) Cl (2) Ar (3) K (4) Sc i think its 2 am i right ?

    asked by Anonymous
  94. stat

    1. The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with = 110 grams and = 25 grams. A sample of 25 vitamins is to be selected. So, 95% of all sample means will be greater than how many grams?

    asked by Anonymous
  95. Chemistry

    If you add acid or base to water how will the pH change.

    asked by Ted
  96. chemistry

    complete and balance the following equation: CoCl*6H2O+ NH4Cl+ NH3+ H2O ---> [Co(NH3)5Cl]Cl2+ H2O

    asked by anon
  97. linear algebra

    3. Suppose A is symmetric positive definite and Q is an orthogonal matrix (square with orthonormal columns). True or false (with a reason or counterexample)? a) (Q^(T))AQ is a diagonal matrix b) (Q^(T))AQ is a symmetric positive definite matrix c)

    asked by michael
  98. business

    who are the relevant market and nonmarket stakeholders in the cisco in the coyote valley case study

    asked by moe
  99. Physics

    I NEED HELP! Already answered on here but does not make sense/work. Please HELP! A 2.7 kg balloon is filled with helium ( density = 0.179 kg/m^3). If the balloon is a sphere with a radius of 5.2m , what is the maximum weight it can lift?

    asked by Kristy
  100. 6th grade,social studies

    How do patterns of economic activities result in global interdependence?

    asked by kristie(mom)
  101. physics

    a current-carrying wire is oriented at right angles to a uniform magnetic field. if the lenght of the wire is 0.50m and it experiences a force at 0.90n while carrying a current of 4.0a. what is the strength of the magnetic field?

    asked by mj
  102. Math PLEASE HELP

    Please finish these questions so I can check my answers. All my answers are at the bottom. Adding and subtracting mixed numbers. Please finish these questions. The answer must be reduced to lowest terms! 1. 3 2/5 + 6 1/5= 2. 4 2/5 + 1/10= 3. 2 3/12 + 2

    asked by Pratigya
  103. Chemistry

    How many grams of NaBr are contained in 85.0 mL of a 2.10 M NaBr solution? I'm not sure how to go about this..

    asked by Roxie
  104. US history

    What propelled Grant to Presidential victory in the 1868 election?

    asked by sara
  105. text structure

    People have used various methods to measure the depth of the ocean. Long ago sailors lowered a rope over the side of the ship. When the rope touched the bottom,they knew how deep the water was. Today scientists measure the depth of the water with an echo

    asked by priscilla
  106. Chemistry

    One of the most obvious ways to tell that a chemical reaction has occurred, as we all know, is that the color of 'stuff' changes. Ligand exchange reactions are one class of reactions where this is very evident, as exemplified by the color change of a green

    asked by Stephanie
  107. Science

    When the body becomes too warm blood vessels in the skin become _____?

    asked by Ashley
  108. Physics- HELP

    How to find average speed with a given initial speed, theta, and delta x? I know average speed= total distance/total time, but I am given an initial speed, an angle and delta x. Mark throws a ball to Daniel with an initial speed of 20 m/s at an angle of 45

    asked by Amm
  109. Finance

    Crimini Foods is offered a $400,000 line of credit for six months at an APR of 10%. This loan has a loan origination fee of 2%. What is the actual six-month interest rate paid, expressed as an EAR

    asked by KEVIN
  110. chemistry class

    i have a Chemistry lab (level 2) final exam soon. our teacher told us that we would have % transmittance problems, can someone show me an examples (maybe from an online test) or a made up one, of what i might expect to find on my chemistry lab final? like

    asked by jes
  111. 8th grade science

    A 1 kg ball moving at 3 m/s strikes a 2 kg ball and stops. If the 2kg ball was initially at rest, find its top speed after the collision

    asked by tressie
  112. Statistics-- help needed despertaly!!!!!!

    McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and not-so-attractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between

    asked by Mandy
  113. English

    1.The varsity team will play as soon as the junior varsity is finished. 2.Thirty laps is the most that I have ever swum. 3.My sister was going to take me to dinner, but her car wouldn't start. Identify each independent clause in each sentence and each

    asked by Hayden
  114. arithmetic

    sandra has eight coins which total 0.87. what coins does she have. [hint:make a chart or a list]

    asked by cindy
  115. Precalculus

    The weather bureau reports that a cold front has just passed Austin and is heading toward San Antonio at 42kph. Since you know that Antonio is 126 km from Austin, you first think you have 126/42=3 hours before the front arrives there. However, you realize

    asked by Kelly
  116. Chemistry multiple choice

    During today’s experiment we will produce hydrogen gas (H2) using zinc metal (Zn(s)) and hydrochloric acid (HCl). Which is a balanced net ionic equation illustrating this process? A. Zn (s) + 2 HCl (aq) --> Zn2+ (aq) + H2 (g) + 2 Cl- (aq) B. Zn (s) + 2

    asked by Nana
  117. chemistry

    The environmental protection agency (EPA) wanted to study the particular materials in the atmosphere in Bogus Basin at 7200 ft elevation. The sampled air rate was at 1.00 liter per minute and was allowed to run 24 hours per day for 30 days. At the end of

    asked by jo
  118. adult education

    describe why it is important to consider each domain in the study of adult development,

    asked by Anonymous
  119. algebra

    use a calculator to approximate the square root of 320, round to three decimal places.

    asked by john
  120. Geometry

    Find the area (in square centimeters) of a triangular piece of cloth with a 14-centimeter base and an 18-centimeter height.

    asked by Myung
  121. business

    Write a 200- to 300-word description of a business scenario, either real or fictional, that depicts each of the following forms of business organization: o Joint-stock company o Limited liability company o Partnership o Sole proprietorship

    asked by jim
  122. chemistry

    Write the orbital diagrams for the following atoms/ions. Label the orbitals. You can use gas notation for Sr2+, Zn and Se2-. Sr2+ Se2-

    asked by Riley
  123. Finance

    Gemini Real Estate is offered a $2 million line of credit for four months at an APR of 9%. This loan has a loan origination fee of 1.5%. What is the actual four-month interest rate paid, expressed as an EAR

    asked by KEVIN
  124. Math

    Let h represent the number of hours Shaunda spent on homework last week. 1.Zach spent half as much time on his homework as shaunda had on hers.Write an expression for the number of hours he spent.

    asked by ursula
  125. geometry

    in a rhombus PQRS PQ=y+8, QS=4y-7.Find PQ

    asked by joey
  126. Chemistry

    How will the boiling point of a substance be affected by increasing the atmospheric pressure? How will the boiling point of a substance be affected by decreasing the atmospheric pressure?

    asked by Ash
  127. Chemistry

    you were asked to determine the melting point of an unknown compound in order to identify at as one of the compounds you had previously examined. What else could you have done to make sure that your unknown was indeed the compound you believed it to be,

    asked by Ash
  128. math

    use each digit from 1 to 9 to make each line sum to 15. use each digit once

    asked by cindy
  129. Physics

    I have a question about the International Space Station-Its been orbiting earth at 350km-If the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new

    asked by Julie
  130. statistics

    A newspaper survey found that 65% of readers found online tutorials useful. If a random sample of 9 readers is selected, compute the standard deviation of the probability distribution.

    asked by me
  131. Calculus 2

    A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's

    asked by Billy
  132. chemisty

    A nitric acid solution is neutralized using sodium hydroxide. How many grams of sodium hydroxide are needed to neutralize 5.50 L of 1.200 M nitric acid solution? HNO3 (aq) + NaOH (aq) → H2O (l) + NaNO3 (aq)

    asked by silent
  133. chemistry

    what is the pH of an 0.155M aqueous solution of acetic acid if the Ka is 1.8 EE -5?

    asked by Anonymous
  134. Geometry

    You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?

    asked by Myung
  135. algebra

    If y=35+0.8x gives the distance of the sports car from Flint after x minutes. find the following a. How far is the sports car from Flint after 25 minutes? b.How long will it take until the sports car is 75 miles from Flint? Show how to find the solution

    asked by confused and need an answer.
  136. science

    if 8 g of vinegar is added to baking soda to form 24 g of c02 and other products, how much baking soda did you need?

    asked by joe
  137. Math

    If a shopkeeper sold 15 boxes of pencils on Mon and Tues. He sold 3 more boxes on Mon then on Tues. There were 12 pencils in each box. How many pencils did he sell on Monday.

    asked by Kelsey
  138. Math

    I need SUPER help! A famer has to buy 100 animals, but can only spend exactly $5.00. He has to buy at least on of each animal a chcken for 0.01$, a cow for 0.10$ and a horse for 0.50$!!!! PLease HElp IT means so much I need it by Midnight tonight or else i

    asked by lia mowin
  139. Chemistry

    Can anyone just show me the steps and point me in the right direction??? A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?

    asked by Anonymous
  140. physics

    17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil? 18. A bomb having a mass of 8kg explodes into two

    asked by James Caulfield
  141. PHYSICS!!!

    By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

    asked by Molly
  142. english

    how can i interprete this quote: "fear always springs from ignorance" by: ralph waldo emerson

    asked by bia
  143. Religon and global culture

    I have to write an essay by completing this sentence: "In the current global culture, religion should..." And since I have to write a lot, I thought I'd start out by making points of what I feel about religion in today's world. It is of vital importance Is

    asked by yfaridi1
  144. Pre-Calcs

    Amount after time t A (t) = yobt Where: yo = starting amount b = growth constant (percent remaining) t = number of time units In the 1978 the population of blue whale in the southern hemisphere was thought to number 5000. Since whaling has been outlawed,

    asked by Kate
  145. calc2

    A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's

    asked by william
  146. Chemistry

    Select the options below that are correct for diamagnetism and paramagnetism. A) Most elements and some compounds are paramagnetic. B) Individual magnetic moments in paramagnetic substances cancel each other. C) Diamagnetism is observed as repulsion in a

    asked by Angeleque
  147. math

    why the formula for the area of a trapezoid this A=1/2 x h x(a+b)

    asked by kate
  148. algebra

    Sammy can complete a programming job in 8 hours if he works alone. Marilyn can complete the same programming job in 12 hours if she works alone. If Sammy and Marilyn work together, how many hours and minutes will they complete the job

    asked by ann caples
  149. English

    Can you please check the following senteces for me? Thank you very much 1) Give a brief description of the monster as referred to (?) by Dr Frankenstein to in Chapter 5 of Mary Shelley's Frankenstein. Explain then what the monster stands for and what

    asked by Franco
  150. Calculus

    using the following information in place of that in the book. The machine earns the company revenue at a continuous rate of 50000 t + 35000 dollars per year during the first six months of operation, and at the continuous rate of $60000 per year after the

    asked by Erika
  151. EXP105: Personal Dimensions of Education (ABA1047G

    Identify at least two skills that you that you would like to improve. Provide details on what actions you will do to develop each skill. Who do you consider to be a part of your personal support system? How do they offer support and encouragement to you?

    asked by justin
  152. English 12 U

    Please ignore my previous post, I accidentally posted my rough draft Okay for English 12 U, I'm doing a literary essay for Life of Pi, by Yann Martel. The topic of my essay is Martel (author's) depiction of setting in Canada and India. (Role of setting)

    asked by Andy
  153. chem

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

    asked by nicki
  154. English(how is it?)

    Should there be abolishment of the 12th grade? To some this may sound like a good idea in theory. But there could be too many complications that come along as well. Some feel as if the 12th grade should be abolished in favor of job training. As well as

    asked by Sarah
  155. physics

    Posted by sandhu on Tuesday, November 30, 2010 at 7:38pm. Posted by sandhu on Tuesday, November 30, 2010 at 1:17am. A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point

    asked by sandhu
  156. Chemistry

    If a student working on the upcoming experiment fully ionizes 2.80 g of Zn(s) in an excess of aqueous HCl, how many moles of H2 (g) will be produced?

    asked by Nana
  157. math

    use each digit from 1 to 9 to make each line sum to 15. se each digit once.

    asked by cindy
  158. Physics

    An object is attached to a horizontal spring. It is initially displaced by distance Δx from the equilibrium position and then released from rest. At what point of its motion along the x-axis reaches the object its highest total energy a) At the

    asked by Michael
  159. Physics

    A mass of 1 kg is hanging from a spring with a spring constant of 4 N/m. At a distance of 0.2 m above the equilibrium it has a velocity of 0.8 m/s in the downward direction. What is the amplitude of the oscillation?

    asked by Laura
  160. chem

    Calculate the number of moles of the indicated ion present in each of the following solutions. Na+ ion in 1.20 L of 0.183 M Na2SO4 solution = ?mol

    asked by shawn
  161. Algebra

    Solve: -10

    asked by Christina
  162. adult ed geometry

    Adult education due to the level -thanks - The distance between Sue and a dude ranch was 30 mi. straight across a rattlesnake-infested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked due east for a shorter leg of

    asked by antonne
  163. Physics

    An object has a mass of 0.3 kg. It undergoes a simple harmonic motion. The amplitude of that motion is 0.09 m and the period is 0.36 s. What is the total energy of the object? my answer: 4.11 J -period=1/f. - omega=2*pi*f=17.45 only kinetic energy

    asked by Michael
  164. math

    sue and bob earned 24.00 sue earned twice as much how much money did each earn?

    asked by quinn
  165. chemistry

    I need an edible suspension HELP!!! :o plz?? :)

    asked by lizaperez956
  166. english

    how can i interpret this qyote; " fear always springs from ignorance". i have to write an essay for this. please help interpret this. i have to do a paragraph.

    asked by Anonymous
  167. chemistry

    determin the formal charge on each atom in the following molecules and ions. (a)OSCL2 (b)FSO3

    asked by ashley
  168. Physics

    FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at

    asked by Elgoog
  169. Chem

    could you tell me if these are right and help me with the other 2 I cant seem to get them to come out. Calculate the pH of each solution given the following [H3O+] or [OH -] values. (a) [H3O+] = 1.5 10-8 M 1.0E-7 is what I got (b) [H3O+] = 5.3 10-6 M (c)

    asked by Carrie
  170. Social Studies

    I need help with these definitions! Thanks!! Just some or all would be nice!! Cyrus the Great Zoroastrianism Sparta & Athens Peloponnesian War Macedon Philip of Macedon Alexander the Great Hellenism Hellenistic culture Carthage & Punic Wars Julius Caesar

    asked by Herty
  171. math

    Hanna bought 4 pencils for $.09/each, two notebooks for $1.58 each, and one pack of paper for $3.17 each. She paid with $10 and got $3.58 in change. Is this amount correct, and if not, why? Just need the WHY part of the answer. The correct change should be

    asked by Shannon
  172. Chemistry Kinetics

    If I had the equation H2 + I2 --> 2HI could I write the rate of reaction as d[H2 + I2]/dt = k[H2]^x[I2]^y were x is the order of reaction with respect to x and y is just the order of reaction with respect to y thanks

    asked by Kate
  173. geometry

    In triangle ABC, the lenght of AB is 24. In the triangle, a soccession of midsegments are formed. How do you find the nth stage?

    asked by Janet
  174. Chemistry

    Select the options below that are correct for diamagnetism and paramagnetism. A) Most elements and some compounds are paramagnetic. B) Individual magnetic moments in paramagnetic substances cancel each other. C) Diamagnetism is observed as repulsion in a

    asked by Kay
  175. arithmetic

    jack wants to buy an equal number of green,blue and white ornarments for his holiday tree.green ornarments come in packages of3; blue ornarments come in packages of 6; the white ones come in packages of 4.what is the least number of packages of each color

    asked by cindy
  176. physics

    find the kinetic energy of an 8kg mass moving at 5m/s

    asked by shellie
  177. W.H.Atwell

    Does 2Na 2H2O 2NaOH H2 shows that the total mass during a chemical reaction stays the same?

    asked by Brittany
  178. Algebra 1

    After 5 lessons of French, you have learned 20 vocab words. After 10 lessons, you know 40 vocab words. Write an equation that gives the number of vocabulary words you know as a function of the number of the lessons you have had. Label variables. So, 5x+20

    asked by Allyson
  179. finance

    equipment cost $20,000 and is financed over a period of five years at an interest rate of 12%...What is the monthly payment...What is the loan balance at the end of four years and how much interest will have been paid on the loan after five years?

    asked by Loretta
  180. physics

    A small boy is trying to open a 50 kg door with a height of 2 meters and a width of 75 centimeters. If he applies a force of 5 Newtons at the door handle (5 cm from the edge), how long will it take to open the door so that it's completely open

    asked by charlotte
  181. Finance

    John has a chocie to make between two investment opportunities. investment 1, would bear a interest of 12.5% over a period of 5 years but is taxable. investment 2 would bear an interest of 8% over the same period but is tax exempt. If john 's taxable rate

    asked by megan
  182. art history

    Orientalism and Postcolonial. I am going to write an essay around 2000 - 3000 words academic essay on Orientalism and Postcolonial. I need some advices and suggestion for some thesis that I have to pay attention on, and I will appreciate if someone can

    asked by Cheuk
  183. Calculus 2

    A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's

    asked by Billy
  184. math

    A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space

    asked by donna
  185. Physics

    Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the

    asked by Sara
  186. Math

    Jill has 4 pints of water in a 4-pint bucket. Jack has an empty 1-pint bucket and an empty 3-pint bucket. None of the buckets has measurement markings. How can they divide the water so each has exactly 2 pints?

    asked by Roni
  187. Math PLEASE HELP

    No one was answering my questions for the first question I posted so I posted it again. answers for 12345: 1. 9 3/5 2. 4 1/2 3. 4 3/4 4. still 7 6/9 5. still 10 16/18

    asked by Pratigya
  188. college

    You transfer a sample of gas at 17 degrees celsius for a volume of 5.86 L and 1.10 atm to a container at 37 degrees celsius that has a pressure of 1.10 atm. what is the new volume of gas?

    asked by dayton
  189. Math126

    A Community College has 3,000 student and 90 instructors.The college plans that enrollment will be 3,500 next year.How many new instructors should be hired if the college wants to keep the same students to instructor ratio?

    asked by Kelli
  190. English

    1.Agba fed milk and honey to the newborn colt. 2.Sometimes the playful colt bit Agba's fingers. Identify the direct objects 1.milk, honey 2.fingers'

    asked by Tracy
  191. market and sales

    the most common basis for market segmentation is demographics psychographics media usage cost analysis

    asked by jennie
  192. algebra

    -2y+x=2y-8

    asked by adrien
  193. chemistry

    If it takes 20 h to convert 100 g of reactant A to product C at 20 degrees Celcius, approximately how many minutes would it take at 90 degrees Celcius? (a formula for this would be so helpful) Thanks!

    asked by Marta
  194. Chemistry

    When finding uncertainties in measurements, I know that if you are adding or subtracting, you must add the uncertainties of the two values. But what do I do if I multiply/divide?

    asked by L
  195. English

    The noise from the ducks in the pond was soothing. I have to Underline each independent clause and subordinate clause twice then tell if the sentence is simple, compound, complex, compound-complex 1.The noise from the ducks was soothing=indep clause in the

    asked by Hayden
  196. Macroeconomics

    For each of the following possible events, indicate whether the demand or supply curve for dollars would shift, the direction of the shift, the determinant of the change, the inflow or outflow effect on the balance of payments (and the specific account

    asked by Sandy Ben
  197. math

    lonny has 15$ to buy some groceroies for his mom.milk costs $2.39,bread costs $1.29.eggs costs $0.79,and mayonnaise costs $2.49. if he buys one of each item, can he expect to get $10 in change?

    asked by cindy
  198. Finance

    You are a finance manager in Big Pen Ltd. The degree of operating leverage of your company is 5' The degree of financial leverage of your company is 3. your Managing Director has found that the degree of operating leverage and the degree of financial

    asked by SEWmi
  199. Poem of wisdom

    hey, I was wondering if you could lend me some help with the poem I want to create. I want to create a poem with wisdom in it. I can't seem to think of a good theme.... I actually want to create a poem on nature. Like what I want to say is that Nature is

    asked by Desoray
  200. Chemistry

    When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?

    asked by Ash
  201. Algebra uno help please. :)

    Write an equation of the line that passes through the point ( 8,3) and has the slope of 1/4 So, I think you would write it as Y=1/4x+B and, you'd plug in 8 for the x, and 1 for the y. So you'd get 1=1/4(4) + B And you'd get.. 1=1+B So, subtract one from

    asked by Allyson
  202. huckleberry finn

    what is the definition of dauphin this huckleberry finn? I searched on the internet but there were so many i didn't know which one was used in the book

    asked by hannah
  203. 6th grade

    What are scientific independent and dependent variables?

    asked by Jasmin Villegas
  204. MATHS

    A man is 2 years younger than his wife.Their current ages both are prime numbers. Next year his wife age will be a multiple of 11.And the husband will be the product of two consecutives. How old are both ?

    asked by JJ
  205. trig

    solve: 1/m=m-34/2m^2

    asked by ada
  206. math

    the digits 1 through 9 are used in this subtraction problem --- - 452 = 3--

    asked by Hollie
  207. physics

    I'm just having trouble setting up this problem. It's based on a picture so I'll describe it: There is an open ladder standing on the floor with a person on the third step on one side. There is a crossbar attached to the two sides of the ladder and the

    asked by Meghan
  208. Trig/algebra2

    ab-bc+ad-dc/ab+bc+ad+dc Simplify and state the domain

    asked by James Caulfield
  209. Religion and Global culture

    How's this so far? In the current global culture, religion should be understood correctly and valued as one of the defining factors. If we look today at various global issues today, especially the key issues relating to ties between various countries,

    asked by yfaridi1
  210. Statistics

    How do I solve by the elimination method 9x-y=75 x+y=15

    asked by Gary
  211. College Physics

    Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the

    asked by Sara
  212. Chemistry

    If you add acid or base to a buffer, how will the pH change.

    asked by Anne
  213. science

    A place or object used for comparion to determine whether something is in motion is called what?

    asked by abby
  214. science

    A balloon at contains 0.5 L of gas at a constant pressure of 1.0 atm. If the pressure is increased to 3.0 atm, what will be the volume of the gas?

    asked by Anonymous
  215. ms.sue

    if y+2=13 woudlnt you add 2 too both sides amd get y=15?

    asked by josh
  216. adult ed geometry

    Adult education due to the level -thanks - An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest hundredth.

    asked by antonne
  217. Pjysics Help!!!

    An organ pipe is open at one end and has a length of 3 m. What is its fundamental frequency if the speed of sound is 336 m/s?

    asked by Andrew
  218. US history

    How did the Hayes-Tilden deal lead to the Jim Crow laws in the South?

    asked by anthony
  219. statistics

    Find a number 't' such that the probability that the sample mean will differ from the population mean by at least 't' is not greater than 0.05 if the sample size is 100 and sigma is 3

    asked by Anonymous
  220. Algebra

    Is there an instance in which a linear equation is not a function?

    asked by Cathy
  221. 8th grade language arts

    how do i use the word cantankerous as a mispaced modifier?

    asked by morgan
  222. comm155

    help me write a paragraph, using several sentences, to describe a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. Use at least five different pronouns in your sentences.

    asked by queen
  223. Math

    in parralleloggran WXYX m/_Y = 65 What are the measurea of /_W , /_X, and /_Z in degrees?? /_= angle

    asked by Bri
  224. child care

    1.When properly executed, the behavior management strategy known as time-out becomes(a) A. a positive reinforcer. B. more effective than logical consequences. C. a conversation between child and adult. D. suitable punishment for misbehavior. 2. Which of

    asked by sara
  225. 12th grade math

    State the asymptote of the function g(x)=6^x-9

    asked by Chrisy Morris
  226. math

    3x^2+11x+5=15?

    asked by Ericka
  227. physics

    Determine the acceleration and normal force of system below. Assume no friction, the mass equal to 10.0 kg and the angle equal to 60.0 degrees. Assume gravity equals 9.8 m/s/s. The picture looks like a right triangle with a box sliding down it. I am a 9th

    asked by Anonymous
  228. world lit

    Which word did not originate from those used in various occupation? 1.seasons 2.person 3.tease 4.broker

    asked by carl
  229. geometry

    Use SAS (Side-Angle-Side congruence) to explain why triangle WXY congruent to triangle WZY

    asked by phoebe
  230. spanish

    Direct + indirect object pronoun –¿Les estás diciendo la verdad? –¡Claro que estoy ________! ??

    asked by AYUDA ME PORFAVOR!! :)
  231. math

    i have adhd,i need the best way to learn how to convert percentages to fractions. I have 13% 18% 44% & 80% my mom has been out of school a while and doesnt feel im learning in a way i can understand i got the answers 1/8 1/5 2/5 & 4/5 are these correct as

    asked by laevon
  232. college

    Use the Microsoft Web site microsoft. com/ windows/ compatibility to research whether a home or lab PC that does not have Windows Vista installed qualifies for Vista. Fill in the following table and print the Web pages showing whether each hardware device

    asked by Anonymous
  233. Geometry

    You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?

    asked by Myung
  234. Science

    The pigment melanin in the skin functions to a. Produce new living cells in the epidermis b.help protect the skin fron sunburn c. Keep water within the skin

    asked by Ashley
  235. Statistics - PLEASE HELP ME

    McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and not-so-attractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between

    asked by Kelly
  236. college

    Maximize P = x + 16y - z subject to 2x + y + z 14 4x + 2y + 3z 28 2x + 5y + 5z 30 x 0, y 0, z 0

    asked by Anonymous
  237. Physics-Please help

    I have a question about the International Space Station-Its been orbiting earth at 350km-If the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new

    asked by Julie
  238. Chem

    How many orbitals have the values n_3=4 and l_3=3 ? How many orbitals have the values n=4, l=3, and ml=-2?

    asked by Kay
  239. SMU

    Ans:- Machines are used to pack sugar into packets supposedly containing 1.20 kg each. On testing a large number of packets over a long period of time, it was found that the mean weight of the packets was 1.24 kg and the standard deviation was 0.04 Kg. A

    asked by Gunjan
  240. world history

    how did the Aztec and the Inca built their empires/

    asked by cynthia
  241. economic help!!!

    what happens to an industry if a firm is making large economic profits?

    asked by sammi
  242. 11th grade

    a 1000 kg car has a motor that exerts 1500 N of force to move it forward. a frictional force of 400 N opposes it's forward motion. calculate the acceleration of this car

    asked by Anonymous
  243. chemistry

    what is the molarity of an unknown HCI concentration if it requires 75ml of a 0.2 M NaOH solution?

    asked by jo
  244. VB programming

    This problem is creating code for a line chart. - Write a program to create the line chart. Use Table in 9.6: Table 9.6] Two -year college enrollments (in thousands). 1960 1970 1980 1990 2000 ---------------------------------- Male 283 1375 2047 2233 2398

    asked by Lee
  245. algebra1

    given points : p (2,1) q (-4,2) m(5,3) find the coordinates of a point n such that pq and mn are parallel find coordinate of a point k such that mk is perpendicular to pq

    asked by chauneshia
  246. math

    A whole circle is divided into thirds. Each third is what percent of the whole circle? (No remainder change to fraction)

    asked by michelle
  247. Algebra help, check+ Help?

    Advertising costs for the save more store increases by about 32,000 per year, 352,000 was spent on advenrtising in 1992, write an equation that gives the amount spent as a function of the number of years since 1980. So, you get. Y=32000x But, I don't know

    asked by Allyson
  248. deforestation

    send me 5 sentences about deforestation

    asked by mani
  249. Chemistry

    A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?

    asked by Anonymous
  250. MATH

    Perform the operation for each equation, if there is a solution (Matrices) [4k -8y ] [5k+6y 2k+1] [6z - 3x] - [2z+5x z+4] [2k + 5a] [4k+6a 3a+2]

    asked by Daria
  251. reimbisement methodologies

    You're an HMo director. you would like to ensure that your managed care plan is meeting industry standards. what is one way that you can do this?

    asked by kim
  252. english

    Hello! I am listing gown my works cited for my MA paper and one of my sources is a Model Teaching Unit I found on the Internet. I cannot post you the link :/ So it is not a book and I do not know how to write it in my works cited Help?

    asked by tee
  253. Math

    Someone earns 6% commission on the value of each house he sells. His commission on a sale was $8700. What was the value of the house?

    asked by Clammyson
  254. geometry

    using a triangle how can i draw 5 lines for form 6 congruent triangles?

    asked by jill
  255. Finance

    What is the monthly payment of $200,000 is financed for 15 years at 7.5%?

    asked by vicki
  256. algebra

    Divide and Simplify : (t-3)/(t+2)÷(4t-12)/(t+1)

    asked by rebecca
  257. data analysis

    after reviewing the Nursing Management (2006) article, what would you recommendations in defining database specifications, scope, development, implementation, and maintenance?

    asked by Anonymous
  258. French

    I need 10 sens. translated to french.. 1. how are you today 2. very well how about you 3. i love you 4. nice to meet you 5. i am so bored 6. I love to play gymnasics but hate to play soccor 7. What are up up 2? 8. Im so happy 9. Why are you so mad 10. Yes

    asked by Bailee
  259. Chemistry

    When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?

    asked by Ash
  260. Math

    Aa square and a triangle have equal areas. If a side of the square is 10 inches and the base of the triangle is 10 inches, what is the height of the triangle?

    asked by Gigi
  261. Science

    True or false A spurt if blodd flowing through arteries makes the arteries CONTRACT? if false what is the correct word?

    asked by Please Help
  262. Physics

    Hi, I have a question for physics An object with mass m = 20 kg is released from a height h = 60 m above the ground. After 2 seconds, the object's quantity of energy Thanks for your help mvh Oddbjørn

    asked by Oddbjørn
  263. English

    1.If so, then you probably know some stories by Marguerite Henry. 2.Her books about horses have thrilled readers for more than forty years. 3.Henry wrote many popular books, such as Misty of Chincoteague and King of the wind. 4.Her book King of the Wind

    asked by Tracy
  264. college

    determine the size of the sample to be taken from a population with S.D. 10 if the probability of the sample mean differing from the population mean by more than 2, is less than 0.2

    asked by Anonymous
  265. math

    What does a snowflake have to do with math?

    asked by me
  266. calculus

    if the area of a triangle with the base 2F and height F-2 is equal to F, compute F.

    asked by Ashley
  267. chem

    1. A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL? How many moles do you need? moles = M x L. please help today

    asked by moon
  268. geography

    what are the three things that describes what a map is

    asked by kirsten
  269. chemistry

    How to know if in TLC and HPLC if it is going forward or reverse?

    asked by Ben
  270. World history

    The years augustus Caesar reigned? What military advantage did carthage have over rome?

    asked by Cheyenne
  271. college

    explain how the organism in a diagram has evolved physiologically to become suited to its environeme

    asked by amanda
  272. Math fractions

    How do you get the answer for addition with unlike denominators: 3/8 + 1/2=

    asked by Vicky
  273. english

    i need help writing an introductory paragraph on growing up

    asked by ryne
  274. Math-3rd grade

    Round to estimate the sum of all the numbers in 14.

    asked by Paul
  275. physics

    Two speakers 14m apart are emitting tones at a frequency of 1020 Hz. what is the closest distance (in m) from one speaker, along the line connecting the speakers, at which the sound intensity will be zero?

    asked by Dana
  276. english

    In the following sentence, the comma is used correctly with an introductory clause: “Training for the upcoming ten-mile marathon, Lizette includes more protein and complex carbohydrates in her diet.” (Points : 1) True False

    asked by Anonymous
  277. math

    what set of 7 numbers have the following landmarks'''' mode 21 median 24 maximum 35 range 20

    asked by megan
  278. chemistry

    In HPLC which column comes out first, if it is going forward or reverse? its a question on my final, please help?

    asked by Ben
  279. 1st grade

    write the sentence correctally. the name of that girl who painted that daisy is joann reed

    asked by honey
  280. chemistry

    what is the retention time (RT) of polar and nonpolar stuff?

    asked by jessice
  281. algebra

    simplify square root of 234 x^8y^9

    asked by Anonymous
  282. chemistry

    how many grams of sodium nitrate can be dissolved in 200 g of waer at 10 Deg C?

    asked by diane
  283. CALC

    I just need help with changing the order of integration. I can do the actually integral by myself. Thank you :) int f(x,y) dydx where y bounds= 1 to e^x and x bounds= 0 to 4 I thought the new bounds were int f(x,y) dxdy x= 0 to log(y) y= 1 to e^4 Please

    asked by Adam
  284. Physics

    The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?

    asked by Rose
  285. Chemistry

    A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?

    asked by Anonymous
  286. physics

    what happens when light moves from a material with a lower index of refraction to another material with a higher index of refraction? please sho work and thank u

    asked by maria
  287. algebra

    A line passes through (7, –6) and (8, –5).

    asked by Mar
  288. Beginning Chem.

    A. What is the frequency of a photon with a wavelength of 8.35 multiplied by 10-5 m? (The speed of light in a vacuum is 2.998 multiplied by 108 m/s. Planck's constant is 6.626 multiplied by 10-34 J·s.) B. What is the wavelength of a photon with a

    asked by NeedHelp!
  289. Chemistry

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

    asked by Kayla
  290. Psychology

    So my class watch this movie called Boys Do Not Cry (Boys Don't Cry) and now i have two write a 7 page paper. I am having some difficulties trying to answer this questions Please help me giving some ideas of what i could write. •Describe the socio-sexual

    asked by Yaneth
  291. 4th grade

    Terrance describes the amount pf money made based on the number of hours worked by the function rule y = 10h. Given this function, how much money does Terrance earn for each hour worked? Explain

    asked by brandon
  292. Math

    Baby Leanne is L inches tall.write expressions in terms of the variable L,to represent the heights in inches of these members. her mother,who is 15in. shorter than four times Leanna's height

    asked by ursula
  293. social studies

    romans were made up of threr different groups of people. who

    asked by veronica
  294. English

    Can you check this sentence, please? 1) The subtitle to the novel is emblematic of Frankenstein's being an overreacher. He has to keep his face covered because of his horrible scars.

    asked by Franco
  295. English

    Hello. I will really appreciate some help from a native speaker of English. Which word is correct in the following sentence: Both countries claim the four islands WHICH or THAT are known as... Maybe, both? And one more question. Is it possible to say: The

    asked by Ilma
  296. Trig/algebra2

    ab-bc+ad-dc/ab+bc+ad+dc Simplify and state the domain

    asked by James Caulfield
  297. Algebra 1

    y=mx+b

    asked by Mecenzie
  298. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Kevin
  299. Sociology

    Which of the following is an example ofprejudice?John, who lives in Texas, believes that the US is the best country in the world, or Mary believes that all men are pigs?

    asked by Shirley
  300. physics

    A 20 gram ball is pushed horizontally off a ledge 30 meters high. How long in seconds until the ball hits the ground?

    asked by Diamond
  301. math

    i cant find these measurements 536 ml=_______L 38 ml=_______L

    asked by M.P.L
  302. Algebra

    y=mx+b solve for x

    asked by Taylor
  303. Math

    What is cubic feet = toin meaters?

    asked by Bailee
  304. 7th grade

    find the next three numbers in the pattern 2/3, 1 5/12, 2 1/6, 2 11/12 _, _, _

    asked by Ashley
  305. 5th math

    what is the mode for the following number? 9,5,3,6,5,2,4, please !show me how to do this problem> thank you!!

    asked by pat
  306. social studies

    What does this quote mean? “Why should the Indian be expected to plant corn, fence lands, build houses, or do anything but get food from day to day, when experience has taught him that the product of his labor will be seized by the white man to-morrow?

    asked by patrick
  307. Math

    Is 3/4 between 7/12 and 18/24 on the number line?

    asked by Ashley
  308. physics

    how many lunar radii are in one AU?

    asked by rachel
  309. spelling

    Satelites Is that spelled correctly?

    asked by ray
  310. pre algebrahow

    do you solve a negative fraction plus a posotive fraction?

    asked by emma
  311. math

    if 720 can be written as the product of five consecutive integers, determine the middle integer.

    asked by Ashley
  312. Math

    Observe that : 1/1*3= 1/3 1/1*3+ 1/3*5= 2/5 1/1*3+ 1/3*5+ 1/5*7= 3/7 1/1*3+ 1/3*5+ 1/5*7+ 1/7*9= 4/9 Come up with a formula s(n) for the above, for n is greater than or equal to 1. Prove it by mathematical induction

    asked by Sarah
  313. math

    what is a slope intercept?

    asked by David
  314. math

    how do i solve 4/r5+6/rt divided by 12/st

    asked by james
  315. South America

    How has geoghrgphy shaped the way people live in south america

    asked by kimberly
  316. math

    Synthesis sqrt(2*x^2-5*x-12)

    asked by Al
  317. Phy. Science

    What is the state of matter when non-convective rain leaves the cloud?

    asked by Mimi
  318. Math

    Write an expression that represents each question What is 2/3 of 3/8? How many 3/8 are in 2/3?

    asked by Ashley
  319. english

    Select the sentence that is punctuated correctly. (Points : 1) 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

    asked by Anonymous
  320. english

    Select the sentence that is punctuated correctly. (Points : 1) 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

    asked by Anonymous
  321. 8 th grade math

    2a+ab=c solve for a

    asked by joe
  322. algebra 1

    1/2x+2/3=1/8x-3/2

    asked by Anonymous
  323. algebra 1

    1/2x+2/3=1/8x-3/2

    asked by Anonymous
  324. english

    i need to put this words in plural Daisy-daisies Day-daies Trench-trenchies Disc-discies Box-boxies Glass-glassies Sky-skies Whish-whishies Branch-branchis Horse-horseies Power-poweries Lunch-lunchis

    asked by 3 grade
  325. math

    how do I rewrite using the distributive property 3^2 + (9-3) 3 x (24/8) + 2

    asked by Justin
  326. History

    How did the Monroe Doctrine affect the relationship between the United States and Latin America?

    asked by Lola
  327. math

    prove that the centroid of equilateral triagle divides the medians into 2:3 ratio

    asked by shweta
  328. 8th grade

    I don't understand constant rate of change can you give me some examples. The graph I have shows the depth of the water in a vase over 8 days

    asked by Abby
  329. Math

    How to solve the simultaneous equations 3x + y = 17 and y = x + 1 ?

    asked by Katie
  330. math

    Sir pizza donated 14 pizzas to the sixth grade picnic. How many pizzas were there for each of the three classes of sixth graders? (No remainder change to fration)

    asked by michelle
  331. chemistry

    in outo engine whith no pollusion controls, about 5% of the fuel(assume 100%actane c8H18)is unburned .calculate the mass and volume ratio of Co to C8H18 in exhaust gas? 2C8H18+17O2 =16CO+18H2O

    asked by david
  332. english

    what is the synonyms of scissors?

    asked by rahim
  333. Social Studies

    What were one cause and one effect of the American Revolution?

    asked by Mike
  334. math

    Four well-defined social classes (1=low and 4=high) exist in a country. If X is a random variable giving the social class of the son of a father from social class 1, the distribution of X is as follows: we have a small chart that has son's class, X and a

    asked by m
  335. Math

    Baby Leanne is L inches tall.write expressions in terms of the variable L,to represent the heights in inches of these members. her father,who is 15 inches shorter than twice Kerry's height. Kerry's height:5in.

    asked by ursula
  336. math

    While performing a calculation, you divide a number by 5 two times to get the answer 12. You should have divided by 5 only once. What is the correct result of the calculation

    asked by bb
  337. Psychology

    So my class watch this movie called Boys Do Not Cry (Boys Don't Cry) and now i have two write a 7 page paper. I am having some difficulties trying to answer this questions Please help me giving some ideas of what i could write. •Describe the socio-sexual

    asked by Yaneth
  338. mifflin

    informations about the articles of confederatiom

    asked by ama
  339. 5th grade

    lonny has $15 to buysome groceries for his mom .milkcosts $2.39,bread costs $1.29,eggs costs $0.79, and mayonnaise costs $2.49. if he bys one of each item ,can he expect to get $10 in change?

    asked by cindy
  340. Algebra

    I am stuck and hope that you can help me... How do I solve 3x^2-x-4=0 by completing the square? Thank you so much!

    asked by Tanya
  341. Math

    Need help with the problem 25x^2=20x-4 Thank you!!

    asked by Sarah
  342. chem

    how many moles of Si(OH)4 form when 4.01 moles of H2O react with an excess of SiCl4?

    asked by sand
  343. Biology

    This question refers to the replication cycle of viruses. Can anyone invent a drug that would reduce the severity of a viral infection, where one might block the cycle.

    asked by Greg
  344. math

    can you reduce the following if so what are the answers: 4/5 5/10 9/12 6/9 16/18 2/24 4/12 6/8 4/9 9/12 15/36

    asked by Trixi
  345. PYSCIS!!!!

    By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

    asked by Molly
  346. chem

    what is the name of ONO and what is its charge

    asked by anon
  347. math

    3over N x 4= 3 what is the value of N

    asked by A.T.
  348. chem

    How many orbitals have the values n3=4 and l3=3 How many orbitals have the values n=4, l=3, and ml=-2

    asked by Kay
  349. physical science

    what is non convective rain?

    asked by Jake
  350. Christian Couseling

    What are the major themes of The Discipleship Counseling Handbook by Neil T. Anderson

    asked by Marla
  351. math

    If a mixture weighing 60g is divided into capsules of equal strength, each capsule will weigh how many grains

    asked by artria
  352. Math

    If -T = 5, what is T ?

    asked by Joe
  353. math

    8-7b=-6b+9

    asked by josh
  354. math

    Imagine you want to make a 2cm. by 2.5cm. What percent should you use?

    asked by amy
  355. Math

    a percentage bar graph is sometimes used like a circle graph. If the bar is 8 cm, how long is each piece?

    asked by Brian
  356. math

    what is the least common denominator of 1/12 and 4/5? is it 5? 12? 30? 60?

    asked by julian
  357. english

    what is the synonyms of series?

    asked by rahim
  358. Math

    If a person rode 45 miles stopping at certain intervals in 9 times and if the intervals were equally apart. How far apart were they?

    asked by Princess
  359. math

    1/2x=2

    asked by josh
  360. Biology

    Give an example of a tandem cluster and describe which protein it will produce.

    asked by Ari
  361. economic help!!! please

    what happens to an industry if a firm is making large economic profits?

    asked by sammi
  362. algebra1

    1+1/3a=-6

    asked by josh
  363. Psychology

    You will also need to consider the impact of the condition on the individual and his immediate family members in terms of how this condition may influence the psychosocial, emotional, financial, and possibly legal status of the family. •Make an informed

    asked by Yaneth
  364. math

    -6+5b=6b-7

    asked by josh
  365. Englis

    1.Read King of the Wind, and learn more about the adventures of Agba and his horse. 2.Later, the boy and the horse left their home and traveled to England. 3.The head of the stables often mistreated Agba and the young colt. Identify each direct object

    asked by Tracy
  366. math

    1/3b=-3 i know u would divide both sides by 1/3 and it would cancell out the 1/3 and when u divide 1/3 by -3 you will get -1/9 so u flip it u willl get -9 right?

    asked by josh
  367. math

    the circumference of a wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1 mi = 5280 ft)

    asked by Mike
  368. english

    need a thesis for the play trifles my title is We Got Your Back

    asked by nadine
  369. bio

    any thing helps below write the formula which shows the sequence of events that results in the production of a new protein molecule. then explain what is happing in each step of the sequence.

    asked by Anonymous
  370. 6th grade

    What are the 5 energy changes when a person jumps upward?

    asked by Michelle
  371. math

    change 4+4+3 into a multiplication sentence

    asked by Daniel