Questions Asked on
February 13, 2012

  1. CHEM HELP!!!

    I don't get two questions out of my homework and I know the answers to them but just not how the answers were gotten. PLEASE HELP!! 1) A handbook gives the aqueous solubility of carbon monoxide at 0 C and 1 atm CO pressure to be 0.0354 mg CO per mL of

    asked by Taylor
  2. PHYSICSSSSSS please help

    An 60 kg skier is sliding down a ski slope at a constant velocity. The slope makes an angle of 13° above the horizontal direction. (a) Ignoring any air resistance, what is the force of kinetic friction acting on the skier? in N (b) What is the coefficient

    asked by Anonymous
  3. fraction&percentage

    express each fraction as a percentage and round off to 2 decimal places. a)79/148 b)58/379 c)15/52 d)43/95

    asked by kimi
  4. PHYSICSSS HELP PLEASE

    A crate of potatoes of mass 9.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.41. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. magnitude N

    asked by Anonymous
  5. precal

    4(3.75^1/64-1)=r

    asked by dave
  6. math,percentage

    Ruzita bought 3kg of chicken.she used 0.75kg of the chicken to cook curry and another 0.13kg to stew w/ vegetables.what percentage of the chicken was not used?

    asked by kimi
  7. physics

    A 20kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80N and is directed at a angle of 30.0degrees above the horizontal. Determine the coefficient of kinetic friction.

    asked by Natasha
  8. math,percentage

    Mr Srinivasan invests 55000$ in a fixed deposit account.the interest rate is 3.3% per year.how much money will he have in the account after 1year? please show your operations clearly.

    asked by kimi
  9. Chemistry

    Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr. How many beta particles are emitted in 190s by a 3.10mg sample of Co-60? What is the activity of the sample in Bq?

    asked by Steven
  10. networking

    In an analog cellular structure, what is needed to establish a valid authentication?

    asked by Joe
  11. math,percentage

    Rahayu spent 2h 25m in a library.she spent 30m of the time reading newspapers.what percentage of her time in the library was spent reading newspapers?

    asked by kimi
  12. physics

    A 4.2 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. How high is the cliff if the temperature of 1.5 kg of water is

    asked by Anonymous
  13. chemistry

    how many grams are contained in 500.g of a 25% solution of H2SO4?

    asked by jessica
  14. Physics

    It’s a beautiful winter day, and you and your friend are throwing around a 5 kg medicine ball on a very slippery frozen lake. You throw the ball toward your friend, and notice that you subsequently slide backwards with a speed of 1 m/s. If your mass is

    asked by Aaron
  15. chemistry

    Convert .25 L of a .025 M solution of NaCL starting with solid NaCI and water

    asked by mj
  16. chemistry

    how many grams of hydrogen are produced if you have 120 grams of sodium? 2Na+2H2O->2NaOH+H2

    asked by tanya
  17. geometry

    in traingle FGH, angle 42 is equal to 42 and an exterior angle at vertex H has a measure of 104. What is angle G?

    asked by kevin
  18. AP Calculus AB

    What is the area of the region bounded by the graphs y=e^x, y=1, x=-1?

    asked by Heather
  19. Calculus

    Why is it important to determine continuity of the function?

    asked by Jake
  20. Fancial management

    Submit your work via My Assignments. 1. Bob’s Country Bunker (BCB), a chain of economically priced motels in the Midwestern United States has reviewed its current target structure of 40% debt and 60% equity. It can issue debt at a rate of 9%. The last

    asked by howard
  21. physics

    At a circus, a human cannonball is shot from a cannon at 15m/s at an angle of 40 degrees from horizontal. She leaves the cannon 1m off the ground and lands on the way down in a net 2m off the ground. Determine her horizontal displacement.

    asked by Ed
  22. physics

    A football kicker lines up to kick a game winning kick. The goalpost is 30m away and the ball must clear the 3.3m high cross-bar. If the kick leaves his foot at an angle of 35 degrees, how fast must the kick be to clear the bar?

    asked by Ed
  23. Maths- Percentage

    in a survey 120 pupils were asked which learning site they would like to visit as part of the learning journey. 24 said A, 36 said B, 54 said C. The rest said D.write the results as pecentages

    asked by Anonymous
  24. chemistry

    compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution

    asked by valerie faylogna
  25. chemistry

    In atom absorption spectroscopy, why is it important for the cathode tube to be the same metal as that being determined?

    asked by kay
  26. math

    Suppose that the investor of problem 14 bought 100 shares of the Geo Fund at $70 per share and that, for the sake of simplicity, we only consider the returns the fund earns and automatically reinvests at the rate of 2% per month. Find a. the beginning

    asked by Anonymous
  27. Chemistry

    Sodium hypochlorite, NaClO, is added as a disinfectant to the water supply. You are analyzing a sample from the supplier to verify its purity and you prepare to titrate 250.0 mL of a solution containing 1.86 g of NaClO with a 1.00 M HCl solution. What is

    asked by Rosa
  28. maths

    Given the equation of an ellipse is 4x^2 + y^2 + 24x - 6y + 9 = 0 (i) Find the centre,foci and vertices (ii)calculate the lengths of the major and minor axes

    asked by victor.m
  29. ENGLISH

    ESSAY PAKISTAN

    asked by FAIZA
  30. us history

    In many was after divisiveness and devastation of the civil war the united states searc for oder econmically include the westward expansion of the nation the reunifieation of a natioal political system in the north and south the in flux of immigrants

    asked by Anonymous
  31. physics

    A box drops down from a small height onto a horizontal conveyor belt. The mass of the box is 95 kg. The belt moves with speed 1,4 m/s. The coefficient of sliding friction between the box and the belt is 0,42. How long does it take for the box to come to

    asked by Anonymous
  32. Chemistry

    A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Potassium bromide (10.5 g), also at 24.2 degree celsius, is added to the water, and after the KBr dissolves, the final temperature is 21.1 degrees celsius. Calculate the

    asked by Elle
  33. english

    what is the complete subject of this sentences(authored and sponsored landmark legislation)

    asked by juliamae t rico
  34. PHYSICS

    Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250 kg ball with zero net charge was dropped from rest at a height of 1.00 m. The ball landed 0.350 s later. Next, the ball was given a net charge of 7.60 muC and

    asked by DAVE
  35. PHYSICS

    A parallel-plate capacitor has plates with an area of 450 cm^2 and an air-filled gap between the plates that is 2.30 mm thick. The capacitor is charged by a battery to 570 V and then is disconnected from the battery. How much energy is stored in the

    asked by DAVE
  36. physics

    A proton has an initial speed of 3.9×105 m/s. What potential difference is required to bring the proton to rest? What potential difference is required to reduce the initial speed of the proton by a factor of 2? What potential difference is required to

    asked by DAVE
  37. ChemistryDrBob222 could you please check this over

    0.281g of Fe(NH4)2(SO4)2*6H2O is dissolved in a total volume of 500.0 mL of water, calculate the resulting Fe concentration in ppm. molar mass of Fe(NH4)2(SO4)2*6H2O = 392.14088g/mol molar mass of Fe = 55.845g/mol 0.281g * (1mol/392.14088g) = 7.165X10^-4

    asked by ella
  38. math

    The number of sweets in Container X was 24 more than Container Y. When I removed 42 sweets from Container X and transfered then in Container Y,the number of sweets in Container Y became thrice of Container X. Find the number of sweets in Container X first.

    asked by Kieron
  39. please help if you can please

    i cant really find the exact thing on google.please a little help please,im begging you thanks help me find a exact link for laws and regulations on opeing up a business in hong kong a. import/export b. joint venture c. direct investment

    asked by hellokitty
  40. chemistry

    The absorbance reading of an element is observed in an atomic absorption spectrometer. Would the readings increase, decrease or stay the same if: (please explain) Thank you a) viscosity of the solution increased or decreased? b) the solution had a lot of

    asked by Emily
  41. math

    6. A bowl contains 10 red balls, 10 green balls and 10 white balls. a. What is the probability of drawing 2 white balls with replacement? b. What is the probability of drawing 2 white balls without replacement?

    asked by sharon
  42. trig

    CSC(theta)=1.92 Find Theta. Now I know CSC = 1/sin but no matter how I enter it into my cal I get an error.

    asked by Zero
  43. Chemistry

    The solubility of cu(io3)2 is 1.0*10-7 what is the solubility of the salt

    asked by Chioma
  44. geography

    How has everyday living in North Africa, Southwest Asia, and Central Asia changed during the past century?

    asked by Brianna
  45. Geography

    Describe the characteristics of the modern literature in Asia?

    asked by Brianna
  46. English

    I have a few doubts on certain phrasal verbs. I hope you can clear them (up)? 1) Can you give me an example of "lay on to"? I can't find any with the preposition "to". 2) He got off with a fine = He got away with a fine 3) The teacher let them off their

    asked by Henry2
  47. English

    Can you please help me rephrase these sentences? 1) It's getting on towards midnight. It's approaching midnight. He can't get his message across. He can't communicate his message 2) The deal was brought off at last It was accomplished. You can't always let

    asked by Henry2
  48. math

    The initial amount is 1 million. Divide it by 4. Divide the result by 5. Divide the result by 2. Divide the result by 20. Subtract 50. Divide by 3 then by 8. Subtract 1. Divide the result by 7. Add 2. Divide by 3. Add 2. Lastly, divide by 5. What result do

    asked by Kris
  49. Finance

    Item Total assets $10,000,000 Total equity (all common) 9,000,000 Total debt 1,000,000 Annual interest 100,000 Total sales $25,000,000 EBIT 6,250,000 Earnings available for common stockholders 3,690,000 I am trying to find the values for the: (1) Operating

    asked by Advice
  50. physics

    2. Rod A, which is 30 cm long, expands by 0.045 cm when heated from 0°C to 100°C. Rod B, also 30 cm long expands by 0.075 cm for the same change in temperature. A third Rod C, also 30 cm long is made up of the materials of rod A and B, connected end to

    asked by Anonymous
  51. Math

    what do you do when you have log on the side with y. for example logy= .120387x + .4771 How do you solve for y?

    asked by Diana
  52. chem

    I'm suppose to calculate the weight percent per volume (grams pre 100cm3) of ethanoic acid in a commercial sample of vineger from the following: (a) 0.4321g of pure momoprotic acid( formula weight 204.2 amu) required 23.45cm3 of naoh for neutralizalion.

    asked by hammie
  53. calculus

    Find the surface area of the solid generated by rotating the area between the y-axis, (x^2/y) + y = 1, and -1≤y≤0 is rotated around the y-axis.

    asked by Anonymous
  54. science

    3) Some ionic compounds contain a mixture of different charged cations. For example, some titanium oxides contain a mixture of and ions. Consider a certain oxide of titanium that is 28.31% oxygen by mass and contains a mixture of and ions. Determine the

    asked by annuni
  55. English

    Anne Frank: The Diary of a Young Girl Briefly explain Anne’s relationship with her parents. How is her relationship with her father different from her relationship with her mother? What does each relationship tell you about Anne, her values, and her

    asked by David
  56. IB MATH STUDIES IA

    I am finding whether men or women are smarter. I am doing a chi-squared test to see if theres a correlation. What other sophisticated processes can i do?

    asked by Justin
  57. algebra

    How do I simplify (2x+3)(x-4)? Does anyone know?

    asked by katelynn
  58. algebra

    can someone explain how I would simplify (3a4 - 2a2 + 5a - 10)(2a4 + 4a2 + 5a - 2)? can anyone help? The #'s that come directly after a letter is the exponent. I just need help understanding how to simplify problems like this...

    asked by katelynn
  59. Math

    f(8.25) (i) Using the rounded-off value a = 2.5, write the equation for f(t). (ii) Use this equation (with the rounded value of a) to find f(8.25). Round the result to the nearest integer Thanks

    asked by Marko
  60. Algebra 2

    (x-4)^3/2 = -6 In the end I got .69, but that's wrong. Please help. I don't really understand. My work. x-4 = -6^2/3 x=4-6^2/3 x=.6980727511

    asked by Christina
  61. MARKETING

    Hi need a help. Can Production orientation be explained as ths: for the producers, marketing forces on, which products to produce? how many products to produce? how to communicate their offers by which media? when n where to make them available to buyers??

    asked by pallavi
  62. world lit

    name three possible agendas and one example of each that you might find in the media.

    asked by adaneike
  63. physics

    A car drives off a sheer cliff, moving horizontally at 17.2 m/s. If the base of the cliff is 14.4 meters below, estimate how long does the car remains in the air.

    asked by jessica
  64. physics

    A penny falls from a windowsill 25.0 m above the sidewalk. How fast is the penny moving when it strikes the ground? (Remember that the velocity will be negative due to the downward motion of the penny)

    asked by Anonymous
  65. Algebra 2

    Using the information given about a triangle, which law must you use to solve the triangle? Law of Sines, Law of Cosines, or Neither. ASA SSS SAS AAA SSA AAS

    asked by Katy
  66. English

    Hi! Any ideas on an activity which could last for 45 minutes? The topic - Valentine's day Learners: 16 year old, 30 in the class, learning English as a foreign language for 7 years

    asked by Mark
  67. english

    We first meet juliet (act 1 scene 3) she has a conversation with her mother about marriage. discuss this. what do we learn about juliet from this? ROMEO AND JULIET

    asked by jane
  68. grammar678

    Q1. the student (who,whom) you reported has been suspended. Q2. (who, whom) are you asking to the dance saturday?

    asked by Anonymous
  69. Chemistry

    In my experiment I heated some oxide of tin, in order to figure out its empirical formula. How would the empirical formula be affected if the oxide was not heated to dryness? Also If some oxide splattered out of the container, how would this affect the

    asked by Wally
  70. cultural diversity

    Consider the following statements: (a) Asian Americans & Pacific Islanders are a model minority, & (b) Asian Americans & Pacific Islanders belong to a single ¿Asian American¿ culture. If someone said one of these statements to you, how would you explain

    asked by cindy
  71. physics

    A car drives off a sheer cliff, moving horizontally at 17.2 m/s. If the base of the cliff is 14.4 meters below, estimate how long does the car remains in the air.

    asked by jessica
  72. Physics

    As a car rounds the top of a hill at a speed of 27.53 m/s, it very briefly loses contact with the pavement. This section of the road has an approximately circular shape. Find the radius r?

    asked by Anonymous
  73. Physics

    A sprinter of mass 63.7 kg runs at a constant speed of 10.2 m/s in a straight line. Find the extra force the sprinter must exert on the ground to round a curve of radius 10.8 m.

    asked by Anonymous
  74. Physics

    You are holding a bulletin board weighing 6.46 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this

    asked by Anonymous
  75. chemistry

    For the reaction between nitrogen and oxygen to form nitric oxide, beginning with 0.067 mol of N2, N2(g) + O2(g)= 2 NO(g) a. how many moles of O2 are required to completely consume the N2? b. how many moles of NO are obtained when the N2 is completely

    asked by krystal
  76. Physics

    You are holding a bulletin board weighing 6.46 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this

    asked by Mike
  77. Physics

    A sprinter of mass 63.7 kg runs at a constant speed of 10.2 m/s in a straight line. Find the extra force the sprinter must exert on the ground to round a curve of radius 10.8 m.

    asked by Mike
  78. Physics 2

    The wire in the figure below carries a current of 12 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 30 A. Use Ampère's law to find the magnitude of the magnetic field at a distance of r =

    asked by Anne
  79. American Government

    Which is NOT true of the segregation laws passed after the Civil War? My answer is 3. 1.)They prohibited interracial marriage. 2.)They did not only apply to blacks. 3.)They were only in the South. 4.)All of these statements are true.

    asked by Mackenzie
  80. health

    Saturated fats are found primarily in A. animal products. B. alcoholic beverages. C. fruits and grains. D. vegetable oils

    asked by Anonymous
  81. physics

    a.) A 125 kg stone has an acceleration of 84.9 m/s2. Determine the net force acting on the stone. b.) A 45 N force is acting on a 757 kg slab. Determine the acceleration of the slab. c.) A 63.2 N force acts on a block and causes an acceleration of 85.1

    asked by lauren
  82. Chemistry

    How would I find the molality of NaCl with the following information? initial temperature= 98degrees celsius final temp=100 degrees celsius. Kbp(water)=0.512

    asked by Hannah
  83. American Government

    Which statement does NOT characterize Martin Luther King Jr.'s "I Have a Dream" speech? 1.)It openly criticized the Governor of Alabama My Answer2.)It supported the peaceful congregation of peoples of all races and religions 3.)It pointed out racial

    asked by Mackenzie
  84. Chemistry

    1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for the determination are a. ƒ´Tf and Kf only. b. ƒ´Tf , Kf and mass of solute. c. ƒ´Tf , Kf , mass of solute and mass of

    asked by Hannah
  85. Physical science

    A 9kg mass travelling eastwards at 4m.-1 collides with a 3kg mass westwards at 8m.-1.whatis the total momentum of the masses?

    asked by Zinhle
  86. chemistry

    For the combustion of ethane, beginning with 2.6 mol of CH3CH3, 2CH3CH3(g) + 7O2(g) → 4CO2(g) + 6H2O(g) a. how many moles of O2 are required to completely consume the CH3CH3? 9.1 moles b. how many moles of CO2 are obtained when the CH3CH3 is completely

    asked by krystal
  87. statistics

    Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends

    asked by Anonymous
  88. chemistry

    Consider the following reaction. 2KClO3(s) → 2KCl(s) + 3O2(g) a. How many grams of KCl are produced from the complete reaction of 2.16 mol of KClO3? 161g b. How many grams of KCl are produced from the complete reaction of 52.7 g of KClO3? 32.1 g

    asked by krystal
  89. English

    Could you give me some more examples of "bring off"? I included other examples of phrasal verbs. I also need to write the evacuation rules. Could you please help me? 1) I'm letting you off this time, but you must promise you'll never take any money from my

    asked by Henry2
  90. math

    how many 9 inch square tiles are needed to cover a table top that is 3 feet by 3 feet?

    asked by Anonymous
  91. business finance

    answers to exam#06044200 do you have ?

    asked by linda
  92. Chem

    Which of these solutions is the most basic? [H+] = 1 x 10–2 M [OH–] = 1 x 10–4 M [H+] = 1 x 10–11 M [OH–] = 1 x 10–13M i think its the first one?

    asked by Sara
  93. Physics

    An arrow is shot at ground level with an initial speed of 50.0 m/s at an angle of 25.0° above horizontal. What is its x-coordinate when the arrow is on the way up and its y coordinate is 5.00 m above the ground?

    asked by Jem
  94. Chemistry

    The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are

    asked by Hannah
  95. Science

    An object with a mass of 5kg collides witn an object with a mass of 3kg that is stationary.the two objects stick together and move on with a velocity of 6m.-1 .what was the velocity of the 5kg mass before the collision took place?

    asked by Zinhle
  96. Science

    A bullet with a mass of 50kg leaves the barrel of a rifle wiyh a velocity of 400m.-1 ,if the mass of the rifle is 3kg ,what is the recoil velocity of the rifle?

    asked by Zinhle
  97. 5th grade math

    How do you find the area of an irregular shape? The shape is shaped like a cat's head. Please help me!

    asked by Horace
  98. chemistry

    How many moles of aspirin are present in 100 mg of aspirin? Enter your answer in scientific notation. 5.5E-4

    asked by krystal
  99. Language Arts

    On the sentence: They dive deep beneath the surface in search of an exciting find. Would the adjectives in the sentence be deep and exciting? I wasn't totally sure on deep. I also wasn't sure if beneath would be an adjective. Thanks...

    asked by Brandi
  100. physics

    5. Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag, that brings her body to a stop in 0.500 s. What average force

    asked by Anonymous
  101. Physics

    An 800-kg car traveling in a straight line at a speed of 30 m/s applies its brakes. During braking, there is a net force of 2000 N in the horizontal direction on the car. What distance will the car move from the time it applies its brakes until it has

    asked by Jub jub
  102. chemistry

    2.875 mol H2O = ___ g

    asked by sarah
  103. physics

    the equation of transverse wave on a rope is y(x,t)=5sin(4.0t-0.02x) where (y) and(x) are measured in cm and (t) in second.calculate the maximum speed of particle on the rope

    asked by ashley
  104. Chemistry

    I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two separate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both

    asked by Hannah
  105. ss

    who were the Taino and what had happened to them by the 1500s?

    asked by Gabby ( 5 grade)
  106. physics

    for a damped harmonic oscillation , the equation of motion is md^2x/dt^2+(gamma)dx/dt+kx=o with m=0.025kg,(gamma)=0.07kg/s and k=85N/m. *calculate the period of motion *number of oscillation in which its amplitude will become half of its initial value *the

    asked by ashley
  107. English

    What does the proverb say about braviety.braviet is?

    asked by Zinhle
  108. physics

    two collinear harmonic oscillation x1=8sin(100pie(t)) and x2=12sin(96pie(t)) are superposed.calculate the *maximum and minimum amplitudes *the frequency of amplitude modulation

    asked by ashley
  109. physics

    state whether the variation pressure at nodes in a stationary wave is maximum or zero .justify

    asked by ashley
  110. Language Arts

    On the sentence: One group of divers found the treasure of a Spanish galleon. Would the adjectives in the sentence be One and Spansish? I wasn't sure if One would be an adjective or not. I also couldn't tell if group would be an adjective. Thanks...

    asked by Brandi
  111. Sociology

    why is sociology not taught in the high school level?

    asked by Tariq
  112. Math

    How can you turn 1/6 into a decimal and a percent???????

    asked by Madelyn Santiago
  113. Operations management

    An appliance manufacturer wants to contract with a repair shop to handle authorized repairs. The company has an acceptable range of repair time from 50 minutes to 90 minutes. Two firms have submitted bids for the work. In the evaluation trail, one firm had

    asked by Ashley
  114. Science

    Which of these traits can a tree NOT pass to its offspring? A.the shape of its leaves B.roots that grow toward water C.a trunk scarred by lightning D.the kind of seeds it forms C?

    asked by Colton
  115. Physics

    A banked circular highway curve is designed for traffic moving at 65 km/h. The radius of the curve is 207 m. Traffic is moving along the highway at 43 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow

    asked by Lily
  116. Chemistry

    A 50.6 mg sample of sodium perchlorate contains radioactive chlorine-36 (whose atomic mass is 36.0 amu). If 29.6% of the chlorine atoms in the sample are chlorine-36 and the remainder is naturally occurring nonradioactive chlorine atoms, how many

    asked by Steven
  117. Science

    Duckweed is a small plant that grows in water Many waterbirds depend on duckweed for food Duckweed can reproduce rapidly in water that is rich in the nutrients used in agriculture. Which of these human activities would most likely cause an overgrowth of

    asked by Colton
  118. Chemistry

    A 25.40 g sample of water containing tritium,(3/1)H , emits 1450 beta particles per second. Tritium is a weak beta emitter, with a half-life of 12.3 yr. What fraction of all the hydrogen in the water sample is tritium?

    asked by Steven
  119. algebra

    Find the sum by making a drawing. (2+3)+(5x+1)

    asked by Crystal
  120. Science

    Plants=storing water Bacteria and fungi=decomposing dead organisma Earthworms=making soil less compact Bees=pollinating flowering plants Nearly all organisms=cycling oxygen and carbon dioxide Accoring to the chart,what would most likely happen in an

    asked by Colton
  121. Math

    Sean is playing a game where you toss a coin and roll a number cube. How many possible outcomes?Show it as a fraction,decimal, and a percent. If p= probability, what is P( heads,odd)??? Please answer very urgent!!!!

    asked by Madelyn Santiago
  122. Health - Violence and Injury

    1. Which of the following is/are common characteristic(s) of child abusers? a. frustration with life b. has experienced violence in their life c. low socioeconomic status d. All of these 2. Jane is being harassed by a coworker. You would tell her to a.

    asked by Ashley
  123. Science

    Which adaptation helps some plants that live in the dry deserts? A.tall trunks B.long roots C.thin stems D.floating parts B? An animal that sleeps during the day MOST LIKELY lives in A.a tropical rain forest B.a tundra region C.a tide pool D.a hot desert

    asked by Colton
  124. pre cal

    A rectangular parcel of land has an area of 4,000 ft2. A diagonal between opposite corners is measured to be 10 ft longer than one side of the parcel. What are the dimensions of the land, correct to the nearest foot?

    asked by Anonymous
  125. MATH

    Find the slope of the tangent line to the graph of the function at the given point. g(x) = 7/2x + 9, (-2, 2)

    asked by Anonymous
  126. Chemistry

    A saturated solution at 25 C contains 10g of kclo3 in 50 ml of water. At what temperature does the solution become unsaturated?

    asked by Mingma
  127. physics

    Estimate the rise in temperature of the brake discs in a car of mass 1200g,travelling at 30m/s which is brought to rest by the application of the brakes alone,the brake disc have a total mass of 5kg.Assummed that there is no heat loss and that the material

    asked by BRIGHT
  128. MATH

    Find the slope of the tangent line to the graph of the function at the given point. g(x) = 17 − x^2; (3, 8)

    asked by Anonymous
  129. English

    Could you please help me rephrase these sentences? Thank you. 1) Dad took the day off to come with me. (Rephrase?) 2) Don't take too much work on (rephrase?) 3) They took 20% off the list price. They removed 20% from the list price (is there another verb I

    asked by Henry2
  130. Math

    Is 2,3,5,9 and 10 divisible by 15

    asked by Anonymous
  131. physics

    Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250 kg ball with zero net charge was dropped from rest at a height of 1.00 m. The ball landed 0.350 s later. Next, the ball was given a net charge of 7.60 muC and

    asked by kas
  132. physics

    A parallel-plate capacitor has plates with an area of 450 cm^2 and an air-filled gap between the plates that is 2.30 mm thick. The capacitor is charged by a battery to 570 V and then is disconnected from the battery. How much energy is stored in the

    asked by kas
  133. physics

    A proton has an initial speed of 3.9×105 m/s. What potential difference is required to bring the proton to rest? What potential difference is required to reduce the initial speed of the proton by a factor of 2? What potential difference is required to

    asked by kas
  134. 6th grade math

    your mother gave you $13.32 with which to buy a present.This covered 3/5 of the cost.how much did the present cost? can someone please help me and also show me how to solve this?

    asked by Kate
  135. algebra

    would you please check my work and make changes for errors? thanks ann problem: joe bought 3- topping sundae for 15.25 and a 5 topping sundae for 17.75. write and solve a system of linear equations to find price of each topping and a plain sundae(no

    asked by ann
  136. Math

    Hannah sliced a pie into 12 equal pieces.Hannah and her brothers ate 3 of the 12 slices. What fraction of the pie was NOT eaten? A.1/3 B.1/4 C.2/3 D.3/4 We did this one together in class and my teacher said it was D Explain? I know its not B cause 3/12=1/4

    asked by Colton
  137. Physics (DUE SOON)

    A generating station is producing 2.00 106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.00 10-2 /km. (a) Find the power lost in

    asked by DCM
  138. Math

    Total of 92 students in the school band. There are 16 more girls than boys in the band. How many girls are in the band?

    asked by Troy
  139. Math

    What's the answer to "230 is increased to 250?"

    asked by Bob
  140. Math

    Please show me how to set and solve: The sum of two numbers is 90. Their difference is 12. What are the numbers?

    asked by Mary
  141. Operations management

    At a major supermarket, checkout time is monitored to improve service quality. For six days, samples each with 20 observations have been obtained, and the following table summarizes the data. Determine if the checkout process is in control or not. You must

    asked by Ashley
  142. Spanish-SraJMcGin please check

    I had to describe jewelry my mom wears-I'm not sure if this is correct. Mi madre lleva un anillo de diamantes. My mother wears a diamond ring. Ella también lleva las aretes de oro muy bonita. A veces, ella usa aretes de plata.Sometimes, she wears silver

    asked by Terry
  143. Philosophy: Introduction to Logic

    1.) (L=N) > C 2.) (L=N) v (P>~E) 3.) ~E > C 4.) ~C /~P

    asked by Tiffany
  144. 6th grade math

    If the weight of a package is multiplied by 5/7 the result is 40.5 pounds.Find the weight of the package.

    asked by Kate
  145. math

    how do you calculate the unite price of the two items showing long division

    asked by kyle
  146. math

    how do you calculate the unite price of the two items showing long division

    asked by kyle
  147. Math [Trig]

    how do you find a full cycle of a trigonemtric function?

    asked by Cody
  148. geography

    1. What European city is near the intersection of 60 degrees N latitude and 30 degrees E longitude? Saint Petersburg, Russia 2. What river is found in Northeast India? Brahmaputra River 3. Three-fourths of an inch on a map equals 500 miles. From Chicago to

    asked by Reed
  149. math

    Assume that the camper has 3 jackets, 3 sleeping bags, and 11 different packages of food. An outfit consists of 1 jacket, 2 sleeping bags, and 4 packets of food.

    asked by 10th
  150. Math

    Assume that the camper has 3 jackets, 3 sleeping bags, and 11 different packages of food. An outfit consists of 1 jacket, 2 sleeping bags, and 4 packets of food.How many ways can the trip be outfitted?

    asked by Victoria
  151. 6th grade math

    A stray dog ate 12 of your muffins.That was 3/10 of all of them! with how many did you start???

    asked by kate
  152. Math

    You have $47 to spend on music and movie downloads. Each album download cost $7 and each movie download costs $8. Write and graph a linear inequality that represents this situation. Let x represent the number of albums and y the number of movies.

    asked by Mary
  153. algebra1

    how do I simplify (x^2+16)(x^2-16)?

    asked by katelynn
  154. MATH

    Find the slope of the tangent line to the graph of the function at the given point. g(x) = 7/2x + 9, (-2, 2)

    asked by Anonymous
  155. MATH

    Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function f(x) = 2x^2 Line 6x – y + 4 = 0

    asked by Anonymous
  156. Math

    Exponential decay problem After how many years will $100 invested at an annual rate of 6% compounded continuously be worth at least 450$? (Use the formula An=A0e^rt)

    asked by Wilbert
  157. MATH

    Use the rules of differentiation to find the derivative of the function. y = π/2 cos(θ) − sin(θ)

    asked by Anonymous
  158. MATH

    Use the rules of differentiation to find the derivative of the function. y = 4 + 7 sin(x)

    asked by Anonymous
  159. MATH

    Find the derivative. y = 7/9x^5

    asked by Anonymous
  160. algebra1

    can someone help me simplify 2a^2b^3(4a^2+3ab^2-ab)=? the first part of the answer is 8a^4

    asked by katelynn
  161. MATH

    9√x/x a) rewrite b)differentiate c)simplify

    asked by Anonymous
  162. MATH

    y = 2/x^-8 rewrite differentiate simplify

    asked by Anonymous
  163. MATH

    Find the slope of the graph of the function at the given point. Use the derivative feature of a graphing utility to confirm your results. f(x) = 3/x^2 , (1, 3)

    asked by Anonymous
  164. MATH

    Find the slope of the graph of the function at the given point. Use the derivative feature of a graphing utility to confirm your results. f(θ) = 8 sin(θ) − θ, (0, 0)

    asked by Anonymous
  165. MATH

    Find the derivative of the function. f(x) = 7x^3 + 7x^2/x f '(x) =

    asked by Anonymous
  166. MATH

    Find the derivative of the function. f(x) = sqrt{x} -[3]sqrt{x}

    asked by Anonymous
  167. U.S History

    how did john quincy adams win the election of 1824?

    asked by Jackson
  168. 3 grade english

    spellings of /j/,/k/,/s/ directions draw a line under the words that have the /j/ sound that you hear in jar, large and edge. then write the __ ____ words on the lines below the sentences. 1 jassie took a big piece of fudge. 2 the storm caused a lot of

    asked by dw
  169. algebra 1

    how do i simplify (3*22)divided by 6+[28-(4)^4]=? the answer i came up with was 23.

    asked by katelynn
  170. physics

    Assuming that it takes 0.10 s for the driver to react before applying the brakes, what is the stopping distance (the distance from the point where the driver first sees the need to stop to the point where the car comes to a stop) for a car traveling at 25

    asked by Laura
  171. U.S History

    why did new political parties form after the election of 1824?

    asked by Jackson
  172. English

    I left out these sentences. Thank you. 1) If he wore a tuxedo and a pair of slide-on shoes, he would be more suitably dressed. 2) I need to give an example for the following phrasal verbs: Keep up: continue gear up for: get ready chase away screw up melt

    asked by Henry2
  173. English 9

    make separate absolutes for each of the following: Moshe the Beadle- spiritual leader, outsider Elie's father- closest relative, caring Elie's mother- mom, lost in begining of the book Hilda- Elie's sister Gestapo- Officer that took Elie away from his

    asked by Austin
  174. chemistry

    At 25 °C only 0.0990 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?

    asked by Katie
  175. business communication

    state a specific purpose from this message A report to your boss, the store manager, about the outdated items in the warehouse

    asked by livonbrushy
  176. Math

    Assume that you have 7 dimes and 5 quarters (all distinct), and you select 4 coins. In how many ways can the selection be made so that at least 3 coins are dimes?In how many ways can the selection be made so that at least 3 coins are dimes?

    asked by Kayla
  177. Math

    Assume that the committee consists of 8 Republicans and 6 Democrats. A subcommittee consisting of 7 people is to be selected. How many such subcommittees are possible if each subcommittee must contain at least 1 and no more than 3 Democrats?

    asked by Kayla
  178. chemistry

    Copper(I) ions in aqueous solution react with NH3(aq) according to Cu+(aq) + 2NH3(aq) -->Cu(NH3)2^+ Kf = 6.3x10^10 Calculate the solubility (in g·L–1) of CuBr(s) (Ksp = 6.3× 10–9) in 0.41 M NH3(aq).

    asked by Katie
  179. Math

    Assume that a committee consists of 12 people including the chairperson and that the chairperson must select a committee of 3 people from the other 11 members of the committee. In how many ways can this be done?

    asked by Kayla
  180. math

    Assume that there are 11 girls and 9 boys in the neighborhood club, and a team of 6 is to be selected.How many different teams can be selected if each team must contain exactly 3 girls and 3 boys?

    asked by Kayla
  181. chemistry

    Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. However, when additional aqueous hydroxide is added the

    asked by Katie
  182. chemistry

    A generic salt, AB2, has a molar mass of 159 g/mol and a solubility of 3.30 g/L at 25 °C. What is the Ksp of this salt at 25 °C?

    asked by Katie
  183. chemistry

    At 25 °C only 0.0580 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?

    asked by Katie
  184. chemistry

    At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0510 g/L. What is the Ksp of this salt at this temperature?

    asked by Katie
  185. Physics

    A = 145 rock is hoisted upward with an acceleration of 1.46 by a vertical chain of negligible weight. What is the free body diagram?

    asked by Ruth
  186. chemistry

    Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.00 M potassium chromate aqueous solution?

    asked by Katie
  187. english

    i read story today it be called " A few notes for orpheus" anyone read this story before? i need help with questions.

    asked by Mohammad
  188. College Chemistry

    previous answer to problem before this one(relevant in 2nd half of this question): 294.472689amu what would be the mass of 1.36 moles of these atoms? Enter your answer here: ____ g

    asked by Kayla
  189. language arts

    Hi...in the sentence, "The jewels, coins, and other artifacts are priceless." Would the adjective in the sentence be priceless? Thanks..

    asked by Brandi
  190. Family and Consumer Science

    1. Identify - What are four (4) influences that give you a unique indentity? What does this question means??? I'm going to answer it I just want to know what does this question means so that way I can understand it in order to answer this question.

    asked by Laruen
  191. math

    Combine like terms. 12.) 7r4 + 13r2 + 9r 13.) 3 - 4x - 15x - 6x - 1 Thanks to whoever helps me :D

    asked by Jazzy
  192. English 7 - Narretive/Journal Entry Assignment

    Read below: English 7 HW - Collect faucal info. about your role to be incorporated in your narrative/journal entry. English Notes Taken Today/Do Now: Aim - How can we plan and brainstorm for an narrative that refects real life determination from a

    asked by Laruen
  193. psychiatry

    Can someone help me to understand physical factors, and psychosocial factors? The case I am dealing with has to do with a female drug user who was emotional abused by her parents who were also drug users and her husband physically abused her. Would the

    asked by RT
  194. physics

    An aboveground pool is 5ft tall with a diameter of 40 ft is filled with water in 50 minutes. How long will it take to fill an aboveground pool that is 6ft tall with a diameter of 36 ft?

    asked by Rennee
  195. chemistry

    You react chemical A with chemical B to make one product. It takes 100 grams of chemical A to react completely with 20 grams of chemical B. What is true about the chemical properties of the product? a. the properties are more like those of chemical A b.

    asked by student
  196. physics

    An aboveground pool is 5ft tall with a diameter of 40 ft is filled with water in 50 minutes. How long will it take to fill an aboveground pool that is 6ft tall with a diameter of 36 ft?

    asked by Rennee
  197. physics

    An aboveground pool is 5ft tall with a diameter of 40 ft is filled with water in 50 minutes. How long will it take to fill an aboveground pool that is 6ft tall with a diameter of 36 ft?

    asked by Rennee
  198. Chemistry

    Consider the below three solvents and the corresponding values of Kf for each. Prove, using the formula for Kf, which one of these solvents would allow for the most sensitive procedure for determining the molar mass by the freezing point depression method.

    asked by Heaton
  199. TV Production

    is a studio control room the most basic television system?

    asked by Willy Wonka
  200. Chemistry

    I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two separate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both

    asked by Hannah
  201. finite

    Assume that a committee consists of 12 people including the chairperson and that the chairperson must select a committee of 3 people from the other 11 members of the committee.

    asked by Kayla
  202. Math

    What is the ANS button for on Ti-83 Hi, I am learning about storing numbers on my Ti-83. I understand how to store a number, but I do not know what the ANS key is for, when I use it I get a different number because I use e^x--> ans-->enter, which gives me

    asked by Hudson
  203. calculus

    1. Let f be the function that is defined for all real numbers x and that has the following properties. (i) f''(x)=24x-18 (ii) f'(1)=-6 (iii) f'(2)=0 a. Find each x such that the line tangent to the graph of f at (x, f (x)) is horizontal b. Write an

    asked by Yoona
  204. AP English Literature

    "every nerve I had feared him; and every morsel of flesh on my bones shrank when he came near," uses all of the literary devices EXCEPT A) parallelism, B) hyperbole, C) paradox, D) personification, E) synecdoche

    asked by james
  205. calculus

    3. Let f be the function defined by f(x)=ln(2+sinx) for pi

    asked by Yoona
  206. to mikh

    sorry i read reply so late you read the book "a few notes for orpheus?

    asked by Mohammad
  207. algebra

    In a basketball game, Garrett and Logan scored a total of 19 points. Logan and Ray scored a total of 14 points. Logan scored as many points as Garrett and Ray together. How many points did each player score? Logan______ Garrett______ Ray_____

    asked by zachary stanich
  208. english

    i read this book and if anyone read it, please be able to help me with questions? 1D_SS_CA_A Few Notes For Orpheus . d o c

    asked by Mohammad
  209. college math

    Assume that there are 11 girls and 9 boys in the neighborhood club, and a team of 6 is to be selected. How many different teams can be selected if each team must contain exactly 3 girls and 3 boys?

    asked by Haley
  210. math

    ms fuller has 2 2/6 pies left over from her party. write the number of pies left over as a fraction greater than 1

    asked by jade
  211. TV Production

    is an ENG and EFP with most strongly associated with multicamera systems?

    asked by Willy Wonka
  212. Math

    Can you Check my work please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000. b. Write down two equations for P and a, one when t = 4 and the other

    asked by Walt
  213. math

    Fewer than 107 girls attend a basketball camp. A total of 180 children attend at the camp. Which inequality can be used to find the number of boys n tha might have attended the basketball camp? math problem

    asked by breanna
  214. science

    From the 1970s to the present, a shift in the evolution of public policy moved toward a New Federalism. How did this effect public policy? Was this positive or negative? Why?

    asked by Lisa
  215. history

    what is the differencebetween a true bill and a no true bill

    asked by Anonymous
  216. math

    5k+2=6

    asked by laketa
  217. Algebra 2

    Find the values of the six trigonometric functions for ∠A in standard position determined by the point (63, 280). Enter your answers as fractions. sin A cos A tan A csc A sec A cot A

    asked by Katy
  218. chemistry

    In a particular redox reaction, Cr is oxidized to CrO4^2– and Cu2^+ is reduced to Cu^+ . Complete and balance the equation for this reaction in acidic solution. Cr + Cu^2+ ---> CrO4^2-+ Cu^+ i started off by doing this 2 x SO3^2- ---> SO4^2- + 2e 2 x

    asked by Mike
  219. Algebra

    First year students attending Hogwarts ride in boats from the train station (point H) to the castle (point C). The most direct route is 760 meters and the boats travel at 100 m/min. Unfortunately, one boat got off course by 17° and traveled on this path

    asked by Katy
  220. Great News!!! :) (for teachers!!!)

    GOT A 102 ON FACS SPELLING TEST GOT 100 ON FACS TEST GOT A 94 ON MATH TEST GOT 80 ON MATH NTBK QUIZ GOT 100 ON ENG POSTER GOT 87 ON SCI HW GOT A CHECK ON SCI HW/CW GOT A 93 AEVRAGE FOR SS GOT A 87 AVERAHE FOR SCI (for the 2nd quarter 1st quarter i got a 80

    asked by Laruen
  221. Algebra

    A chair lift is to be built from the bottom of the mountain (point B) to the top (point T). A surveyor found the following measurements: ∠CBT = 21°, ∠BET = 17° and the distance BE = 780. What is the span of the chair lift? (The distance from B to T?)

    asked by Katy
  222. Algebra 2

    A UFO is first sighted at point A due east from an observer at an angle of 14 degrees from the ground. And at an altitude of 223 m. The UFO is next sighted at point B due east at an angle of 28 degrees and an altitude of 446 m. What is the distance from A

    asked by Katy
  223. Algebra

    A car travels West for 79 miles before turning at an angle of 22° North of East. The car continues on this path for 63 miles and stops. How far is the car from its starting point? Round your answer to the nearest tenth.

    asked by Katy
  224. geometry

    An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle. Could someone please explain how to find perimeter. I believe the answer to be 60 sq rt 3m

    asked by Brandon
  225. Math

    Yessica needs to buy some wood to build a box. She mu8st calculate the surface area of the box to determin ehow much wood to buy. The box must me 2 feet long and 3 feet wide. I need the answer to this question ?

    asked by Jennifer
  226. Math Help

    Please break down and explain answer. Thank you: You make a bag of candy for yourself before you go to the movies. The bag consists of many different pieces of candy with Skittles, M&Ms, Life Savers, and Sour Patch Kids. Half of your pieces of candy are

    asked by Pretty Please Help
  227. Chemistry

    For the equation: deltaHrxn = qrxn / mol substance to calculate deltaH per mole what does the mol substance mean? Does this mean that you use the mm of the substance or if you already calculated the # of moles of a substance do you use that?

    asked by Hannah
  228. math

    Assume that a committee consists of 12 people including the chairperson and that the chairperson must select a committee of 3 people from the other 11 members of the committee. In how many ways can this be done? So....I tried 11*10*9 because im not

    asked by PLEASE HELPPP
  229. Geometry

    Two angles of triangle FGH measure 33 degrees and 57 degrees.What is the measure of the third angle in FGH?

    asked by Joshua
  230. AP English Literature

    Can someone please help me? In Jane Eyre in chapter 1 with the quote, "every nerve I had feared him; and every morsel of flesh on my bones shrank when he came near," all the literary devices illustrate all of the following EXCEPT A) parallelism, B)

    asked by james
  231. chemistry

    When 11.0 g of calcium metal is reacted with water, 5.00 g of calcium hydroxide is produced. Using the following balanced equation, calculate the percent yield for the reaction? Ca(s) + 2 H2O(l) → Ca(OH)2(aq) + H2(g) 84.0% 12.3% 45.5% 24.6%

    asked by Martese
  232. Design Logic and programming

    write a program that ask the student to enter an answer to a math problem. The user should enter two values, one at a time, and then ask for an answer. The program should display if the entered answer is correct or not and display the correct answer if the

    asked by Kathleen
  233. Chemistry

    Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: A 2.00-g sample of is reacted with 1.93 g of . How many grams of water remain after the reaction is complete? 0.0714 1.29 0.00 1.04 0.00396

    asked by Martese
  234. math

    if you have a piece of string 11 ft. long and you cut it into 15 equal pieces how long will each piece be?

    asked by Madison
  235. english

    i write first part of story out cause i confused with first question. I was sitting in my room when the phone rang. "Hello" it's me, she said. Mother. I was almost glad to hear her. But something must be wrong. She never phoned me. "is something wrong?"

    asked by Mohammad
  236. calculus

    graph 2.25h+5m>23

    asked by Patrick
  237. Pre algebra

    mr. and mrs.green received a discount of $87 on a new electric stove. the discount was the result of a 1/4 of sale. what was the sale price of the stove?

    asked by Ashlee
  238. chemistry

    λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 6.

    asked by Adriana
  239. Rydberg equation

    λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 6.

    asked by Adriana
  240. physics

    A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a and air resistance is negligible, is hit directly upward and returns to the same level 6.90 later.

    asked by Anonymous
  241. science

    If the manatees were able to make 3 adaptions to their body or way of life for their survival, what would they be? PLEASE no websites :/

    asked by matt
  242. Science

    I know tat this sounds silly but my science techer is giving us expierements to try out and she picked for me to reserch how to get rid of split ends??? Can I get a link please?

    asked by Porsha Leboitz
  243. math percents

    have a word problem can you help josh wants to buy a video game system that cost $800 rightnow he has $5.0 saved. what percent of the $800 has he saved so far?

    asked by marko
  244. ece literacy

    please help I just can't find the answer to this question. Words are: A)convenient communication shortcuts B)not arbitrary symbols C)unique to each individual in english D) thoughts written down I really cant decide which is correct. the definition of

    asked by Deb
  245. Math

    Jose said all of the multiples of 8 are also multiples of 2. Jamila said that all of the multiples of 8 are also multiples of 4. Who is correct? Explain.

    asked by Meil
  246. chemistry

    If 5.50 moles of aluminum are reacted with 4.55 moles of copper(II) chloride, how many moles of aluminum chloride are porduced by the limiting reactant?

    asked by Tara
  247. math

    Assume that a committee consists of 12 people including the chairperson and that the chairperson must select a committee of 3 people from the other 11 members of the committee. In how many ways can this be done?

    asked by Victoria
  248. math percents

    is this right? to finde decimal and percent for 1 4/5 decimal is 1.8 percent 180%

    asked by marko
  249. math

    Looking at a table of numbers and there is a pattern starting with the number 501, then shaded numbers every 8th number starting with 509. How do I use place value to describe how the numbers change?

    asked by Jordan
  250. math

    It takes Mrs. Brown exactly 3 hours and 30 minutes to drive from her home to fayetteville. Her abverage speed is 60 miles per hour. how far is Mrs. Brown's home from fayetteville?

    asked by dale
  251. geometry

    3x + y + 7 + 90 = 180 deg. how to solve?

    asked by john
  252. Social Studies 7R - DBQ Essay Check

    Please check my essay to see if it's good. I edit and revise it MANY times and plus my teacher help me on the last paragraph. The American Revolution From 1763 through 1776 the American colonies sprit of rebellion was escalating. After a long period of

    asked by Laruen
  253. 3 grade english

    spellings of /j/,/k/,/s/ directions draw a line under the words that have the /j/ sound that you hear in jar, large and edge. then write the __ ____ words on the lines below the sentences. 1 jassie took a big piece of fudge. 2 the storm caused a lot of

    asked by dw
  254. physics

    A car travels at a constant speed around a circular track whose radius is 2.60 km. The car goes once around the track in 344 s. What is the magnitude of the centripetal acceleration of the car?

    asked by Joe
  255. World History

    How did the ideas of the Enlightenment thinkers later influence the governments of the United States and France? Thanks -MC

    asked by mysterychicken
  256. Math

    5n/8-1/2=3/4 Please help me solve this problem and show me how you did it thanks.

    asked by Lisa
  257. chemistry

    A 300 mL sample of hydrogen gas is at a pressure of 0.500 kPa. If the pressure increases to 0.750 kPa, what will be the final volume of the sample? Assume that the temperature stays constant

    asked by Kristyn
  258. chemistry

    A 300 mL sample of hydrogen gas is at a pressure of 0.500 kPa. If the pressure increases to 0.750 kPa, what will be the final volume of the sample? Assume that the temperature stays constant

    asked by Kristyn
  259. math

    A student's score is 36 and she get 100% equivalent, what is the percentage equivalent if the other student get 27 out of 36 items

    asked by mavi
  260. algebra

    what is 33 and 1/3 percent plus p equals 100

    asked by sabin
  261. Chemistry(Please help, thank you)

    For the equation: deltaHrxn = qrxn / mol substance to calculate deltaH per mole what does the mol substance mean? Does this mean that you use the mm of the substance or if you already calculated the # of moles of a substance do you use that?

    asked by Hannah
  262. math for elementry school teacher

    A cart carries 100 pounds of cucumbers. The cucumbers are 95% water, and during the day they lose water rapidly on a hot, dry day. After a day passes by, the cucumbers are now 90% water. How much much do the cucumbers weigh after drying out?

    asked by deadlove
  263. Math

    One angle of a triangle measures 120 degrees. The other two angles are congruent. Write and solve an equation to find the measure of the congruent angles.

    asked by Mike
  264. chemistry

    Which of the following will be more soluble in an acidic solution than in pure water? AgBr Be(OH)2 RbClO4 CaCO3 PbSO4

    asked by Katie
  265. science

    What does it mean when manatees have natural selection? i have a summary to do about manatees and one of the words i have to use is natural selection. Any help?

    asked by matt
  266. trig

    refer to right triangle ABC with C = 90degrees. Given a= 2 and b=√5 Find the six trigonometric functions of A. and find the angles A and B

    asked by Mari
  267. Math

    Suppose that 8 turns of a wire are wrapped around a pipe with a length of 60 inches and a circumference of 4 inches. What is the length of the wire

    asked by Marche
  268. Math Pattern Help

    Please help me to find out the missing y Numbers. I cannot figure out the pattern. x Y 1 9 2 8 3 7 4 8 10 12 -2 15 20

    asked by Please Help
  269. statistics

    Imagine that you are interested in whether there is a relationship between the amount of coffee people drink and the number of hours they sleep each night. Determine whether you expect a positive or a negative relationship between the cups of coffee people

    asked by Beverly
  270. geometry

    If the base of a triangle is represented by x + 4 and the height is represented by 2x, which expression represents the area of the triangle? 1.(x + 4) + (2x) 2.(x + 4)(2x) 3. 4.(x + 4)(2x)

    asked by Anonymous
  271. algebra

    A number cube is rolled three times what is the probability of the sequence even,even,odd?

    asked by cade
  272. algebra

    julie sorted 52 sports cards.she divided them into 5 equal groups.julie had 12 cards leftover.how many cards were in each group

    asked by Anonymous
  273. algebra

    Find the interval (or intervals) on which the given expression is defined: (x^2-7x+12)^(1/2)

    asked by student
  274. physics

    A cement block accidentally falls from rest from the ledge of a 52.1-m-high building. When the block is 19.8 m above the ground, a man, 2.00 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get

    asked by Anonymous
  275. physics

    A locomotive is accelerating at 3.10 m/s2. It passes through a 25.0-m-wide crossing in a time of 3.03 s. After the locomotive leaves the crossing, how much time is required until its speed reaches 25.7 m/s?

    asked by Anonymous
  276. physics

    a net force of 2.50*10^3 n on a rocket of mass 1.70*10^3kg how long does it take this force to increase the rockets velocity from 0 m/s to 2.15*10^2 m/s

    asked by Kdunc
  277. physics

    What is the average acceleration (in km/h2) of the bus for the entire 3.5-h period? Point A = (32,1) B = (46, 2.25) C = (38, 3.5)

    asked by Anonymous
  278. algebra

    of 8 Multiple Choice: Please select the best answer and click "submit." The rule below shows how to find the distance traveled of an object thrown downward with initial velocity of 3 feet per second. Which answer expresses that rule in the form of an

    asked by guerline
  279. chemistry

    Write the balanced chemical equation for each of these reactions. Include phases. However, when additional aqueous hydroxide is added the precipitate redissolves forming a soluble [Pb(OH)4]2–(aq) complex ion.

    asked by Katie
  280. Human Services

    on a intake what are physical factors?

    asked by Corliss
  281. Math: Word Problem/Percets

    Stevie bought a stereo for $220 and put it on sale at his store at a 70% markup rate. What was the retail price of the stereo?

    asked by Kayla
  282. math PERCENTS

    Can you check these i need to indicate if a - less than 1% b- greater than 100% c- between 1% and 100% 1) 1/2 -- a 2) 4/3 -- b 3) 2/300 - a 4) 3/10 -- a 5) 10.8 -- b 6) 0.7 - a 7) 1.4 -- b 8) 0.06 -- a 9) 1.03 -- b 10) 0.009 - a 11) 0.635 --a 12) .0053 --a

    asked by marko
  283. Math

    If A, B, and C stand for different digits, and BA+AC=BCA, what digits do A, B, and C represent? Please Help!

    asked by Beth
  284. chemistry

    ihave two solutions. in the first solution , 1.0 moles of sodium chloride is disslved to make 1.0 liters of solution . in the second one, 1.0 moles of sodium chlorine is added to 1.0 liters of water.is the molarity of each solution the same?

    asked by wendy
  285. Math Pattern Help

    Math Pattern Help - TO: Reiny, Monday, February 13, 2012 at 10:35pm Based on what you said this is what I came up with. Did I do the rest of the pattern correctly? Thank you so much for your help. X y 1 9 2 8 3 7 4 6 8 2 10 0 12 -2 15 -5 20 -10

    asked by TO: Reiny
  286. science

    i have no idea what to do for my manatee onclusion. Any ideas for what to say?

    asked by matt
  287. Math Help

    Please break down and explain answer. Thank you: You make a bag of candy for yourself before you go to the movies. The bag consists of many different pieces of candy with Skittles, M&Ms, Life Savers, and Sour Patch Kids. Half of your pieces of candy are

    asked by Desperate Please Help
  288. hsitory

    Which of the following is the study of governmental institutions and processes? A. geography B. political science C. sociology D. economics

    asked by Sariah
  289. business mathematics

    What is the cash discount and net amount paid if the gross amount of the invoice or freight paid is 7000$, freight charged is 100$, date of invoice is 4/8, terms of service is 2/10, n/60, and date of payment is 4/15?

    asked by jeff
  290. Math

    If A, B, and C stand for different digits, and BA+AC=BCA, what digits do A, B, and C represent? Please Help!

    asked by Beth
  291. Calculus

    Find each function, find f(a+h) and f(a+h)-f(a) a) f(x)=5x-2

    asked by Jake
  292. Physical Geography

    38 degrees celcius is what degree F?

    asked by Janice
  293. Math

    The population of a town increased from 55,370 to 162,240 in one decade. What was the percent change of the population?

    asked by Marche
  294. electron configuration shorthand method?

    I missed school today so the hw is a bit confusing and I have a quiz on this tmr. For example I have Br which has 35 electrons. [Ar]_______ and then what do I do? How do I know what to put next? how would you do Phosphorus? thanks!

    asked by skye
  295. Physics

    A box is being moved with a velocity (v) by a force (p)(parallel to v) along a level horizontal floor. The normal force is (Fn), the kinetic frictional force is (fk), and the weight of the is box is (mg). Draw a free-body diagram of this situation

    asked by Amy
  296. physics

    A person is riding on a Ferris wheel of radius R. He starts at the lowest point of the wheel. When the wheel makes one complete revolution, is the net work done by the gravitational force positive, zero, or negative? Do you need to know how the speed of

    asked by Amy
  297. physics

    A 50-kg block is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 150 N. Fp is parallel to the displacement of the block. The coefficient of kinetic friction is 0.25. A) What is the total work done on the block? B) If

    asked by Amy
  298. Physics

    A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 140 N. Fp is parallel to the displacement of the block. The final speed of the block is 2.35 m/s. A) What work did the friction do

    asked by Amy
  299. math fraction to percent

    can you check these? i need to write each fraction or decimal as a percent round to nearest tenth of a percentif necessary? 21) 7/5 = 140% 22) 137/100 = 137% 23) 0.8/100 = .8% 24) 21/4 = 525% 25) 17/10 = 170% 26) 65/40= 163% 27) 37/20 = 185% 28) 7/500 =

    asked by marko
  300. math

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools

    asked by dee
  301. Pre Cal

    A certain strain of bacteria divides every four hours. If a colony is started with 10 bacteria, then the time t (in hours) required for the colony to grow to N bacteria is given by t = 4(log(N/10)/log2 Find the time required for the colony to grow to one

    asked by Melek
  302. math decimal as percent

    can you check these: i need to write each decimal as a percent: 30) 0.03 == .3% 31) 1.8 = 180% 32) 0.0025 = .25% 33) 5.3 = 530% 34) 0.0041 = .41% 35) 0.083 = 8.3% 36) 0.0009 = .09% 37) 0.83 = 83% 38) 20 = 2000%

    asked by marko
  303. chemistry

    why is AgNO3 stored in an amber bottle

    asked by faith
  304. math % tas a decimal and fraction

    can youcheck these i need to write each percent to a decimal and a fraction in simplest form: 39) 175% d- .00175 f: 7/4000 40) 120% d: .00120 f: 6/5000 42) 5/8% d: 62.5 f: 62 1/2 44) 8 1/4% d: 8.25 f: 8 1/4

    asked by marko
  305. calculus

    Determine whether the given function is continuous. If it is not, identify where it is discontinuous.

    asked by Anonymous
  306. Geometry

    Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.

    asked by Rachel
  307. History

    Which of the following is NOT something a geographer can explain to a historian? A.why people populated certain areas B.how people change their environment C.how the environment changes people D.why people like other people I know is D but i need accurate

    asked by Sariah
  308. Microbiology

    Two types of prokaryotic cells have been distinguished: bacteria and archaea. How do these cells differ from each other? How are they similar?

    asked by myoius
  309. Physics

    Pepper pulls a 20.0 kg object along the floor accelerating at 2 m/s/s, and μ = .2. How much work has he done while pulling the string 5.0 m? If it takes her 1.0 seconds, how much power has she used? If 1.0 kcal = 4184 J, and an Oreo has 50 kcal, how many

    asked by Sara
  310. Pre-calc

    If llull=1 and llvll=3, and the vectors maek angles of 170 degrees and 130 degrees with the x-axis respectively, find the component form of the sum of u and V. Please help thanks!

    asked by Casandra
  311. business

    1. Which way of asking for action carries the highest level of politeness? (Points: 5) A polite order An indirect request A question (*) An order 2. Which of the following statements most effectively applies the you-attitude? (Points: 5) "We began

    asked by sososola2012
  312. Calc

    Determine whether u and v are orthogonal, parallel or neither u= , v=

    asked by Darius
  313. Pre-Calc

    A force of 45 pounds is exerted along a rope attached to a crate at an angle of 30 degrees above the horizontal. The crate is moved 22 feet. How much work has been accomplished?

    asked by Holly
  314. Math

    Given that an English pound is worth $1.64, how much larger is a pound than a dollar? Answer in percentage terms

    asked by Marche
  315. Pre-calc

    Find the standard form of the complex number shown below 5(cos7pi/6 + isin7pi/6)

    asked by Casandra
  316. Calc

    Use DeMoivre's Theorem to find the indicated power of the following complex number (-6 + 6i)^4 Please help, i don't get this guys therom at all...

    asked by Janique
  317. goverment

    Federal regulatory agencies have responsibility primarily in the area of

    asked by j
  318. social studies

    Which of the following is NOT a true statement about historiography? A.It is never subject to change. B.It can affect the meaning of historical events. C.It can be defined simply as the writing of history. D.It influences how people see themselves and

    asked by Sariah
  319. Economics

    -The "Baby Boomers" are in their retirement age. What affect might this have on the productive capacity of a country's labor force? -How does consumer demand and the price mechanism influences demand in the factor market?

    asked by Maria