Questions Asked on
November 8, 2010

  1. pscyhology

    It is my final test and I want to do a good job! Below I will show you the questions and what I think the answer is, if any are wrong can you please tell me which and EXPLAIN why they are so I can actually learn!? Here we go: 1. Which one of the following

    asked by Jessyca
  2. Chemistry

    If 1.10 g of steam at 100.0 degrees celsius condenses into 38.5 g of water, initially at 27.0 degrees celsius, in an insulated container, what is the final temperature of the entire water sample? Assume no loss of heat into the surroundings

    asked by Please Help!
  3. math

    What is the answer to Algebra With Pizzazz 190?

    asked by zackT
  4. 12th grade

    on the "aster flower." What time of year might be symbolized by the aster flower and the other images of plant life found in the poem? How do these images contribute to the overall mood of the poem?

    asked by LoLo
  5. Chemistry

    a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is titrated with a 0.125M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (ch3)3N=4.19

    asked by Amanda
  6. Chemistry

    Would there be any effect on the amount of precipitate if tap water containing calcium ions is used instead of deionized water to dissove the reactants? Assume that Na2CO3 is present in excess

    asked by Chloe
  7. physics

    an astronaut rotates at the end of a test machine whose arm has a length of 10.0m. if the acceleration she experiences must not exceed 5g (g=10m/s^2? what is the maximum number of revolutions per minute of the arm?

    asked by katy
  8. Math

    Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric

    asked by Aly
  9. Chemistry

    Calculate the pH of 1.00L of a buffer that is 0.120M HNO2 and 0.150M NaNO2 before and after the addition of 1.00mL of 12.0M HCl

    asked by Amanda
  10. chemistry

    benzopinacol and benzopinacolone diferences Because benzopinacol and benzopinacolone have nearly identical melting points, describe (without using spectroscopic methods) how you might prove that samples of the two compounds are different.

    asked by Tammy
  11. science

    If a 60.0 kg person will need to climb a 10.0 m stairway how may times to work off each excess Cal (kcal) consumed?

    asked by Johnnie
  12. Chemistry

    A 25.0mL sample of a 0.100M solution of acetic acid is titrated with a 0.125M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.

    asked by Amanda
  13. chemistry

    0.361g of an unknown liquid occupied a volume of 250.0 ml Hg pressure and 100 degrees celcius. what is the molar mass?

    asked by khela
  14. math

    3.5% of d is 0.105

    asked by lilly
  15. Statistics

    a)One game in a state lottery requires you to pick 1 heart, 1 club, 1 diamond, and 1 spade, in that order, from the 13 cards in each suit. What is the probability of getting all four picks correct and winning $5000 b)If three of the four selections in part

    asked by Matthew
  16. physics

    Atwood's Machine An Atwood's machine consists of two masses, and , connected by a string that passes over a pulley. If the pulley is a disk of radius and mass , find the acceleration of the masses.

    asked by lauren
  17. statistics

    Container 1 has 8 items, 3 of which are defective. Container 2 has 5 items, 2 of which are defective. If one item is drawn independently from each container: Find the probability distribution for X defined as the number of defective items drawn(Hint: You

    asked by Marla
  18. Physics HELP HELP

    A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest. The cue ball is deflected so that it makes an angle of 30° with its original direction of travel. (a) Find the angle between

    asked by matt
  19. Physics

    A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 55.0 m/s. If the contact time between bat and ball is 3.40×10−3 s, calculate the average force between the ball and bat during contact.

    asked by brian
  20. adult education

    Briefly describe the cookie production process. 2. What are two ways that the company has increased productivity? Why did increasing the length of the ovens result in a faster output? 3. Do you think that the company is making the right decision by not

    asked by george
  21. Physics No one has responded could someone help

    A 61 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 29 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately

    asked by Anonymous
  22. Chemistry 151

    Of the following transitions in the Bohr hydrogen atom, the ____ transition results in the emission of the highest-energy photon. a.n=1, n=6 b.n=6, n=1 c.n=6,n=3 d.n=3,n=6 e.n=1,n=4

    asked by Jessica
  23. Physics Help!!! solids and fluids

    During a transatlantic flight, you drink a bottle of water and tightly close its lid again. Back on the ground during taxiing to the terminal, you notice that the thin plastic bottle is crushed, and you eyeball it to be only about 80 percent of its

    asked by Molly
  24. physics

    A 56.0 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.00 turns each second. The distance from one hand to the other is 1.5 . Biometric measurements indicate that each hand typically makes up about

    asked by steph
  25. physics

    A space habitat for a long space voyage consists of two cabins each connected by a cable to a central hub as shown in the figure below. The cabins are set spinning around the hub axis, which is connected to the rest of the spacecraft to generate artificial

    asked by Anonymous
  26. physics

    If a 0.1 kg mass is suspended at rest from a spring near the Earth's surface, the distance that the spring is stretched is measured to be 1.0 cm. What is the spring constant of the spring (remember the MKS units)? A mass of 2 kg is attached to a spring

    asked by devin
  27. algebra

    HOW DO SOLVE A BOAT TRAVELED 336 MILES DOWNSTREAM AND BACK. THE TRIP DOWNSTREAM TOOK 12 HOURS. THE TRIP BACK TOOK 14 HOURS. WHAT IS THE SPEED OF THE BOAT IN STILL WATER? WHAT IS THE SPEE OF THE CURRENT

    asked by JAMES'
  28. antelope valley

    What is the acceleration of a modified atwood machine if the mass of the cart is 4 kg and the hanging mass is 11 kg. (g = 9.8 m/s2 - give your answer to one decimal point) Please include the accepted abbreviated form of the appropriate unit. m/s2 = m/s/s

    asked by john
  29. Chemistry

    What is the concentration of ammonia in a solution if 22.35mL of a 0.1145M solution of HCl are needed to titrate a 100.0mL sample of the solution?

    asked by Amanda
  30. Chemistry

    A weather balloon is inflated to a volume of 29.6 L at a pressure of 734 mmHg and a temperature of 27.0 C. The balloon rises in the atmosphere to an altitude, where the pressure is 360 mmHg and the temperature is -13.6 C.

    asked by Lisa
  31. Physical science

    A 1.0kg metal head of a geology hammer strikes a solid rock with a velocity of 5.0m/s. Assuming all the energy is retained by the hammer head, how much will its temperature increase?

    asked by Anonymous
  32. Social studies

    What were a collection of spells buried with a mummy

    asked by Anonymous
  33. english

    A plot is made up of _____. more than one event? or one event?

    asked by danny
  34. chemistry

    Salicyclic acid reacts with methanol to produce methylsalicyclate or winter green and water according to the following reaction: C7H6O3 (s) + CH3OH (l) --> C8H8O3 (s) + H2O (l) What mass methylsalicyclate can be produced from 15.00 grams of salcyclic acid?

    asked by Christina
  35. physics

    A man pushes on a piano of mass 180 so that it slides at a constant velocity of 12.0 down a ramp that is inclined at 11.0 above the horizontal. No appreciable friction is acting on the piano. Calculate the magnitude and direction of this push A. if the man

    asked by bob
  36. geometry

    what are the possible coordinate of the midpoint of the given segment

    asked by dave
  37. Trigonometry

    Find the exact value of tan(a-b) sin a = 4/5, -3pi/2

    asked by Dee
  38. math

    An angent makes 16% commission on an athletes signing bonus. If the bonus is $26,000, what is the agents commission?

    asked by lilly
  39. physics

    Water is flowing at 6 m/s in a circular pipe. If the diameter of the pipe decreases to five-seventh its former value, what is the velocity of the water downstream?

    asked by David
  40. Human Physiology

    A subject with a body weight of 60 kg was injected with 10 ml of a 1% (w/v) solution of Evans Blue. After 10 min, the blood was sampled and found to contain 0.035 mg ml^-1 of the dye. What is the subject’s plasma volume in litres?

    asked by Dean
  41. physics

    How much energy is required to change a 40 g ice cube from ice at -40°C to steam at 100°C?

    asked by Erica--help!
  42. World History

    What factors contributed to Islam's spread to south and southeast Asia?

    asked by Lala
  43. Chemistry

    The boiling point elevationof an aqueous sucrose solution is found to be 0.39 degrees Celsius. What mass of sucrose (molar mass=342.30g/mol) is contained in 500g of the solution? Kb (water)=0.512degrees C/m

    asked by Sharon
  44. physics

    A rectangular block of ice 10 m on each side and 1.1 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. a) How high does the top of the ice block float above the water level? m * .116 OK HELP: Use

    asked by Sarah
  45. Physics

    a pieces of metal of mass 3.6kg is suspended from a spring balance, what is the reading of spring balance in newton, with a metal in air, with the metal of 33newton

    asked by fola
  46. physics

    the earth (mass=5.98x10^24kg) rotates around the sun in a orbit that is approximately circular, with a radius of 1.5x10^11m find the orbital speed of the earth around the sun

    asked by peter
  47. drawing

    a)One game in a state lottery requires you to pick 1 heart, 1 club, 1 diamond, and 1 spade, in that order, from the 13 cards in each suit. What is the probability of getting all four picks correct and winning $5000 b)If three of the four selections in part

    asked by Matthew
  48. Chemistry

    What is delta H for NaOH(s)+1/4O2(g) yielding 1/2Na2O2(s)+1/2H2O(l) ?

    asked by Michelle
  49. math

    The number of households with vcrs in 1990 was about 87.5% of the number with vcrs in 1993. About how many households had vcrs in 1993?

    asked by lilly
  50. geography

    Which of the forty-eight contiguous states has the largest land area? My answer is Texas. I actually just looked on my U.S. map but then decided to look online at another U.S. land map. So I do think I am correct but just wanted to make sure.

    asked by Reed
  51. physics

    A pendulum has a length of 1m. What is the period of this pendulum? What is the frequency of this pendulum? You measure the period of a pendulum and get 25s. What is the length of the pendulum?

    asked by devin
  52. Calculus

    a police helicopter is flying at 200 km/hr at a constant altitude of 1 km above a straight road. The pilot uses radar to determine that an oncoming car is at a distance of exactly 2 km from the helicopter, and that this distance is decreasing at 250 km/hr.

    asked by Alex
  53. 11th grade physics

    find the value of 60 joule per minute on a system which has 10 cm,100gm, and 1 minute as fundamental units.

    asked by help
  54. Spanish 1

    16. Soy ordenado, pero ____ soy desordenado. a. tampoco b. jueves c. a veces d. de veras C? 17. a mí no me gusta _____. a. pero a ti b. tampoco c. a veces a mí d. tambíen Not sure... 18. -¿_____ impaciente? -No, soy paciente. a. Eres b. Te llamas c.

    asked by mysterychicken
  55. physics

    A sealed cubical container 30.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 20.0°C. Find the force exerted by the gas on one of the walls of the container.

    asked by Milo
  56. Physics

    I wasn't asking anyone to do it for me. I need help starting it. I've been waiting all weekend. Posted it a few times: A 61 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 29 m/s. If the

    asked by Anonymous
  57. physics

    an astronaut rotates at the end of a test machine whose arm has a length of 10.0m. if the acceleration she experiences must not exceed 5g (g=10m/s^2? what is the maximum number of revolutions per minute of the arm?

    asked by katy
  58. 11th grade physics

    the horizontal range of a projectile is 4 root 3 times of its maximum height. calculate the angle of projection.

    asked by help
  59. Chemistry

    How many moles of Mg2+ and NO3- form for each mole of Mg(NO3)2 that dissolves?

    asked by Kaley
  60. Pys. Science

    Help......A 1.0kg metal head of a geology hammer stikes a solid rock withy a velocity of 5.0m/s. Assuming all the energy is retained by the hammer head, how much will its temperature increase? (C head= 0.11kcal/kgCdegrees) I don't comprehend any of this!

    asked by Staci
  61. physics

    an astronaut rotates at the end of a tesr machine whose arm has a length of 10.0m. if the acceleration she experiences must not exceed 5g (g=10m/s^2? what is the maximum number of revolutions per minute of the arm?

    asked by katy
  62. physics

    What is the minimum work needed to push a 900 kg car 890 m up along a 7.5 degree incline? (a) ignore friction (b) Assume the effective coefficient of friction retarding the car is 0.20.

    asked by amy
  63. PHYSICAL SCIENCE

    If a 50.0g silver spoon at 20.0 degrees C. How much heat does the spoo absorb from the coffee to reach a temperature of 89.0degrees C?

    asked by Lady T.
  64. Algebra

    One inch is equal to approximately 2.5 centimeters. Let x represent inches and y represent centimeters. Write an equation in standard form relating x and y. Give the values of A, B, and C.

    asked by Loren
  65. math

    1. express tan 11pi/6 in terms of a positive acute angle 2. solve for x : sin(4x-7) = cos 17 thank you!

    asked by kelsie
  66. acids and bases

    Give the formula of the conjugate base of each of the following acids: a.) citric acid b.)oxalic acid c.)dihydrogen phosphate ion d.)phenol

    asked by jj reddick
  67. physics

    A sealed glass bottle containing air at atmospheric pressure (101kPa) and having a volume of 22 cm^3 is at 23 degrees Celsius. It is then tossed into an open fire. When the temperature of the air in the bottle reaches 391 degrees celsius, what is the

    asked by Norah
  68. Biology

    The large intestine supports ___% of chemical digestion. A) 0 B) 75 C) 50

    asked by Bee
  69. math

    a circular dartboard of radius 1 foot is at a distance of 20 feet from you. you throw a dart at it and it hits the dartboard at some point Q in the circle what is the probability that Q closer to the centre of the circle than the periphery a. 0.5 b. 1 c.

    asked by reenu
  70. calculus

    Find the differential dy of the given function: y=xcosx would this just be dy=(cosx-xsinx)dx

    asked by jess
  71. Science

    1. Explain the SIMILARITIES between ice cores and tree rings. If possible:{use 2 to 3 sentences}. ,Thanks.

    asked by Sherkyra8456
  72. chemistry

    A 2.85 g sample of an unknown chlorofluorocarbon is decomposed and produces 558 mL of chlorine gas at a pressure of 756 mmHg and a temperature of 298 K.What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?

    asked by cj
  73. chemistry

    Suppose that 50.0 cm3 of 2.00 M hydrochloric acid are added to 4.00 grams of zinc metal. What it the limiting reagent? How many grams of zinc are actually consumed? What is the concentration of the hydrochloric acid solution after the reaction has

    asked by Fania
  74. physics

    A 25 kg chair initially at rest on a horizontal floor requires 360 N horizontal force to set it in motion. Once the chair is in motion, a 316 N horizontal force keeps it moving at a constant velocity. a) Find the coefficient of static friction between the

    asked by Devon
  75. World History

    How did religion and trade connect Africa to a larger world; with what results?

    asked by Lala
  76. 8th Grade Math

    *I NEED THESE IN ALGEBRAIC EXPRESSIONS! 1.) The larger of two numbers is 1 less than 3 times the smaller. Their sum is 63. Find the numbers. 2.) Find two numbers whose sum is 92, if the first is 4 more than 7 times the second. 3.) The sum of two numbers is

    asked by Disha
  77. Finance

    Sauerfood company has decided to buy a new computer system with an expected life of 3 yrs. the cost is 150,000.the comapny can borrow $150,000 for 3yrs at 10% annual interest or for one yr at 8% annual interest. How much wld sauer save in interest over the

    asked by Nancy
  78. PHYSICS

    I don't know where to start solving this question. Please help! A 320 kg piano slides 3.7 m down a 32 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is

    asked by MegP
  79. chemistry

    1. In standard column chromatography, it is better to change from a nonpolar solvent to more polar solvent. What are some disadvantages if the reverse is done? 2. what would happen if air bubbles were trapped in the adsorbent in column chromatography? is

    asked by Anonymous
  80. chimestry

    more volume of NaOH means more moles of NaOH (volume * molarity = mole ; molarity=constant) , more moles of NaOH means more grams and mole of HCl and more grams and/or mole and/mass of M2CO3 (note that they are both on the same side of the reaction) now

    asked by fred
  81. help physics

    the earth (mass=5.98x10^24kg) rotates around the sun in a orbit that is approximately circular, with a radius of 1.5x10^11m find the orbital speed of the earth around the sun

    asked by peter
  82. physics

    What are the three longest wavelengths for standing sound waves in a 126-cm-long tube that is? (a) open at both ends and (b) open at one end, closed at the other?

    asked by lizz
  83. Writeacher

    To earn the appreciation of honest critics and endure the betrayal of false friends; To follow the way your honest critics want you to trail and change their outlook about you. To suffer the pain your false friends give you from within, but don’t let it

    asked by Angelina
  84. Chemistry

    Calculate the change in heat when 3.05g of water vapor (steam) at 100.0 degrees celsius condenses to liquid water and then cools to 18.50 degrees celsius.

    asked by Jess
  85. Physics

    The karat is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. An alloy that is one karat gold contains a weight of pure gold that is one part in twenty-four. What is the volume of gold in a 20.0-karat gold

    asked by Sarah
  86. Chem

    What volume do 3.8 x 10^22 molecules of NO2 gas occupy at STP?

    asked by Dawn
  87. pre algebra

    train A leaves a station at 1:15 PM,traveling 60 mph.Train B leaves the same station, in the same direction as train A,15 minutes later.If train B travels 90mphm when (clock time)will train B catch up to train A and how far down the track does this occur?

    asked by mary
  88. college algebra

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

    asked by samantha
  89. Speech

    hi. I need help writing a speech!! I need to write a speech about the Civil War. Please help!! At least get me started?!

    asked by Erin
  90. English

    1. What do your parents want you to become? 2. What do your parents want you to be? 3. What do your parents want you to do? 4. What do your parents want you to do in the future? - They want me to become a public prosecutor. (What is the suitable question

    asked by rfvv
  91. english

    Somberness is a mood.?

    asked by danny
  92. physics

    A constant 6.0N net force acts for 4.0 s on a 12 kg object. what is the objects change of velocity

    asked by Anonymous
  93. geometry

    draw a rectangle in the following grid that has a perimeter of 14 units and an area of 12 square units

    asked by alla
  94. English

    1.The hikers are ready for a break. 2.Yesterday we rode our bikes through the park. 3.That store has something for everyone. 4.Students from both South America and North America attended the meeting. 5.According to the map, Tony's farm is just ahead.

    asked by Chris
  95. chemistry

    Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 215 mL of coffee from 25.0 ^\circ \rm C to 62.0 ^\circ \rm C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184

    asked by Dolapo
  96. statistics

    an insurance company estimates 40 percent of its claim have errors. The insurance company wants to estimate with 90 percent confidence the proportion of claims with errors

    asked by Anonymous
  97. geometry

    What type(s) of quadrilateral has only rotational symmetry?

    asked by John
  98. chemistry

    A sample of gas is at a pressure of 1 atm , a volume of 1 L , and a temperature of 25 degrees celsius. What would happen to the pressure if the volume were reduced to 0.5 L and the temperature increased to 250 degrees celsius?

    asked by Anonymous
  99. physics

    You have probably seen films of astronauts floating weightless in orbiting satellites. People often get the idea that the astronauts are weightless because they are so far from the gravity of the earth. Let us see if that explanation is correct. Typically,

    asked by steph
  100. Chemistry

    What quantity of heat (in joules) is transferred when 25.0 g H2O(g) at 125C is converted to H2O at 35.0C

    asked by Jill
  101. Writeacher

    To earn the appreciation of honest critics and endure the betrayal of false friends; To follow the way your honest critics want you to trail and change their outlook about you. To suffer the pain your false friends give you from within, but don’t let it

    asked by Angelina
  102. physics

    A Pyrex flask in a refrigerator at -8 degrees Celsius is filled to the top and holds exactly 1000cm^3 of ethyl alcohol. If the refrigerator fails, how much alcohol spills by the time the temperature reaches 22 degrees Celsius? The coefficient of volume

    asked by Farah
  103. physics

    Compressing gases requires work and the resulting energy is usually converted to heat; if this heat does not escape, the gas's temperature will rise. This effect is used in diesel engines: The compressed air gets so hot that when the fuel is injected, it

    asked by Ashleigh
  104. ethics question

    If I am in an accident and taken to a hospital by ambulance does HIPPA prevent the release of my medical and prescription history? What does HIPPA do there: protect me or possibly cause me harm?

    asked by Anonymous
  105. Statistics

    With a known population mean of 100, and a known standard error of the mean of 7.5, what is the probability of selecting at random a sample whose mean is 110 or greater? I need help getting this started, thanks

    asked by Bee
  106. math

    If the ratio of onions to cilantro is 4:3 and I'm using 2/3 cup of onions, how much cilantro will I need?

    asked by KC
  107. Math!!!

    angle x is in the second quadrant and angel y is in the first quadrant and angle y is in the first quardrant such that sin x=5/13 and cos y = 3/5. Determine and exact value for cos x.

    asked by Anonymous
  108. Chem 110

    Calculate amount of milliliters of 2.0 M HCl needed to neutralize 0.15 mol of NaOH

    asked by Matilda
  109. spanish

    THE ANSWER IS BEFORE THE NUMBER! f1. A boot verb is irregular A in four subjects B in two subjects C in three subjects D in one subject E in five subjects F in all subjects b2. Jugar is usually followed by which preposition before a sport or game? A de B a

    asked by whitney
  110. Science

    I conducted an experiment of the heat of combustion for three alcohol fuels, methyl, propyl and ethyl. The results were: Methyl - mass before was 231.81g temp of water before heating was 15 deg c. temp of water after heating was 40 deg c. mass of methyl

    asked by Paul
  111. phy

    why archimedes principle lab has more percentage errors or discrepancy than expected?

    asked by mas
  112. Economics

    Ashley is currently consuming 10 hot dogs and 8 hamburgers a week. The last hot dog she consumed yielded 20utils while the last hamburger she ate gave her 25utils. If hot dogs cost $2 and hamburgers cost $2.50, is Ashley consuming the correct quantities of

    asked by Leon
  113. Physics

    A model rocket builder has constructed a rocket of total mass of 1.0kg. The rocket must achieve a speed of 300m/s 5seconds after vertically leaving the launch pad. A) What acceleration and net force is required? B) What thrust must the motor have to

    asked by Cole
  114. Introduction to ICD Classification and Reimburseme

    The Internet has become a very popular research tool for patients to research different health care conditions and possible treatment options. Now, more than ever, patients are becoming more informed of their medical conditions from sources other than

    asked by Tamara
  115. Physics

    a book weighs 4 N. When held at rest in your hands, the net force on the book?

    asked by meghan
  116. math

    how to devide 34/123.08

    asked by matt
  117. physics

    how high above the surface of the Earth would an object need to be for its weight to be half its weight on the surface?

    asked by Archie
  118. Calculus 1

    Find the most general antiderivative of the function. Use C for any needed constant. f(u) = (u^4 + 7 sqrt(u)) / u^2 F(u) =

    asked by Zack
  119. english

    Write five grammatically correct sentences about the role of time management in an academic environment, in which you correctly use a different verb tense

    asked by eboni
  120. English

    is this a run-on sentence? Niabi play both the oboe and the piano and plays them well.

    asked by Alayasia
  121. statistics

    Suppose that a department contains 8 men and 20 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men?

    asked by scott
  122. chemistry

    How many grams of NaNO3 are required to saturate 54 grams of water at 20 C( show steps )

    asked by Ryan
  123. Math

    Word Decimal fraction 50 .50 1/2 hundredths 20 .20 1/5 hundredths 25 .25 1/4 hundredths 75 .75 3/4 hundredths 60 .60 3/5 hundredths Am I right???

    asked by Erin
  124. Physics - Hydrogen Emission spectrum

    a) Describe the emission spectrum of a hydrogen discharge tube b) Explain why different color lines appeared in different position in the spectrum. Use a suitable atomic model to help construct your answer. c) Explain how do you decide if the lines

    asked by Farah
  125. math

    A salesperson receives 5.4% commission. On one sale, she received $6.48. What was the amount of the sale?

    asked by lilly
  126. math

    According to the U.S. Census Bureau in 2009 there were 21,854,374 veterans in the United States. Veterans of the Korean War accounted for 12.4% of that total, while 10.7% were veterans of World War II. What is the positive difference between the numbers of

    asked by help
  127. Soc.331

    Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most effective social welfare organizations today in your opinion, and why?

    asked by Barbara
  128. 6th grade

    triangular prism length 30 cm, height 20 cm, volume 6,000 cubic cm, what is the width?

    asked by Ken
  129. Science

    1. Explain the SIMILARITIES between ice cores and tree rings. If possible:{use 2 to 3 sentences}. ,Thanks.

    asked by Sherkyra8456
  130. French

    Could you check these thanks. Part 1: Directions: Ask questions in 2 other ways by replacing the underlined words with où, d'où, comment, qui, avec qui, quand, à quelle heure, combien de, pourquoi, quoi/que/qu'est-ce que. (Note: UNDERLINED WORDS WILL BE

    asked by Missy
  131. 8th grade math

    Can you please check my answer? Marcia wants to make muffins and needs 3/4 cup of a cup of sugar. She discovers, however,that she has only 2/3 of a cup of sugar. How much more sugar does she need? my answer: 1/12 of a cup

    asked by Elizabeth
  132. math

    tree casts a shadow 32 feet on the ground. If the distance from the end of the shadow to the top of the tree is 40 feet, how tall is the tree?

    asked by mitch
  133. physics!!!

    A copper rod is given a sharp compressional blow at one end. The sound of the blow, traveling through air at -2.79 degrees Celsius, reaches the opposite end of the rod 9.39ms later than the sound transmitted through the rod. What is the length of the rod?

    asked by Ashleigh
  134. Chemistry

    Hydrogen peroxide decomposes into water and oxygen. What amount of hydrogen peroxide is necessary to produce 1 kg of oxygen

    asked by Tarkan
  135. Graph help!

    Sketch y= -(1/4) (2)^(x-4)+5 I know that the basic equation is y=2^x so is the graph translated 4 units right, vertically stretched by a factor of (1/4), reflected on the x-axis and translated up 5?

    asked by Ali
  136. Social Studies

    Is Mid-Autumn Festival in China is similar to Thanksgiving Day in America? And when is Mid-Autumn Festival?

    asked by rfvv
  137. chemistry

    Give the formula of the conjugate base of each of the following acids: a.) citric acid b.)oxalic acid c.)dihydrogen phosphate ion d.)phenol

    asked by jj reddick
  138. Physics

    Read the activity 2-1:Force and Pressure in the lab manual (pages 167-168). As described in the manual, consider a 10 cc syringe is connected to a 50 cc syringe. Information of the syringes are as follows: (mass of 10 cc piston) = 16 g (mass of 50 cc

    asked by Anonymous
  139. 11th grade chemistry

    a vessel contains 12 gm of methane gas at t degree celcius temp. and 1 atm. pressure. when the temp. is increased by 10 degree celcius at the same volume, the pressure increases by 10%. calculate the volume and initial temp.

    asked by help
  140. Math

    A computer company gives a discount of 10% off of the marked price on a new piece of software. If it makes a profit of 11% on this sale, what percent does the marked price exceed the cost price?

    asked by von
  141. chemistry

    Can you tell if I'm correct. Which combination in titration has ph=pka and buffer region strong acid-strong base- no to both strong acid-weak base- yes to both weak acid-strong base- yes to both weak acid-weak base- I'm not sure about this one. Can anyone

    asked by poet
  142. ENGLISH

    I basically have to put this poem in my own words. Some sentences I don't really understand, so it would be a great help to me if you could tell me what they mean. I have to rephrase each sentence. After the semicolon, a new sentence begins. Here is the

    asked by Angelina
  143. 6th grade math

    use compatible numbers to estimate the quotient: 7.35/6 answer: 1.20 is this wrong if so what did i do wrong? Thanks

    asked by Meg
  144. STATISTICS PLESE HELP!!

    studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. an important study of the Boston water supply system showed that the distribution of lead content readings for individual water

    asked by Courtney
  145. psychology

    As an undergraduate Native American college student you have been selected from a national pool of applicants to interview President Obama. Your scheduled interview is to be no longer than 10 minutes. The interview is to be conducted on a Tuesday morning

    asked by lynne
  146. language arts

    what is Gary Paulsens political view? Republican or Democrate or Liberal?

    asked by hunter
  147. chem

    the following procedure may be used to determine the density of a granular material. A sample of a granular material weighing 4.35 grams is placed in a 15 mL flask and then completely filled with benzene (liquid) the density of which is .879g/cc. The

    asked by B.o.B
  148. math

    explain why estimating before you divide helps you place the first digit in the quotient

    asked by julie
  149. Physics Grade 11

    I need Help answering this question what equations do i use from Newton's Law and how to solve it. I Have a test on Wednesday and im lost please help.!!! A piano is to be slid across the floor.IT had a mass of 450 kg. A) Calculate the normal force

    asked by Hena
  150. 12th grade

    How many moles of atom are in 47 atoms Ba?

    asked by stef
  151. math

    kyle had 36 books in hislocker. some were library books, some were textbooks, and the rest were telophone books. the number of library books and textbooks combined equal twice the number of textbooks. the number of textbooks and telephone books combined

    asked by Katherine
  152. Chemistry

    How do I set up my equation to determine what the pH will be when the concentration of Fe^3+ is reduced to 10^-7? The previous part of the question had me find what the pH would be for the Fe(OH)3 to precipitate at 0.20 M. which i found was 1.37

    asked by Carl
  153. check math question

    Given y=2^x Predict the equation for the graph that has been reflected in the y-axis, given a vertical stretch by a factor of 5, translated 2 units right and 5 units down. I have: y= -5 (2) ^ (x-2) - 5 Is this correct?

    asked by Ali
  154. Introduction to ICD Classification and Reimburseme

    Electronic medical records have been becoming increasingly common in the health care industry. As a result, the issues that surround the confidentiality of a patient’s medical record have come into question. Identify and discuss the major law that

    asked by Tamara
  155. Physics

    If you have a toy car how would you calculate the angle and length of a ramp to propel the toy car 8 ft. I would also the formula for gow much enurtia does it take to overcome friction relative to pull of gravity and outside forces

    asked by Trent
  156. algebra

    solve by using multiplication principle -3/7x=6/35 x=______________

    asked by thawk
  157. physics

    how high above the surface of the Earth would an object need to be for its weight to be half its weight on the surface?

    asked by Archie
  158. 11th grade physics

    how high above the surface of the Earth would an object need to be for its weight to be half its weight on the surface?

    asked by Archie
  159. Math 8th grade

    I NEED THESE IN ALGEBRAIC EXPRESSION!! The larger of two sums is 12 more than the smaller. Their sum is 84.Find the numbers. The sum of two numbers is 45. The first is 9 less than the second.Find the numbers. The second of two numbers is 5 more than twice

    asked by Disha
  160. algebra

    utah license plates have 3 numbers followed by 3 letters. how many different license plates of this kind can be made

    asked by Koray
  161. English, PLEASE HELP ASAP

    BOOK "O PIONEERS!" On pages 68-69, Alexandra and Carl Lindstrum have a conversation where they compare the different paths their lives have taken. At the bottom of page 68, the paragraph begins with Carl saying--“Freedom so often means that one isn’t

    asked by samantha
  162. Math

    An initial deposit of $35,000 grows at an annual rate of 7% for 23 years. Compare the final balances resulting from continuous compounding and annual compounding. We're supposed to use the equation A=P(1+r/k)^kt but I don't know what I'm supposed to use

    asked by anonymous
  163. 6th grade

    What is the volume of a chest that is 20 inches by 10 inches by seven and one tenth inches?

    asked by Molly
  164. English

    Is "sympatheticy" a word. I want to use a word like this. My sentence is... Blah Blah's character is determined by his willingness to work, his "sympatheticy" towards his son. Sounds like a word, but I don't know if it is. Thanks :)

    asked by CoolioMan
  165. mat 116

    solve for x using the addition principle. x + 6 = -8 What is the solution for x? Thanks kindly

    asked by cindy
  166. English

    1.The Reverend Jesse Jackson spoke at the convention. 2.I wear heavy wool socks under my hiking boots. 3.Joel and Tina are participating in the Special Olympics. Identify prepositional phrase, tell if adj or adverb phrase then word that phrase modifies

    asked by Chris
  167. math

    Nineteen members or 38% of the ski club are going on ski trip. Find the total number of members in the club?

    asked by lilly
  168. algebra

    7/3x + 1/3x = 4x + 48/3 + 8/3x This one is way complicated. Please help me!!! Thank you so much

    asked by thawk
  169. English

    "But I'm not a gardener. I'm a carpenter," Grandpa said. "It's easy, Grandpa. These green things are weeds. Do not touch the white flowers, " Franscisco said. (What does 'it' refer to in the passage?)

    asked by rfvv
  170. 1st grade

    What is a sentence a 1st grader can write using the word "past"?

    asked by philesha
  171. math

    1.4/5+2+5= 2.7/8-3/8= 3.y/9-2y/9= 4.9x/6-5x/6= 5.x/6+2x/6= 6.3x/3x-1-1/3x-1= 7.7a/4-3a/4= 8.4/x-y-2/y-x= 9.5/x-2/x= 10.a/a-2+1/2-a

    asked by reynalyn villanueva
  172. algebra

    solve using the addition principle x + 3/13 = 7/13 what is the solution for x

    asked by thawk
  173. chemistry

    A student prepares a 2M solution of copper sulphate. She adds 17 mL of the solution to a 100 mL volumetric flask and dilutes it up to a final volume of 100 mL with water. What is the final molar concentration of the copper sulphate? How many moles of

    asked by flona
  174. english

    Write the nouns and pronouns used as adjectives and the noun each one modifies. 1 the wings of a duck are small for its body weight.

    asked by lily
  175. history

    create a collage that shows how greek culture is reflected in modern-day society.

    asked by ray
  176. MATH-STUCK :-(

    I really need help factoring these special Trinomials. This question really puzzled me. I thought I had it correct, but when I checked the answer at the back of the book, I was wrong, and so I would like to know what was it that I had done wrong. This was

    asked by Anonymous
  177. Organic Chemistry Lab

    A sample of hexane and octane is injected into a gas chromatograph equipped with a nonpolar column. Predict which one will have the shorter retention time.

    asked by Jeanne
  178. Spanish 1

    21. Veronica es ______. a. graciosa, generosa y prudente b. perezosa, tacaño y desordenado c. deportista, paciente y artístico d. serio, callado y amable A? 22. Yo _____ amable. a. me llamo b. soy c. estás d. me gusta C? 24. Yo ____ en casa a. ayudar b.

    asked by mysterychicken
  179. Maths

    9. consider the function y=e^-x sin x where pie < x < pie find dy/dx which is e^-x(cos x - sin x) show that at stationary points, tan x = 1. - I have done this part I don't understand this part: How do I do this: determine the co-ordinates of the

    asked by Ronald
  180. Englsih

    1. She didn't go to a dentist. 2. She didn't go to see a dentist. 3. She didn't go to the dentist. 4. She didn't go to the dentist's. 5. She didn't go to the dentist's office. (#4 is from #5, right? Does #3 mean "she went to the specific dentist whom she

    asked by rfvv
  181. mat 116

    -8x-27=-32 1/3 Thank you for your help.

    asked by cindy
  182. Math Graph

    Sketch y= -(1/4)(2)^(x-4)+5 by first including a table describing its major features.

    asked by Ali
  183. Physics Urgent

    A container of volume V = 103 cm3 has a mass of 30.0042 g when evacuated. When the container is filed with an unknown gas of pressure p = 4.72 atm at temperature T = 20oC, the mass of the system increases to 30.9508 g. Assuming that the unknown gas behaves

    asked by Sydney
  184. algebra

    4x-8=12+6x Please help! Thankss!

    asked by thawk
  185. general ethics question

    Some industries and businesses have their own uniquely applicable laws and standards. In this thread, let's share our own experiences with industry standards. What field are you in? Are there specific laws and standards associated with this industry? Why

    asked by Anonymous
  186. biology

    wherever in the universe life exists, some of those life forms must be colored. why would a scientist make this statement.

    asked by john
  187. geography

    What is the name of the large mountain range in South America? I know the longest mountain range is The Andes so can I assume this is the answer my teacher is looking for??

    asked by Reed
  188. physics

    In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 170 m. The average mass of each skier is 65 kg. What is the average power provided by the tension in the cable pulling the lift?

    asked by michelle
  189. math

    Estimate by rounding: -to the nearest thousand: 9637+6387+662+403=17089 going to nearest thousand would make this 17000 am i right?

    asked by m
  190. Physics Urgent!!!!!!

    We consider an ideal gas of molar mass M = 16 g/mol at +10oC. What is the pressure of the gas if its density is 1.16 kg/m3 ?

    asked by Sydney
  191. Geometry

    Which of the following equals (-4) A(-4) . (1-4)

    asked by Mara
  192. MATH-Stuck :-(

    I really need help factoring these special Trinomials. This question really puzzled me. I thought I had it correct, but when I checked the answer at the back of the book, I was wrong, and so I would like to know what was it that I had done wrong. This was

    asked by Anonymous
  193. Music

    European countries used different styles of colonial rule in the Caribbean. How did differences in colonial rule affect musical development in the Caribbean? Please help me with this question, I am getting really frustrated and don't know how to answer it.

    asked by Jon
  194. physics..HELP??? please

    in physics terms what does vacuum mean?? i thought they meant a vacuum sweeper?? huh? The question is " The same object is dropped in a vacuum and then in air. Whaich of the parameters( distance,velocity,acceleration) vary and which remain constant during

    asked by bobbi
  195. physics

    A daredevil is shot out of a cannon at 43.0° to the horizontal with an initial speed of 25.0 m/s. A net is positioned a horizontal distance of 50.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the

    asked by alecia
  196. 11th grade

    What is the acceleration on planet X, if a 1.5 kg object weighs 3.45 N on plantet X?

    asked by Anonymous
  197. 11th grade

    An 88g arrow shot with Force=110N. Distance traveled is 78cm. What is speed of arrow?

    asked by Jalissa
  198. orchestra

    what are the bow sings

    asked by Anonymous
  199. Pys. Science(check answer)

    .263degrees C

    asked by Staci
  200. calculus

    Calculate the integral from 0 to 4 of |x^2 - 1|. Thanks!

    asked by Jp
  201. Math

    How would you solve this equation for x? y= -4x^3+15x^2-1

    asked by John
  202. math

    the curve y=x^2 - 3x - 4 cross the x-axis at P and Q. the tangent to the curve at P and Q meet at R. the normals to the curve at P and Q meet at S Find the distance RS?? please help i have honestly tried and have had no luck :)

    asked by Jack
  203. French(easy question)

    Translate all this french into english. I did all of it at the bottom. Please do it as well so I can check my answers. Check my answers as well. Thanks. On passe un bon film au Gaumont. On y va? Pas possible. J'etudie pour l'interro, demain. D'accord.

    asked by Pratigya
  204. MATH/208 University of Phoenix

    I need the answers for week three, can anyone help?

    asked by Stacy
  205. Physics

    A car traveling initially at 7.49 m/s acceler- ates at the rate of 0.743 m/s2 for 5.41 s. What is its velocity at the end of the accel- eration?

    asked by Kaitlyn
  206. Physics

    A satellite has a mass of 5600 kg and is in a circular orbit 3.70*10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20*10^6 m. What is the true weight of the satellite when it is at rest on the

    asked by Ashley
  207. 8th grade math

    Can you please check my answer? Selena received $42 commission for selling a computer for $1400. What percent is her commission? my answer: 3%

    asked by Elizabeth
  208. algebra

    If the first and third of three consecutive odd integers are added, the result is 69 less than five times the second integer. Find all three integers.

    asked by franklin
  209. Maths

    dy/dx of tan x is sec^2 x is there another way of writing sec^2 x?

    asked by Ronald
  210. English

    I basically have to put this poem in my own words. Some sentences I don't really understand, so it would be a great help to me if you could tell me what they mean. I have to rephrase each sentence. After the semicolon, a new sentence begins. Here is the

    asked by Angelina
  211. 3rd grade

    when you put together unequal groups can you add

    asked by cheyenne
  212. Geometry

    The midpoint of line AB has coordinates of (5,-1). If the coordinates of A are (2,-3), what are the coordinates of B? Any help is appreciated!

    asked by Gabs
  213. physics

    a wheel of radius R rotates making f revolutions per second. the quantity f is know as the frecuency of the motion. show tha 1/f is the time to complete one revolution, called the period T of the motion. show that the centripetal acceleration of a point at

    asked by katy
  214. English

    That's the price of life. (When do we use this expression? What does 'price' mean in this sentence?)

    asked by rfvv
  215. Physics - Double slit experiment

    For a double-slit interference, what would happen to the distance between the bright fringes if you: a) Decreased the distance between the slide and the screen b) Increased the separation between the slits c) Decreased the distance between the laser

    asked by Farah
  216. History

    I'm confused...how did the French financially profit from the Concordat of Bologna? I understand that they gained political power, but how did this increase their wealth?

    asked by Shelby
  217. physics help!!

    a wheel of radius R rotates making f revolutions per second. the quantity f is know as the frecuency of the motion. show tha 1/f is the time to complete one revolution, called the period T of the motion. show that the centripetal acceleration of a point at

    asked by katy
  218. Physics - Hydrogen discharge tube

    a) Describe the emission spectrum of a hydrogen discharge tube b) Explain why different color lines appeared in different position in the spectrum. Use a suitable atomic model to help construct your answer. c) Explain how do you decide if the lines

    asked by Farah
  219. math

    A square shaped park measures 3/5 mile long on each side. What is the area of the park?

    asked by marty Martinez
  220. 3rd grade

    using four different digits, what is the least sum you can get when you add two 2-digit numbers

    asked by daniel
  221. Math homework, check+ Help please? :)

    Here is a picture of what I'm doing so that the helpers will explain it better: oi54.tinypic(Dot)com/k6vjd.jpg What I don't understand is How would you set it up and solve this? Could someboy help me? Thank you.

    asked by Allyson
  222. Chemistry grd 11

    Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

    asked by Tarkan
  223. Econometrics

    The GPA in an econometrics exam was normally distributed with a mean value of 80. In a sample of 20% of it was found that GPA was less than 75. Can you tell what the s.d. of the GPA was?

    asked by Anonymous
  224. Physics

    A 25.0 Kg sled with a rope attached is being pulled down a slope with a 21 degree angle. There is an 8 Kg box on the sled.The tension gradually increases. At what value of tension does the box slip?

    asked by Janice
  225. math

    Describe the steps to graph the direct variation equation y = – 3x. In the formula d = rt, what do each of the letters stand for and how do they relate?

    asked by sakovia
  226. Biology

    Describe the ecosystem’s population growth and regulation through community interactions.

    asked by Anita fields
  227. geography

    Name the gulf located between the countries of Sweden and Finland? The Gulf of Bothnia or the Gulf of Bothemia. I need help!!!!!!!

    asked by Reed
  228. Biology

    Action potentials: Tick the box next to the ONE answer you believe is TRUE. A. compound action potentials increase in amplitude as the stimulus strength is increased. B. ONE action potential takes in the order of 1-2 seconds to be observed. C. generation

    asked by Jack
  229. math

    Convert the base 10 number in the indicated base. 40 to base 2 I get so confused on how to do this.

    asked by m
  230. chemistry

    How many formula units is a 125.8g of Nacl

    asked by jas
  231. Physics Urgent

    A container of volume V = 103 cm3 has a mass of 30.0042 g when evacuated. When the container is filed with an unknown gas of pressure p = 4.72 atm at temperature T = 20oC, the mass of the system increases to 30.9508 g. Assuming that the unknown gas behaves

    asked by Sydney
  232. Physics earth & Space

    toward what direction, north or south would you look to the sun at noon on june 21-22 if you lived at the following latitudes

    asked by Robert
  233. Cal

    How do you find dy/dx by implicit differentiation with respect to x? x^3 + y^5 = 1

    asked by Annie
  234. Graphing

    Sketch y= -(1/4)(2)^(x-4)+5 by first including a table describing its major features.

    asked by Ali
  235. chemistry

    A tragedy hits a small town. The elementary school explodes into flames trapping several classes of second graders. Because the volunteer fire department will take too long to get there, teachers and classified staff remove all the children to safety

    asked by phil
  236. math

    Three numbers in an arithmetic sequence sum to six. If you add 1 to the first number, 2 to the second number, and 5 to the third number, the result will be a geometric sequence. What are the original 3 numbers?

    asked by Katie
  237. 3rd grade

    How can estimating help you add two-digits numbers?

    asked by javon
  238. math

    kyle had 36 books in hislocker. some were library books, some were textbooks, and the rest were telophone books. the number of library books and textbooks combined equal twice the number of textbooks. the number of textbooks and telephone books combined

    asked by Katherine
  239. English

    Can you tell me if the following sentences are possible? Thank you very much. 1) I get a lift with my dad on his motorbike. My dad gives me a lift on his motorbike. 2) I ride my motorbike to school. It takes me ten minutes to ride my motorbike to school.

    asked by Franco
  240. 8th grade Math

    Can you please check my answers? Wally ordered a pizza. He ordered 4/9 of the pizza with sausage, 1/5 of the pizza with extra cheese, and the rest of the pizza with bell peppers. How much of the pizza had bell peppers on it? My answer: 29/45 of a pizza

    asked by Elizabeth
  241. French

    what does "on passe" mean in French?

    asked by Pratigya
  242. English/Literature

    Death of a Salesman - Are there any sumbols that may have cultural, political or religious references in the play? Any direction you could provide would be greatly appreciated. thanks

    asked by max
  243. history-current events

    what are some economic, social, political, and other problems in Cuba did historical events lead to these problems? and what was the influence of imperialism and globalization on Cuba? please help!!!!! thanks

    asked by amy
  244. 3rd grade

    how to classify sentence and finding the complete subject and complete predicate?

    asked by Anonymous
  245. math

    the curve y=x^2 - 3x - 4 cross the x-axis at P and Q. the tangent to the curve at P and Q meet at R. the normals to the curve at P and Q meet at S Find the distance RS?? please help i have honestly tried and have had no luck :)

    asked by Jack
  246. Chemistry

    Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

    asked by Tarkan
  247. PSYCHOLOGY

    Summarize the multi-factorial model and how it relates to the diagnosis of illnesses

    asked by EVE
  248. 10th grade

    why does Henry believe that compromise with the British is not a workable solution?

    asked by natalie
  249. grammar

    Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence.

    asked by Johanna
  250. algebra

    Please help!!! Determine whether -10 is a solution of the equation 6(x-2)= -70 Is -10 a solution? Thanks for your help

    asked by thawk
  251. english

    Help Understanding A journey to the center of the earth by: Jules Verne. 1.)What problems do each of the 3 characters face within themselves, and how do they end up resolving each of there problems? 2.)What are 4 of the most important occurences in the

    asked by Rob16
  252. math

    suppose a parallelogram has an area of 84 square units. Describe a triangle related to this parallelogram, and find the triangle's area, base, and height.

    asked by jasmine
  253. 8th grade math

    A company's cost of doing business in a recent month was $18,000. Their revenue on sales for that month was $27,000. What percent profit as a percentage of sales did the company earn? my answer: 33 1/3%

    asked by Elizabeth
  254. 8th grade math

    A company reported that it made a profit of 8% as a percentage of sales and that its sales revenue was $25,000. How much profit did the company make? my answer: $2,000

    asked by Elizabeth
  255. ????

    " Today I will be informing you abot the Civil War. The war the tore friends and families apart and slavery. " -Erin Is that a good intro for a 4-H project intro??

    asked by Erin
  256. 11th grade physics

    if action and reaction are always equal and opposite, why don't they always cancel each other and leave no force for acceleration of the body?

    asked by help
  257. grammar

    Could you give me some singular nouns please?

    asked by Anonymous
  258. English

    1. Chris can do the job, isn't he? 2. Chris can do the job, isn't she? (Which tag question is right? Are both OK? Is Chris used as a male name or female name?)

    asked by rfvv
  259. STATISTICS HELP

    The lifetime of a disk drive head is normally distributed with a population mean of 1000 hours and standard deviation of 120 hours. Determine the probability that the average lifetime for 9 disk drives will exceed 940 hours. Need to see work!

    asked by Heather
  260. Psychology

    Are there any book or websites that help me answer this question... Has Britains obsession with celebrity culture gone too far?

    asked by Ronald
  261. Math

    James has an assigned seat for his flight to Denver.The seats on the plane are numbered 1-49.James's seat number is an odd number greater than 10 that is a factor of 100.What is his seat number for the flight?

    asked by Maria
  262. English - examples of socio-cultural norms

    Please give me loads of examples of socio-cultural norms

    asked by Farah
  263. Physics - Double slit experiment

    For a double-slit interference, what would happen to the distance between the bright fringes if you: a) Decreased the distance between the slide and the screen b) Increased the separation between the slits c) Decreased the distance between the laser

    asked by Farah
  264. Finance

    Dave and Marlene live in the boston area. two choices 1) short term trading and bond swap what basic trading principles is involved?

    asked by Terry
  265. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate

    asked by Anonymous
  266. Jacques Cousteau

    The Antartica is the vast source of cold on our planet,just as the sun is the source of our heat, and it exerts tremendous control on our climate. How would I paraphrase that

    asked by Anonymous
  267. chemistry

    a sample of hexane and octane is injected into a gas chromatograph equipped with a non-polar column. predict which will have the shorter retention time

    asked by Anonymous!
  268. English

    1. He is an early bird. 2. He is a morning person. 3. He is a late bird. 4. He is an evening person. (Does #1 mean #2? The opposite of #2 is #4, right? What about #3? What is the opposite of #1?)

    asked by rfvv
  269. i am sorry i wrote it wrong

    |x-4|-6 answer:x=10,-2 i need help on this one please: |5x+3|-4 is greater than or equal to 9

    asked by check this please!!! only 1 question!!!
  270. math

    N=9+x+y-z Where x,y,z are variable representation of some digit (0 to 9) Alok is like to maximize N while Bhanu Is like to minimize it towards this end ,Alok chooses a single digit number and bhanu substitute this for a variable of her choice (x,y or

    asked by reenu
  271. Chemistry grd 11

    Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

    asked by Tarkan
  272. Anniversary

    Hello Jiskha! Today is November the 8th and this is my 1-year anniversary on this website. I'd like to thank all the tutors who have helped me since November 2009 and I look forward to more assistance in the future! Sincerely, AL 92

    asked by AL 92
  273. algebra/geometry please correct me

    You need to make a soda can with a volume of 29 cubic inches. Find the surface area. calculate the following: a) How much material is needed if the can's radius is 2 inch? Answer with the help of Reiny, but doing it with a different radius to make sure I

    asked by Nancy
  274. english

    Please correct my english! Hello everybody! I'm not an english speaker, but currently study english at school. Our homework is to write an english dissertation. But before it, we should give the teacher the detailed plan. It's noted, so I will be very

    asked by Jack
  275. algebra

    cubed square root 16x^2y over cubed square root 2xy^2

    asked by Candice
  276. chemistry

    How many H2O molecules are formed when 14 methanol molecules react?

    asked by Kaley
  277. Algebra

    4a/16 + a/16 =?

    asked by Bob
  278. algebra

    Express the amount of material needed to make a can as a function of the radius. In other words, find a function A(r) such that A represents the surface area (in square inches) of the cylinder and r is the radius (in inches). my answer (not sure) A(r) =

    asked by Nancy
  279. St. Martin

    A container of volume 20.5 cm3 is initially filled with air. The container is then evacuated at 0oC to a pressure of 19 mPa. How many molecules are in the container after evacuation if we assume that air is an ideal gas?

    asked by Tanya
  280. 8th grade

    How do you calculate displacement and distance and velocity? (science)

    asked by Caleb
  281. 8th grade

    How do you calculate the slope of a line?

    asked by Caleb
  282. Kelsie

    name the element wsith the atomic number z= 15 and the atomic mass number 31. How many electrons does the neutral of this lement have? How many neutrons does the neutral atoms of this element have? I know the element with the atomic number of 15 and atomic

    asked by CHEMISTRY
  283. HRM

    How do the human resources assistance plan and aids fit into a strategic plan for a probation officer

    asked by Pam
  284. math

    Base 10 gets me so confused. How to convert 40 to base 2

    asked by m
  285. physics help

    The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop. (a) What is the time interval during which a vaulter who has

    asked by john
  286. english

    rhymes and plural and possessive nouns for the jumps of lambs

    asked by Roger
  287. biology

    The plasma membrane: Tick the box next to the ONE answer you believe is TRUE. A. can generate action potentials in excitable cells B. may burst in hypertonic extracellular solution C. can contain carbohydrates which confer ion permeability. D. is made up

    asked by Lancer
  288. math

    A solution of alcohol and water is a% alcohol where a = 40. The solution is found to contain 32 milliliters of alcohol. How many milliliters total (both alcohol and water) are in the solution?

    asked by Sabre
  289. science

    If it happens that a neurotransmitter binds to a receptor site and produces a negative voltage shift, the probability: that the neurons are densely connected decreases. of an excitatory response increases. that the receiving neuron will fire decreases.

    asked by phil
  290. CHEMISTRY

    I put down all the info that I found but I cant figure out the questions 1 & 2 at the bottom!! Empty Calorimeter- 11.6 g Room temp - 21 degrees celcius Three different experiments of 50mL 1(M) HCl reacts with 0.15 g Mg, 0.25g Mg, and 0.35g Mg respectively.

    asked by Anonymous
  291. Math

    What is the value of the expression below? 3•(-4)^2

    asked by Denis
  292. geography

    Which hemisphere is larger, The Eastern or Western? Can you please give me a web site to look at for this answer. I find it to be that they are the same size, but in terms of landmass the Eastern hemisphere is larger. Is that correct?

    asked by Reed
  293. English

    Posted by rfvv on Monday, November 8, 2010 at 7:14am. 1. He is an early bird. 2. He is a morning person. 3. He is a late bird. 4. He is an evening person. (Does #1 mean #2? The opposite of #2 is #4, right? What about #3? What is the opposite of #1?)

    asked by rfvv
  294. English

    Can you help me check these sentences, please? Thank you very much for your invaluable help. 1) When did the fire break out (?) in London? 2) The old cathedral was badly damaged by a fire which broke out in a baker's shop in London. 2) What material was

    asked by Franco
  295. Science

    2. How are geologic and biologic evolution connected? What happens in geologic evolution that affects biologic evoulotuion? {Answer the 2 questions given + use complete sentences.}[make a long story short...]

    asked by Sherkyra8456
  296. math

    for the function f,y=f(x) is inversely proportional to x, where x>0. If f (3)=6 what is the value of f(2)?

    asked by Grace
  297. college

    Compare the event to one or more similar events. When comparing, use at least three comparatives and three superlatives.

    asked by Brandon
  298. eng3

    In 'Sinners in the Hands of an Angry God,' Edwards compares man's position to a?

    asked by Ariel
  299. math

    which number is least, which number is greatest 30%, 3/4, .34

    asked by christian
  300. geometry

    If an object is reflected twice over parallel lines, and corresponding points of the original and final translation image are 30 centimeters apart, how far apart are the parallel lines?

    asked by devona
  301. Algebra

    You need to make a soda can with a volume of 29 cubic inches. Find the surface area. calculate the following: a) How much material is needed if the can's radius is 1 inch?

    asked by Nancy
  302. chemistry

    What is the temperature of 0.65 mol of gas at a pressure of 1.1 atm and a volume of 11.2 L?

    asked by Anonymous
  303. Spanish 1

    12. María Elena es_____. a. gracioso b. atrevido c. tampoco d. seria D? 14. Me gusta ir____. a. en casa b. a mí c. a la escuela d. en el cine Can't decide between C and D... Thanks -MC

    asked by mysterychicken
  304. math

    if i where to pay you a penny a day n the second day i would double it n in the third day u double it again an so on .... how much would you have in a month (30 days )

    asked by KIIIMMMYYYYY
  305. Math(Please help)

    Show that (f X g)(x) = (g X f)(x) = x for f(x)= 3x-5 and g(x)= x+5 / 3 I have know idea how to do this.

    asked by Hannah
  306. algebra expressions

    sorry it was 5-1/3a a=-1

    asked by raul-6th grader
  307. Physics

    A 3200kg helicopter must accelerate up at 1.0m/s^2. What minimum lift do the rotors need to produce? Thanks for answering!

    asked by Liam
  308. calculus

    -x^4-3x^3+5x+6 Where does this function concave up and down? Thanks for your help!!!

    asked by Denzel
  309. math

    9-3r=14

    asked by cccc
  310. integrals!!

    Compute the value of the integral using geometry. integral from -4 to 1 of (2x +8)dx

    asked by Jason
  311. Physics Help!!!

    With the energy needed to warm up some amount of water from 26°C to 44°C, how high could you lift it?

    asked by Molly
  312. language arts

    what are three major parts of a summary?

    asked by ali
  313. Physics Help!!!

    The water in your bathtub is getting cold. You currently have 36 liters at 31°C. What is the new temperature after you add 10 liters of 70°C hot water? Degrees Celsius are entered as degC.

    asked by Ryan
  314. Math

    What is the function rule for input3, output3, input4, output5, input6, output9

    asked by Mariah
  315. business

    How is NAFTA positive for -US business and consumers? -US workers? -Foreign business and consumers? -Foreign workers?

    asked by Holly
  316. english

    We gathered all the tools and equipment we would need to. A. Change gathered to gather B. Delete the word to C. Add have after would

    asked by lilly
  317. Math

    f(x)= 4-x^2 and g(x)= sqrt (x) find the implied domain of fg(x) fg(x)= f(sqrt(x)) fg(x)= 4-(sqrt(x))^2 fg(x)=4-(sqrt x)(sqrt x) fg(x)=4-x domain= (x:x=all real numbers) Am I correct?

    asked by Jamie
  318. math

    13-6+2-15÷3=

    asked by isis
  319. math

    13-6+2-15÷3=

    asked by isis
  320. physics BASIC PLEASE HELP

    Calculations and Data: Angle: As measured by protractor:7.63 degrees As measured by using inverse sin:7.4 degrees Percent error: ((True value-experimental value)/true value))*100= ((7.4-7.63)/7.4)*100=-3.1081% Time: 1.53s 1.4s 1.53s 1.44s 1.47s Average

    asked by chris
  321. literature

    My professor asked us this questions. One has life-like experiences in ones dreams, but is still aware that these experiences are mere appearances and that the reality lies beneath. Nietzsche makes the assumption here that, when dreaming, one is always

    asked by john
  322. geography

    do you think having colonies decreased or increased the amount of conflict between European countries?

    asked by Anonymous
  323. Probability

    I need help calculating a c value such that f(x,y) is a probability density function. What makes a function a probability density function?

    asked by quentin
  324. 2nd grade

    It is greater tha 7 tnes and less than 8 tens. The number has 4 ones. Write the number word.

    asked by mary
  325. 7th grade math

    HOW DO YOU TURN 5/8 INTO A PERCENT

    asked by Daniel
  326. Media

    Hi, I am doing an paper on editors and their roles in broadcast. I wanted to get some ideas about how editors choose their lead story and why they are led to choose that story. Any ideas? thanks

    asked by Serena
  327. 7th grade math

    1/15 in percent

    asked by Daniel
  328. HSM/220

    detailing how a human service organization focused on providing job skills to high school dropouts would address the following: • Statement of opportunity • Impact of organizational structure • Community and environmental factors • Human resources

    asked by Terrie
  329. MATH

    Divide. Round to the nearest hundredth if necessary. 0.00829/0.003 my answer: 2.76 Is this correct

    asked by Meghan
  330. math

    x + 4 2/3 = 6

    asked by lilly
  331. math

    3/7 - 4/m

    asked by lilly
  332. math

    Write the negation of the following: Every rectangle with 4 equal sides is a square. A) No rectangle with 4 equal sides is not a square. B) Every square with 4 equal sides is not a square. C)Every rectangle with 4 equal sides is not a square D) No square

    asked by m
  333. ethics question

    i don't work, how should answer this: What field are you in? Are there specific laws and standards associated with this industry? Why are they in place? Are these laws and standards consistently followed?

    asked by Anonymous
  334. English

    1. I lied him that you were a fine gardener. 2. I lied that you were a fine gardener. (Are both grammatical?)

    asked by rfvv
  335. Physics Help

    A hot air balloon starts at its launching station and it goes at a horizontal speed of 2.7 m/s and a vertical wind of 1.1 m/s. Once it reaches an altitude of 202 m, it stays at that altitude for 10.3 s, which is when it drops a sandbag. How far will the

    asked by Kourt
  336. English

    1. A boy should be in school. 2. A boy should be at school. (Are both the same? Which preposition do we hae to use?) 3. Get in the truck! 4. Get on the truck! 5. Go in the truck! 6. Go on the tuck! (Can we use 'on' instead of 'in'? What about 'go' instead

    asked by rfvv
  337. history

    i need a thesis for a report about the problems in cuba, please help me!!! thanks sooo much!

    asked by amy
  338. English

    "I want you to weed the garden. I'll be back at three," the man said and drove away. It's gardening, Grandpa," Francisco said. (In this passage, what does 'it' refer to?)

    asked by rfvv
  339. algebra II

    find the area of a triangle fgh f(1,4) g(-2,-3) h(3,-2) using matricies

    asked by robert
  340. algebra

    -|x-4|-6 answer:x=10,-2 i need help on this one please: -|5x+3|-4 is greater than or equal to 9

    asked by check this please!!! only 1 question!!!
  341. College Algebra

    USE MULTIPLICATION PRINCIPLE - X/2 = 8 X=_________ I APPRECIATE THE HELP!

    asked by Tiffany
  342. 10th grade

    what is the area of 2 triangles whose legs are 2 feet each and touch side to side???

    asked by Ally
  343. mat116

    solve using addition principle 1.5 = m-9.2

    asked by cindy
  344. English

    Suzuki no doubt hopes his arguments will spur us to action .Does his closing help to achieve that goal

    asked by oshar
  345. English

    1. They don't like hot curry. (Does hot curry mean the curry which is hot? Do you have other types of curry dish?)

    asked by rfvv
  346. Physics Help

    A hot air balloon starts at its launching station and it goes at a horizontal speed of 2.7 m/s and a vertical wind of 1.1 m/s. Once it reaches an altitude of 202 m, it stays at that altitude for 10.3 s, which is when it drops a sandbag. How far will the

    asked by Kourt
  347. grammar

    Why is it important to use appropriate punctuation, including plurals and possessives, in your writing?

    asked by cindy
  348. Social Studies

    What type of people live in brazil

    asked by TOM
  349. math 1

    what is c squared minus 6cd plus 9d squared minus 4

    asked by Bryanne
  350. Social Studies

    What are the issues in brazil

    asked by TOM
  351. Social Studies

    Who are the leaders in brazil and their position and name

    asked by TOM
  352. Social Studies

    Name the industries in brazil

    asked by TOM
  353. Social Studies

    What countries are neighbors with brazil.

    asked by TOM
  354. College English

    I need help with expanding the following essay. Hoagland describes that he feels like a city rat, living in New York City. There is a lot more violence than there used to be, yet after seeing or hearing about it one just goes on with their life. People

    asked by Anonymous
  355. general

    Neurons receive communication through dendrites which act as antennae. Transmitting these initial messages to other neurons is the function of the: cell body. synapse. cerebellum. axon. Im between A and D. Please help.

    asked by phil
  356. Math

    X(-1,-2),Y(2,1),Z(4,-1); scale factor 3

    asked by Sarah
  357. Writeacher

    Writeacher, I have thought out and reposted my ideas. I would like it if you could add in what you also want to say, that way the next time I do something similar to this, I could recognize all the different things beyond the lines to add. To laugh often

    asked by Angelina
  358. algebric expression

    3/a+2/b+1/abc

    asked by Anonymous
  359. Physics

    A football is thrown at 14.0 m/s at an angle of 35.0 degrees. How far away does it land?

    asked by Spencer
  360. lakewood park

    the rule for input output table divide m by 3 what is m

    asked by william
  361. College History

    Were doing a reacting the past game in my class, and i need some help on coming up with an argument for the side of Moderate Demorcrate about-- "Should the electorate be limited to those who have atteneded special schools or otherwise intellectuatl merit?"

    asked by Rebecca
  362. Physics. Please Help!!!

    A hot air balloon starts at its launching station and it goes at a horizontal speed of 2.7 m/s and a vertical wind of 1.1 m/s. Once it reaches an altitude of 202 m, it stays at that altitude for 10.3 s, which is when it drops a sandbag. How far will the

    asked by Kourt
  363. algebra 2

    What is the factorization of the trinomial 3x2 plus 27x plus 60?

    asked by robert
  364. physics

    An aluminum rod is 21.5 cm long at 20°C and has a mass of 350 g. If 12500 J of energy is added to the rod by heat, what is the change in length of the rod?

    asked by Erica--help!
  365. Math

    how to solve ∫(sin ^ -3/2 x) dx ?

    asked by Briandhika
  366. college

    FIND VERTICAL ASSYMPTOTE... X^3-1 _____ X-X^2

    asked by JOHN
  367. Chemistry

    What is the difference between and orbit and an electron orbital?

    asked by Lala
  368. science - biology

    Neurons: A. may be myelinated by microglia. B. secrete neurotransmitters from their nerve terminals in response to action potentials. C. are the most abundance cell-type in the brain D. often contain swellings at the nerve endings known as synaptic battons

    asked by Fred
  369. physics

    If there are three forces acting on an object, one straight up, one up at an angle to the left (angle unknown) and one up at an angle to the right what direction is the combined force? Is it possible for the combined force of those three forces to be down?

    asked by Joel
  370. pre algebra

    you flip a coin and toss a 1-6 number cube. P(not tails and not a 3

    asked by autumn brooks
  371. social studies

    write a paragraph explaining the results of the french and indian war

    asked by kayla
  372. English

    1. I am a farmer, ain't I? 2. I am a farmer, aren't I? (Which one is correct? What is the correct tag question?) 3. Open the door, will you? 4. Open the door, won't you? 5. Don't open the door, will you? 6. Don't open the door, won't you? (Which ones are

    asked by rfvv
  373. 12th grade

    if cos Q=5/9, find 5/9

    asked by chris
  374. Math

    Find the inverse of the function f(x) = x / 2x+1 I know that you would make this x= y / 2x+1 but now I do not know what to do.

    asked by Hannah
  375. Managerial Accounting

    What is your view of the business economics of the Thoroughbred Horse Industry? What are the risk? How should the industry measure success?

    asked by Lisa
  376. Math

    if four friends share equally a 48 ounch bag of popcorn what fraction would each one get?

    asked by Dylan
  377. english

    how do you write an addres

    asked by helan
  378. 6th grade

    if a lawnmower is 45 % off and the sale price is 114.95-what is the original cost?

    asked by Cristi
  379. 6th grade

    Hey how do you turn 5/8 into a decimal??

    asked by Beth
  380. english

    use laugh in a sentence.

    asked by Yemley
  381. math

    find the equations of the quadratics given the following information zeros of 5 and 9 an optimal value of -2 using the formula y=a(x-s)(x-t)

    asked by Ted
  382. MATH

    How does the equation of a log and Ln function effect the graph. (Ex. Dilation, reflection, ect.)

    asked by Kaitlyn