Questions Asked on
January 24, 2013

  1. math

    how do owners of large estates spend their time.

    asked by Richie6501
  2. Chemistry

    2. Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much algae will be in the pond after 12 hours? A.)720 pounds B.)360 pounds C.)1,440 pounds D.)114 pounds I think the answer is D.

    asked by Deborah
  3. algabre

    the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he needs this trip in a total

    asked by lee
  4. Physics

    Identical point charges of +2.1 ìC are fixed to diagonally opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find

    asked by Amy
  5. Physics

    How much work is needed to stop a 20g bullet moving with a speed of 150ms-1

    asked by Ehis
  6. Math

    Adam drew two same size rectangles and divided them into the same number of eqal parts. He shaded 1/3 of one rectangle and 1/4 of the other rectangle. What is the least number of parts into which both rectangles could be divided?

    asked by Mary
  7. Chemistry

    What mass of AlCl3 can be formed from 5.000 mol NiCl2 and 2.000 mol Al? Al(s) + NiCl2(aq) → AlCl3(aq) + Ni(s) I balanced it to 2Al + 2NiCl2 -> 2AlCl3 + 3Ni I'm not sure how to go about this. I converted the moles into grams, but I feel like the balanced

    asked by MewBanks
  8. Chemistry

    The neutralization of H3PO4 with KOH is exothermic. H3PO4(aq) + 3KOH(aq) -> 3H2O(l) +K3PO4(aq) +173.2KJ 70.0 mL of 0.207 M H3PO4 is mixed with 70.0 mL of 0.620 M KOH initially at 21.87 °C. Predict the final temperature of the solution if its density is

    asked by Sally
  9. Math

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 8 sin x, y = 8 cos x, 0 ≤ x ≤ π/4; about y = −1

    asked by Em
  10. Physics

    Identical point charges of +2.1 ìC are fixed to diagonally opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find

    asked by Amy
  11. Differential Equations

    The velocity v of a freefalling skydiver is well modeled by the differential equation m*dv/dt=mg-kv^2 where m is the mass of the skydiver, g is the gravitational constant, and k is the drag coefficient determined by the position of the driver during the

    asked by Erica
  12. physics

    A spring with an unstrained length of 0.074 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.1 X 10^3 kg

    asked by frustrated
  13. science (physics)

    What is the mass in kg of a 3920 N piano?

    asked by meme
  14. physics

    A stationary billiard ball, mass 0.17 kg, is struck by an identical ball moving at 4.8 m/s. After the collision, the second ball moves off at 60° to the left of its original direction. The stationary ball moves off at 30° to the right of the moving

    asked by Anonymous
  15. math

    how do owners of large estates spend their time

    asked by Richie6501
  16. pre-algebra

    You split $1500 between two savings accounts. Account A pays annual 5% interest and Account B pays 4% annual interest. After one year,you have earned a total of $69.50 in interest. How much money did you invest in each account?

    asked by em
  17. Chemistry

    Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water?

    asked by Lucy
  18. math

    what is the purpose of using fraction strips and a 1 strip

    asked by mm
  19. financial math

    Mary is buying several items that cost $128.25 total. She is using a store coupon for 35% off her purchases. She has to pay 4% sales tax. Calculate the total cost of the items.

    asked by Anonymous
  20. Math

    5. Suppose that the volumes of four stars in the Milky Way are 2.7 × 1018 km3, 6.9 × 1012 km3, 2.2 × 1012 km3, and 4.9 × 1021 km3. What is the order of the stars from least to greatest volume? A.) 2.7 × 1018 km3, 6.9 × 1012 km3, 4.9 × 1021 km3, 2.2

    asked by Deborah
  21. Chemistry- Someone please help ASAP- PLEASE

    A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound?

    asked by Vic
  22. geometry

    Two observers are 200 feet apart,in line with a tree containing a birds nest.The anles of elevation to the birds nest are 30 degrees and 60 degrees.How far is each observer from the base of the tree? Please help me my assigment is due tommorrow!!!!!

    asked by ian
  23. algebra

    Chase scored 14 points on Monday, and he doubled his score each day thereafter. How many points did he score on Thursday? A. 224 points B. 112 points C. 56 points D. 42 points Thanks :)

    asked by Laura
  24. Chemistry

    Hydroxylapatite, Ca10(PO4)6(OH)2, has a solubility constant of Ksp = 2.34 × 10-59, and dissociates according to Ca10(PO4)6(OH)2(s) --> 10Ca2+(aq) + 6PO43-(aq) + 2OH-(aq) Solid hydroxylapatite is dissolved in water to form a saturated solution. What is the

    asked by Angelyka
  25. math

    1. Corey needs 24 boards that are 47.5 inches How many feet of board should he buy and then explain. 2. If you can only buy 8 foot boards, how many should he buy? and then explain.

    asked by Karen
  26. Statistics

    It is believed that at least 60% of voters from a certain region in Canada favor the free trade agreement (FTA). A recent poll indicated that out of 400 randomly selected individuals, 250 favored the FTA. If we wished to perform a test to determine whether

    asked by Stanley
  27. Chemistry

    How many moles of bromine are there in a 0.35 mL dichloromethane solution of 10% bromine? Density of Bromine = 3.10g/mL Density of dichloromethane = 1.33g/mL

    asked by Nathan
  28. physics

    Two racing boats set out from the same dock and speed away at the same constant speed of 102 km/h for half an hour (0.500 h), the blue boat headed 26.1° south of west, and the green boat headed 38.8° south of west. During this half-hour (a) how much

    asked by Anonymous
  29. science (physics)

    A 980 N box has a mass of 100 kg. What is the acceleration of the box due to gravity?

    asked by meme
  30. Physics

    Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 41 km away, 24° north of west, and the second team as 33 km away, 37° east of north. When the

    asked by Stacia
  31. phy

    An electric kettle contains 1.5 kg of water at 100o C and powered by a 2.0 kW electric element. If the thermostat of the kettle fails to operate, approximately how long will it take for the kettle boil dry? (Take the specific latent heat of vaporization of

    asked by christ
  32. Social Studies

    6. How did the Dust Bowl affect farmers? A.) Crop prices rose and farmers grew rich off of the profits. B.) The Dust Bowl was in the city and didn’t affect farmers. C.) Farmers lost their crops and left their farms in search of work. D.) Farmers were

    asked by Deborah
  33. Physics

    A water wave is generated in a ripple tank by an oscillator that vibrates 50 times in 30 seconds. A given trough of the wave travels 50.0 cm in 15 seconds. What is the wavelength of the water wave? Produce all your workings. I got 50/30 = 1.67 vibrations

    asked by confused
  34. math

    Which of the following salaries will have a purchasing power of $24,035 if the inflation rate is five percent?

    asked by sheila
  35. chem(isotopic abundance)

    The average atomic mass of iridium is 192.22u, if iridium-191 has an atomic mass of 190.961u and an isotopic abundance of 37.3% and iridium-193 is the only other natural occuring isotope, what is the atomic mass of iridium-193? I tried but I don't think I

    asked by Deepa( Exam prep question)
  36. floral design

    One of your friends who works at a local public TV station knows that you wish to break into event-floral designing. She attended a party last week for which you had created an amazing set piece that surrounded a small dance floor. Impressed with your

    asked by Jamie
  37. Physics

    When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean position? I have no idea.. i know that it has momentum ..but...

    asked by Physics fail
  38. Chemistry

    For melting point determination, what is the optimum rate of heating near the melting point? What are the problems, if the rate of heating is too slow or fast?

    asked by Sunday
  39. algebra

    A sheet of cardboard with an area of 10 square feet is made into a closed rectangular box. The four sides of the box have the same area and two ends have the same area. The area of each of the four equal sides is twice the area of each end. What is the

    asked by morgan
  40. Physics

    Four resistors each of resistance 4 Ù are connected to form a square loop. What is the equivalent resistance between two points on its diagonal AC or BD? A-------------D | | B-------------C That's what it looks like on my homework. Thank you in advance

    asked by Physics fail
  41. math

    A farmer needs to fence a rectangular piece of land.She wants the length of the field to be 55 feet longer than the width. If she has 1310 feet of fencing material, what should be the length and the width of the field?

    asked by stephanie
  42. World history; Check:P

    5.What does Hebrew law required of believers? The Hebrews were to "worship God and live justly with one another", God required you "to do justice, to love kindness, and walk humbly with God". And worship only one God, which was him.

    asked by Victoria
  43. math

    Seigi and Gavin both worked hard over the summer. Together, they earned a total of $425. Gavin earned $25 more than Seigi. Hoe much did each of them earn??

    asked by lavanity
  44. algebra

    siplify and state any restrictions on the variables. x-2/x+3 plus 10x/x^2-9 Hope someone can explain this to me.

    asked by lee
  45. English-Grammar

    Decide if the underlined pronoun (I put what was underlined in parentheses) in the sentences below is being used as a subject, a predicate nominative, or an appositive. (He) and Bev are using the new computer. subject (my answer)predicate nominative

    asked by Anon
  46. physics

    A block with mass = 5.0 rests on a frictionless table and is attached by a horizontal spring ( = 130N ) to a wall. A second block, of mass = 1.35 , rests on top of the block . The coefficient of static friction between the two blocks is 0.40. What is the

    asked by steve
  47. Physics

    A pendulum clock is accurate on earth, where the period of its pendulum is 1.00 s. (a) Find its period on the moon, where gravitational acceleration is 1.6 m/s2. (b) During a 2 h interval, what would be the elapsed time shown on the clock? CAN YOU PLEASE

    asked by Mike
  48. Physics

    Which of the following equations describes the condition for observing the fourth bright fringe in Young's double-slit interference pattern? Assume n = 0 for the central bright fringe. Which of the following equations describe the condition for observing

    asked by confused
  49. physics Electricity

    Two tiny conducting spheres are identical and carry charges of -20.0 μC and +50.0 μC. They are separated by a distance of 2.50 cm. (a) What is the magnitude of the force that each sphere experiences, and is the force attractive or repulsive? (b) The

    asked by frustrated
  50. math

    Jeff bought a refrigerator for $1300. He made a 10% down payment and financed the rest at 6% for one year. How much interest did he pay?

    asked by Ricky
  51. math

    how do owners of large estates spend their time

    asked by Richie6501
  52. math

    how do owners of large estates spend their time

    asked by Richie6501
  53. Physics

    An animal-rescue plane flying due east at 36.0 m/s drops a bale of hay from an altitude of h = 69.5 m, as shown below. If the bale of hay weighs F = 162 N, what is the momentum of the bale the moment before it strikes the ground? Give both magnitude and

    asked by Anonymous
  54. Math

    Find the decibel intensity level at a rock concert if the intensity was measured at 3.98x10^-3

    asked by Mike
  55. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  56. Chemistry

    The half-life of C-14 is 5700 years. If it took seven half lives for a sample of C-14 to decay completely, how many years would have gone by?

    asked by Mari
  57. chemistry

    if the relative atomic mass of natural copper is 63.54,calculate the proportions of the isotope 65cu and 63cu

    asked by etim sylvester
  58. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  59. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  60. Physics

    A 1365-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 12.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?

    asked by Anonymous
  61. chem

    a simple hwk question.. i don't understand what i need to do.. 1-butanol (shown below) burns in the presence of oxygen to give off carbon dioxide and water by the following reaction: C4H9OH + 6 O2 ==> 4 CO2 + 5 H2O If 40.88 mL of 1-butanol burns

    asked by wll.i.am
  62. Physics

    You hang mass m=0.22 kg on a spring with constant 12 N/m. You pull the mass down a distance of 0.04 m from its equilibrium position and release it. You measure the period to be 0.85 s. If you instead pull the mass down 0.12 m from its equilibrium position

    asked by Julia
  63. Spanish (Please Help)

    1. Write the verb form for: yo/hacer. 2. Write the verb form for: ellos/hacer. 3. Write the verb form for: nosotros/hacer. I'm not sure, but I think these are the answers: 1.) Hago 2.) Hagan 3.) Hagamos Thnk You.

    asked by Brendon
  64. phy

    Calculate the average translational kinetic energy of a nitrogen molecule at 27 degree celcius

    asked by christ
  65. math

    Jenna is going to paint one wall of her bedroom gray. She needs a gallon of paint. A gallon costs $17.00 and one quart of paint costs $4.39. Which is the better buy?

    asked by Anonymous
  66. Physics

    A patio swing is suspended by two springs, each of which has a force constant of 415 N/m, equivalent to a single spring force constant of 830 N/m. Find the mass of a person sitting on the swing oscillating up and down at a frequency of 0.590 Hz. Please

    asked by Mike
  67. Physics

    A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 6 g. Find the reading of the

    asked by Mike
  68. Physics

    What is the angle of refraction of a light ray that enters the surface of a calm lake from air at an angle of 45o to the normal? The refractive index of water is 1.333. I don't even know how to start this or what the formula is. Thanks for your help in

    asked by confused
  69. chemisrty

    how many grams of cai2 are present in 3.28 moles? Can someone explaine how to do this question as well?

    asked by omar
  70. math help

    Brand x cost $1.56 for 12 ounces. Brand y cost 2 ¢ more per ounce. What is The cost of 15 ounce of brand y

    asked by marie
  71. physics

    A block with mass = 5.0 rests on a frictionless table and is attached by a horizontal spring ( = 130 ) to a wall. A second block, of mass = 1.35 , rests on top of . The coefficient of static friction between the two blocks is 0.40. What is the maximum

    asked by victor
  72. English

    Read the clauses. Then write main or subordinate for each clause. if the clause is a subordinate clause add a main clause to make it a complex sentence Before I go to school Subordinate Before I go to school I take a shower We heard a concert at Town Lake

    asked by Jerald
  73. chem hwk

    a simple hwk question.. i don't understand what i need to do.. 1-butanol (shown below) burns in the presence of oxygen to give off carbon dioxide and water by the following reaction: C4H9OH + 6 O2 ==> 4 CO2 + 5 H2O If 40.88 mL of 1-butanol burns

    asked by wll.i.am
  74. Physics

    Find g at a point on earth where T = 2.249 s for a simple pendulum of length 1.250 m, undergoing small-amplitude oscillations. (Enter your answer to four significant figures.) CAN YOU PLEASE PROVIDE AN ANSWER WITH WORK . THANK YOU VERY MUCH!!!!!

    asked by Mike
  75. Physics

    If sound is increased in intensity by a factor of 100,000, what is the change in decibels? I thought 50? other options are 5, 500, and 100,000. Please explain because I'm confused on how this works.

    asked by Physics fail
  76. English

    Read the sentences combine them by changing one sentence into a phrase 1.Alexis helps people understand the exhibits. Alexis is a guide at the museum. Alexis, a guide at the museum,helps people understand the exhibits. 2.Settlers built new towns in Texas.

    asked by Jerald
  77. Enlish

    I'm supposed to be writing an essay and these are the instructions: This semester you read several memoirs, including pieces by Ernesto Galarza and Russell Baker. Return to “Barrio Boy” and “No Gumption” now. How are these two memoirs similar? How

    asked by studeny
  78. Math

    The first ferris wheel was built in1893 in Chicago. It's diameter was 250 feet.how many feet did the ferris wheel rotate with each complete turn?

    asked by Kimmmee
  79. Physics 1

    A ball starts from rest and rolls down a hill with uniform acceleration, traveling 150 m during the second 5.0 s of its motion. How far did it roll during the first 5.0 s of motion?

    asked by Heather
  80. Calculus 1

    (a) What is the continuous percent growth rate for P=130e^0.07t , with time, t , in years? (b) Write this function in the form P=P0a^t. What is the annual percent growth rate? Round your answer to two decimal places. I tried it but now I'm just more

    asked by molly
  81. math

    The ratio of mystery books to the number of science fiction books is 4:3. The number of sci-fi books to the number of biographies is 4:5. If there are 48 sci-fi books what is the total number of books

    asked by Ben
  82. physics

    A block with mass = 5.0 rests on a frictionless table and is attached by a horizontal spring ( = 130N ) to a wall. A second block, of mass = 1.35 , rests on top of the block . The coefficient of static friction between the two blocks is 0.40. What is the

    asked by steve
  83. physics

    A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?

    asked by frank
  84. phy

    A piece of plastic barely floats in water. If it has a mass of 20g, what is its volume?

    asked by christ
  85. Physics STUCK!

    A point on the A string of a guitar oscillates in approximately simple harmonic motion with a frequency of 113 Hz and an amplitude of 1.04 mm. Find the maximum speed and acceleration of this point. SOLVE FOR: vmax = amax Can you please provide me with the

    asked by High School STUDENT
  86. World history; Check:P

    How did environmental features in Anatolia help the Hittites advance technologically? The Hittites were the first to use iron for weapons, because the materials they needed were easily in the mountains of Anatolia. Iron was easy to get to for the Hittites

    asked by Victoria
  87. Physics

    A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1/6g Find the reading of the spring

    asked by Mike
  88. chemistry

    when silver nitrate reacts with hydrochloric acid, what type of reaction takes place?

    asked by hazel
  89. Math

    A bag contains 12 slips of paper of the same size. Each slip has one number on it, 1-12. Find P(even number). Find P (a number less than 6). Find P (an odd number). Find P (a number greater than 8).

    asked by Ricardo
  90. Chemistry

    a 15ml sample of sulfuric acid was titrated against a solution of .0100 mol per litre of sodium hydroxide. to bring about neutralization, 25.00 ml of sodium hydroxide solution was required. calculate the concentration of the sulfuric acid

    asked by Omaaaaaaaar
  91. CHEM! (SCIENCE) NEED HELP

    Balance the equation; ___Mg+__HCI->__MgCI2+__H2 How many moles of hydrogen gas are produced when 3.0 molesbof magnesium react?

    asked by tyneisha
  92. chemistry

    calculate the rate of a constant reaction at 293 kelvin when the energy of activation is 103 kilo joules per mole and the rate constant at 273 kelvin is 7.87*10 to the power -7...

    asked by Emeldah
  93. Chemistry.

    Caculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. A.) n=3->n=2 B.) n=4->n=3 C.) n=2->n=1 How do you do this. Could you please just show me step by step for atleaset one. Please!

    asked by Brenda
  94. Math trigonometry

    Prove sinA/1+cosA =tan1/2A

    asked by Riley
  95. Physics

    A plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. What is the plane's velocity in respect to the ground in standard position? I know the answer, but can't figure out how to get the answer. Any help would be

    asked by A
  96. pstat.................HELP........................

    Electric motors coming off two assembly lines are pooled for storage in a common stockroom, and the room contains an equal number of motors from each line. Motors are periodically sampled from that room and tested. It is known that 10% of the motors from

    asked by JORHO
  97. CHEM! (SCIENCE) NEED HELP

    According to the reaction below,if 24 moles CO2 were produced,how many moles of C2H6 were reacted? 2C2H6+7O2 -> 4CO2+6H2O

    asked by tyneisha
  98. Introduction to management

    Young, innovative, or high-tech firms often adopt the strategy of ignoring history or attempting to do something radically new. In what ways might this strategy hinder them?

    asked by Mary
  99. Math

    After 14 boys leave the concert, the ratio of boys to girls is 3 to 10. If there are p girls at the concert, write an algebraic expression for the number of boys at the beginning of the concert in terms of p

    asked by Sophia
  100. physics

    A 6.2 g piece of clay is propelled horizontally onto a block of wood with a mass of 18.4 g. The wood block is initially at rest on a 1.75 m tall post. After the collision the wood block will land 2.2 m from the base of the post. Find the initial speed of

    asked by Greyson
  101. English

    Read each sentence. Write whether the sentence is declarative interrogative imperative or exclamatory 1.Use caution when you cross the street. Imperative 2.Where was Lyndon B. Johnson born? Interrogative? 3.The planet closest to the sun is Mercury.

    asked by Jerald
  102. Statistics

    Which of the following statements is not true about samples that can be treated as matched pairs data? I. Data collected on these samples is analyzed by calculating the differences between paired observations and using that data in one sample tests. II.

    asked by Bob
  103. math

    angle ABC and DEF are supplementary angles. the measure of DEF is 20 degrees less than 3 times the amount of ABC. what are ABC and DEF.

    asked by hunter
  104. financial acct

    Crowns issed 40,000 shares of $5 par value common stock for $14 per share. Prepare journal entries using a chart of acct.

    asked by cheryl
  105. math

    What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%. b)RM1, 000 to be received 8 years from now discounted back to present at 3%.

    asked by Lily
  106. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  107. Chemistry

    If a 100.0 gram sample of a radioactive isotope goes through three half-lives, how much of the original radioactive isotope will remain?

    asked by OhSnap
  108. phy

    At what temperature will the root-mean-square speed of oxygen molecules have the value of 640 m/s? 1 kilomole of oxygen has a mass of 32kg.

    asked by christ
  109. chem.(sci)

    ___NH3+___O2->N2+H2O (this is not balanced) how many moles of oxygen react with 0.23 moles of NH3? HOW many moles moles of N2 will be produced when reacted with 5 mol of O2?

    asked by tyneisha
  110. History

    8. What happened to Japanese Americans during World War II? A.) They were forced to leave the country. B.)They stayed in their homes. C.) They all joined the Japanese army. D.) They were sent to internment camps. I think it is C. Thank You.

    asked by Tommy
  111. physics

    The temperature of the air outside on a cool morning is 11„aC.What is this temperature on the Kelvin scale?

    asked by mio
  112. Math

    Rusty is building a doghouse for his dog, Wheezer. He is making the dimensions of the doghouse proportional to his own house, which has a length of 54 feet and a width of 36 feet. If wheezer's new home is going to have a length of 6 feet, what will be the

    asked by Arelle
  113. Chemistry

    I need to solve latent heat. It gives me the number of ice cubes and the mass in grams (7550 grams). It wants to know how many calories would burn turning the ice into body temperature water (if body temp is 37 degrees celsius.) It gives Lm of H2O=1,44

    asked by Lori
  114. Physics

    A series combination of two resistors of resistance 12 Ù and 8 Ù is connected across a source of emf 24 V. What is the potential difference across 8 Ù resistors? Do you know the formula for this?

    asked by struggling student
  115. chemistry

    what volume of .025 M hydrochloric acid will neutralize 150 milliliters of .0133 M sodium hydroxide?

    asked by jessica
  116. pstat.................HELP........................

    A diagnostic test for a disease is said to be 90% accurate inthat if a person has the disease, the test will detect it withprobability 0.9. Also, if a person does not have the disease, thetest will report that he or she does noot have it with

    asked by JORHO
  117. Physics

    The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds

    asked by Adrian
  118. Physics

    The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds

    asked by Adrian
  119. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  120. CHEM! (SCIENCE) NEED HELP

    Determine the moles of aluminum acetate,AL(C2H3O2)3,that can be made if you do this reaction with 12 moles of acetic acid (C2H3O2H) C2H3O2H+AL(OH)3->AL(C2H3O2)3+3H2O

    asked by tyneisha
  121. phy

    Calculate the electric power which must be supplied to the filament of of a light bulb operating at 3000K. The total surface area of the filament is 8×10−6m2 and its emissivity is 0.92.

    asked by christ
  122. phy

    A 0.5kg piece of metal (c = 600/kgK) at 300 degree celcius is dumped into a large pool of water at 20 degrees celcius. Assuming the change in temperature of water to be negligible, calculate the overall change in entropy for the system

    asked by christ
  123. Physics -- please help

    Brittany throws a slingshot pellet directly at a target that is far enough away to take 0.190 s to reach. How far below the target does the pellet hit? Enter m as unit. How high above the target should she aim? Enter m as unit.

    asked by Anthony
  124. math

    0.3 divided by 0.06 simplify the expression 2: 4+3 time 3-5 simplify the expression 3: a jogger on a treadmill is jogging at 5 miles per hour. which of the following is the time it will take him to jog 1 mile

    asked by sadrac
  125. World history; Check:P

    What methods did the Assyrians use when they attacked enemy cities? The satrapies were linked by a 2,500-kilometer highway, the most impressive stretch being the Royal Road, built by command of Darius I. Royal inspectors, the "eyes and ears of the king",

    asked by Unknown
  126. MATH -- INFINATE SOLUTIONS?? HELP!!

    Can anyone help me solve this problem; 2x + 3 = 2x + 4 - 1 and explain why there are an infinite number of solutions? Thanks!!

    asked by Muzzybunny
  127. chemistry

    What is the silver ion concentration in a solution prepared by mixing 385 mL of 0.380 M silver nitrate with 467 mL of 0.409 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12 I ended up making Ag+ = 2x. = 1.3 x10^-4 Which is incorrect so I'm not

    asked by Angelyka
  128. Teddy

    f(x,y) = 3x + 3y Show that for any epsilon in: |2x + 3y - 5| < epsilon There is a delta value: sqrt((x - 1)^2 + (y - 1)^2) < delta Solve for delta in terms of epsilon ------ I understand that this is a proof that the limit of f(x,y) as (x,y) -> (1,1) is 5.

    asked by calculus
  129. math (help please)

    Solve: 3 1/2+4 5/7

    asked by marie
  130. ALLIED HEALTH

    If you work in a hospital or doctor's office and assign numeric values to procedures and diagnoses for the purpose of reimbursement, you are a

    asked by SAM
  131. Statistics

    What is the P(H,H,T,T) on four flips of a coin?

    asked by Karen
  132. chemistry

    What mass of lead (II)chloride would precipitate if a solution containing 8,28 g of lead (II) ions(Pb2+) reacts with excess HCl?

    asked by maria
  133. math

    what amount of principal would yield an interest of $36 in 3 years at a 3% simple interest rate?

    asked by chad
  134. Probability

    Given the probability of rain on any given day in March is 1/5, find the probablity that: It rains on March 10 and 12, but not on March 11th. This is supposed to be used with multiplication Rule 1: P(A and B)= P(A)*P(B) cant figure it out, the answer is

    asked by anoneemose
  135. science

    A rocket is shot upward from the ground with an initial velocity of 15.5 m/s. How high does the rocket travel?

    asked by Missa
  136. algebra 1a

    Suppose that a car normally sells for $16,500 and is now on sale for $14,000. What is the percent of discount? If necessary, round your answer to the nearest tenth.

    asked by breanna
  137. Math

    If triangle ABC is similar to triangle DEF and the scale factor is 1:2 correspondingly, what is the measure of angle D is the measure of angle A is 45 degrees? Explain how you determined the measure of angle D.

    asked by Lalala
  138. chemistry

    What mass of solid magnesium hydroxide is needed to neutralixe .385 Liters of 2.5 M nitric acid?

    asked by jessica
  139. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  140. nursing

    For example: Kim, a neonatal ICU nurse, has cared for baby Sara for the past month. Baby Sara is about to be discharged today in good health. The baby’s parents want to give Kim a personal gift as an expression of their appreciation and have also invited

    asked by John
  141. Social Studies

    5. What agreement set the official border of the Louisiana Territory between Canada and the United States?

    asked by Jman
  142. Physics

    The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds

    asked by Adrian
  143. math

    Write the fraction in the simplest form. 12/56: 3/30: 5/25: 9/39: 6/54: 2/100: 8/18: THANKS

    asked by jade
  144. Physics

    The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds

    asked by Adrian
  145. maths

    A man's age is 4 times the combined age of a two sons. One of whom is 3 times as old as the other. In 24 years their combined ages will be 12 year less than their father's age . Find their respective age ????

    asked by tuhituhi
  146. maths

    I bought a certain number of apples at 4 for 6 paise and 3/5 of that number at 3 for 6 paise by selling them at 16 for rs.30p. I gained 24 paise.. How many apples did I buy????

    asked by tuhituhi
  147. CHEM! (SCIENCE) NEED HELP

    How many moles of water will form if the reaction has 9 moles of Cu? how many moles of NO will form if the reaction has 9 moles of Cu? 3Cu+8HNO3->3Cu(NO3)2+4H2O+2NO

    asked by tyneisha
  148. physics

    A block with mass = 5.0 rests on a frictionless table and is attached by a horizontal spring ( = 130 ) to a wall. A second block, of mass = 1.35 , rests on top of . The coefficient of static friction between the two blocks is 0.40. What is the maximum

    asked by steve
  149. Physics 101

    What is the net force of a 5.0 N force and an 7.0 N force acting on an object for each of the following conditions? (a) The forces act in opposite directions. ( )N (b) The forces act in the same direction.( )N ----------------------------------------------

    asked by reda
  150. math help

    A one year subscription to the monthly magazines costs $15.60 the regular newstand price is $1.95 per issue. How much is saved per issue by payin. The subscription price

    asked by marie
  151. math

    A sheet of cardboard measures 9 feet by 6 feet. Gina makes the entire sheet of cardboard into a closed box that is a perfect cube. What is the surface area of the box?

    asked by annette
  152. math

    Determine the energy to heat a cube of gold with a volume of 19.0{\rm cm}^{3} from 15^\circ C to 37^\circ C. (Figure 1) Refer to the tables of densities (Figure 2) and to the table of the specific heats (Figure 3)

    asked by Anonymous
  153. cultral diversity

    Help! check my answer Emergent literacy skills are significantly enhanced by a. the educational or professional level of one or both parents b. engaging in literacy events with other persons,especially adults. c.the family's socio-economic ststus and

    asked by ann
  154. English

    Read the following sentences write whether each underlined clause is the main clause or a subordinate clause What's the definition of a clause?

    asked by Jerald
  155. science is hardddd!!!!

    Can I Have An Example Of A Closed System?? Please use easy words that I can understand, Im not that smart and i'm only in 7th grade. Also can you give me an example of an Open System?? Thank You.

    asked by PLEASEEEE
  156. physics

    The temperature of the air outside on a cool morning is 11„aC.What is this temperature on the Kelvin scale?

    asked by mio
  157. Pattern blocks

    Make certain shapes using pattern blocks. How many blanks can fit in blanks ?

    asked by Sue
  158. maths

    A manufacture of furniture sells a sofa set to a retailer for Rs 23000.the retailer, inturn, sells the sofa set to a customer for Rs 29000.find the VAT rate as percent,if the retailer pays Rs520 as VAT.

    asked by Anonymous
  159. Calculus

    Find a solution to the equation if possible. Give the answer in exact form and in decimal form. 8=4sin(5x)

    asked by Mike
  160. math (help please)

    The rectangle was 21 inches long and 6 wide. What was the ratio of its length

    asked by marie
  161. Physics

    Find the length of a simple pendulum that completes 16.0 oscillations in 52.0 s. CAN YOU PLEASE EXPLAIN SPECIFICALLY , THANK YOU!

    asked by Mike
  162. Math

    The cheetah can 60 miles per hour. How many miles the can run for every half. Hour up to 2 hours?

    asked by Sheila
  163. Math

    The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. x = (y − 6)^2, x = 1; about y = 5

    asked by Em
  164. Chemistry

    A vessel containing 39.5 cm3 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 17.8 cm3 of ethanol, what was the

    asked by flame
  165. math

    mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O

    asked by xD
  166. math

    mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O

    asked by xD
  167. maths

    A manufacture of furniture sells a sofa set to a retailer for Rs 23000.the retailer, inturn, sells the sofa set to a customer for Rs 29000.find the VAT rate as percent,if the retailer pays Rs520 as VAT

    asked by Anonymous
  168. science

    An archer exerts an average force of 194 N to draw a 0.25 kg arrow back 1.2 m with the string of the bow. How much work does the archer exert?

    asked by Lindsey
  169. science (physics)

    50N 6kg - 2N

    asked by meme
  170. math

    lucienne and her class made 684 notecards for a school benefit. How many boxes of eight can they fill? Tell what you did with the remainder. Explain why. Please answer fast, im in a hurry D:

    asked by ASDFGH
  171. English

    Read each sentence identify and rewrite the subordinate clause 1. Adam studied for his science test because he wanted to do well. because he wanted to do well 2.You should turn the music down so that your brother can study. so that your brother can study

    asked by Jerald
  172. math

    You have 60 red socks and 30 blue socks unpaired in a drawer. You can not see the socks, they are in a drawer and it is dark. What is the minimum number of socks that you have to pull out before you have a matching pair?

    asked by Noah
  173. chemistry

    what mass of water is expected when 5.80 grams of sodium carbonate reacts with excess sulfuric acid? what volume of gas is produced at STP?

    asked by jessica
  174. chemistry

    what is the mass of the precipitate formed when 45.0 milliliters of .250 M barium chloride solution reacts with 2.00 grams of copper(II) sulfae pentaydrate?

    asked by jessica
  175. Hi Guys

    Hello, I just wanted to say thank you, thank you all for helping us with our homework and school. Thank you all. ^-^

    asked by ^-^
  176. science

    Suppose you are an astronaut making a spacewalk outside the space shuttle. In your excitement about your walk,you use up all the gas in your reaction jet. How do you get back to the shuttle

    asked by angel
  177. math

    what is 1/2 divided by 1/7

    asked by Anonymous
  178. English

    I must combine the following sentences in the most effective way. Is my answer correct? Sentences: 1. He didn't cover his vehicle with the traditional camouflage. 2. He covered it with his own drawings. My answer(s) - Not sure which is the best way: He

    asked by M
  179. CHEM! (SCIENCE) NEED HELP

    How many moles of CaCI2 will be formed if you react 1 mole HCI? How many moles of CaCI2 will form if you react 5.5 moles of CaCO3? 2 HCI+CaCO3->CaCI2+H2O+CO2

    asked by tyneisha
  180. Physics

    Light is incident from water onto a flat transparent slab of material, at an angle of 48.8° with the normal. The reflected ray and the refracted ray are perpendicular to each other. What is the index of refraction of the transparent substance?

    asked by Kiana
  181. physics

    How do i find the mass of an object if it took 270 J of work to move it 15 meters?

    asked by Anonymous
  182. Physics

    How does current change for resistors in series? What is the equivalent resistance for resistors in series?

    asked by Physics fail
  183. calculus

    On the graph of f(x)=7sin(7pi x), points P and Q are at consecutive lowest and highest points with P occuring before Q. Find the slope of the line which passes through P and Q

    asked by Turtle
  184. phy

    If a force of 80N extends a spring of natural length 8m by 0.4m what will be the length of the spring when the applied force is 100N

    asked by christ
  185. Chemistry

    Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

    asked by Raphael
  186. math

    the lateral area of cylinder is 96ð. if h=12, find r

    asked by mary
  187. Physics

    A 50.0 g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 17.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.00 ms, what is the magnitude of the average acceleration of the ball during

    asked by Robert
  188. Education

    The purpose of IQ tests is to A) define cognitive style. B) describe preferred learning style. C) predict scholastic performance. D) identify personality types. I think its C but would like a second opinion.

    asked by Lor
  189. geography

    why do you think the colonists finally decided to rebel against Britain?

    asked by Taylor
  190. math

    where N is the number of millions of passenger cars in the United States and t is the number of years after 1940. In what year was the number of passenger cars triple the number of cars in 1940?

    asked by sam
  191. Pre Calculus 12

    Identify the point on the unite circle coressponding to an angle of 300 degrees in standard position A (-√3, -√3/2) B (-√3/2, 1/2) C (1/2, -√3/2) D (1/2, -√3 ) I don't get how to figure this out :|

    asked by Shreya
  192. math

    complete the table for the equation y=x+6

    asked by Courtney
  193. Algebra

    You are planning to build a walkway that surrounds a rectangular garden that is 10ft by 9ft. The width of the walkway around the garden is unknown, but it will be the same on every side. a)what is the perimeter of the walkway along the outer edge ? b) what

    asked by Naibe
  194. physics

    Two racing boats set out from the same dock and speed away at the same constant speed of 94.0 km/h for half an hour (0.500 h), the blue boat headed 26.0° south of west, and the green boat headed 38.2° south of west. During this half-hour (a) how much

    asked by ...
  195. Algebra

    Find the function of f(0), f(3), and f(-3)

    asked by tootles
  196. precalc

    1. Write an equation of the following using the particular function. 1. The function is sine. The amp is 2 and the domain is [0, 2]. I got y=2sin(pie(x)) but i plugged that in my calc and it doesnt look like the graph on my worksheet 2. The function is

    asked by Rebekah
  197. math help

    The price was reduced from four thousand, four hundred ninety six dollars to one thousand, eight hundred ninety three dollars. By how much was the price reduced

    asked by marie
  198. math help

    What decimal number is halfway between 14 and 15?

    asked by marie
  199. science

    Th thermosphere is 415km deep. What percent of the atmosphere made up by the thermosphere if the total atmosphere extends 500km.

    asked by Mikayla
  200. math

    can you show me pics of 3dimesional shapes

    asked by Erial
  201. math - grade 7

    determine the diameter of a circle with a radius of 4.26m. determine the area of the circle with diameter is 8mm.

    asked by deb
  202. math help

    Solve: 5 1/3-3 5/6

    asked by marie
  203. Socials

    What effect did the Hudson Bay Company's history have on Canada today?

    asked by Raman
  204. M.I.G

    Can a right-angled triangle be an isoscele triangle?

    asked by njebo
  205. Math

    f(x)=3/(x+1) g(x)=(x^3)/5 h(x)=x^2+7x+10 a. f(x)=10 b. f(x)=g(x) c. g(x)=h(x) d. f(x)=h(x) I am told to solve the equations, but the term "solve" is so vague. I don't know what I'm doing. Please help lead me in the right direction. Thank you.

    asked by Morgan
  206. English

    Read the following sentences write whether each underlined clause is the main clause or a subordinate clause The words in () are the underlined clause. We studied the Mayan calender, (which I thought was fascinating) subordinate Lyndon B. Johnson, (who was

    asked by Jerald
  207. Pre-Calculus

    Could you please explain how to use a matrix (matrices) to solve a system of linear equations (two variables)? My book doesn't explain it in a way I can understand. Please and thank you.

    asked by Caroline
  208. Business

    Ms.Sue Describe methods you would use to analyze one of these three different markets: consumer, industrial or international markets. What challenges would you face to ensure accurate data gathering in the market and what recommendations would you make to

    asked by Quita
  209. math

    Adam place RM2, 000 in a saving account paying 5% interest compounded annually, how much will Adam account accrue to in 10years and 15years

    asked by Lily
  210. math

    What is the present value of RM6, 500 to be received 10 years from today if our discount rate is 10%?

    asked by Lily
  211. math help

    Solve: 0.091=1-z

    asked by marie
  212. Precalculus

    I asked this yesterday but I was told my answer was incorrect by my professor. ln x^5 - ln x^2 = 3 solve for the unknown. I have reviewed my Log laws but yet I still cannot figure out what the answers are. The question asks for me to write all answers as a

    asked by George
  213. American History

    docs(DOT)google(DOT)com/file/d/0B3_sydO5xXRZOUpwTVZIbUdvNXM/edit I have to write a childrens book(3rd-4th grader) for a history project. I have to somehow incorperate/represent the cold war, containment, truman doctrine, domino theory, and korean war. I

    asked by Daniel
  214. Code of Ethics

    For example: Kim, a neonatal ICU nurse, has cared for baby Sara for the past month. Baby Sara is about to be discharged today in good health. The baby’s parents want to give Kim a personal gift as an expression of their appreciation and have also invited

    asked by Cindy
  215. algebra 2

    A chauffer must decide between driving his clients in the rolls royce or the mercedes benz. the rolls royce costs 1.75 per mile to operate and the mercedes benz costs 2.00 per mile. The chauffer can charge 4.00 per mile for the rolls royce and 6.50 per

    asked by Elizabeth
  216. chemistry

    calculate the rate of a constant reaction at 293 kelvin when the energy of activation is 103 kilo joules per mole and the rate constant at 273 kelvin is 7.87*10 to the power -7...

    asked by Emeldah
  217. english

    i want to know more about the who what where why and how of robert falcon scott and the terra nova expedition

    asked by rose
  218. science

    A rocket is shot upward from the ground with an initial velocity of 15.5 m/s. How high does the rocket travel?

    asked by Missa
  219. college algebra

    From 1988 to 2008 average annual tuition and fees at public colleges increased from $525 to $5500. Calculate the percent change over this time period. How do I set this up and solve it? Thanks for your help:-)

    asked by debbie
  220. maths

    y= tan(2tan^-1x/2), show that dy/dx= 4(1+y^2)/4+x^2

    asked by saadia
  221. biology

    Mode of formation of nutrition(two pages)

    asked by chi
  222. english

    The antonyms of ignore,optimistic,humility,indolent,boring,attack,normal,innocuous,preserve,commence

    asked by chi
  223. science

    how to calculate calories is food

    asked by bob
  224. medical transcription 2

    I need help finding an answer in the Diagnostic imaging/interventional radiology TE #13, which is MRI brain for Edgar jorda. The part where it says: "The ________ appears minimally changed from the study..."

    asked by Sara
  225. Spelling

    Is constant a vc/ccv or a vcc/ccv

    asked by Estefany
  226. Chemistry

    What is the density, in grams per liter, of N subscript 2 gas at STP

    asked by Michelle
  227. calc

    integral (x^2+x-1)/(x+1) dx can you please explain maybe not step by step but not just the answer please thanks

    asked by kmac
  228. math

    mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O

    asked by xD
  229. math

    A bag contains 12 slips of paper of the same size. Each slip has one number on it, 1-12. Describe an impossible event.

    asked by Ricardo
  230. Chemistry

    I need to solve latent heat. It gives me the number of ice cubes and the mass in grams (7550 grams). It wants to know how many calories would burn turning the ice into body temperature water (if body temp is 37 degrees celsius.) It gives Lm of H2O=1,44

    asked by Lori
  231. Lang Arts

    2. Which verb correctly completes the below sentence? The collection written by several of my favorite authors _____ research in the rainforest. *discuss discusses 4. Because Anne refers to the bumper sticker as “everlasting punishment,” you can infer

    asked by Jman
  232. economics business studies maths literacy tourism

    what are the courses for these subjects and careers

    asked by amacio
  233. phy

    An engine absorbs 2000J of heat from a hot reservoir and expels 750J to a cold reservoir during each operating cycle. What is the power output of the engine if each cycle lasts for 0.5 seconds?

    asked by christ
  234. English

    conclusion of the story

    asked by Anonymous
  235. english

    I must combine the following sentences in the most effective way. Is my answer correct? 1. Walter loved animals. 2. He especially loved watching them in the forest near his Missouri home. My answer: Walter loved animals, especially watching them in the

    asked by M
  236. English

    How do you pronounce "Draven" in "Jamie Draven"?

    asked by rfvv
  237. English

    Question: How can I rewrite this sentence to maintain the 3rd person academic tone? Is my answer correct? 1. You have probably figured out that the boy named Walter was Walter Elias Disney. My answer: One has probably figured out that the boy named Walter

    asked by M
  238. math

    lucienne and her class made 684 notecards for a school benefit. How many boxes of eight can they fill. Tell what you did with the remainder. Explain why.

    asked by Troller
  239. Math

    calculate average rate of change 6, Y= -6x^2 - 3, 0

    asked by Kush
  240. chemistry

    3. Find the molarity of a solution made from 734 g of Li2SO4 and 2.5 L of water

    asked by Sam
  241. chemistry

    what mass of water is expected when 5.80 grams of sodium carbonate reacts with excess sulfuric acid? what volume of gas is produced at STP?

    asked by jessica
  242. Math PLEASE

    It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up

    asked by Aliza
  243. College Math

    how to construct a truth table for q w/upside down v~p, using the following: P: this is an orange q: the monkey is tall

    asked by Althea
  244. English

    I must improve the organization of these four sentences of a paragraph in the most effective way. Is my answer correct? Sentences: 1. The reader has probably figured out that the boy named Walter was Walter Elias Disney. 2. During his lifetime Disney and

    asked by M
  245. Calculus (differentiation)

    (a) Let f(x) = x^(1/x) for all x>/=1. Find the greatest value of f(x). (b) By (a), find a possitive interger m, such that m^(1/m) >/= n^(1/n) for all positive intergers n.

    asked by Anonymous
  246. chemistry

    a racing tire has a pressure of 148 kPa at 19 degrees Celcius. What willthe pressure be at 42 degrees Celcius, assuming the volume remains the same?

    asked by jessica
  247. Calculus (differentiation)

    (a) Let f(x) = x^(1/x) for all x>/=1. Find the greatest value of f(x). (b) By (a), find a possitive interger m, such that m^(1/m) >/= n^(1/n) for all positive intergers n.

    asked by Anonymous
  248. Math PLEASE

    It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up

    asked by Aliza
  249. chemistry

    if a 3.72 gram sample of nitrogen occupies a 2.50 liter container at 1.08 atm, what is the temperature in Celcius?

    asked by jessica
  250. Medical Terminology

    when comparing Hemodialysis and Peritoneal dialysis, it can be said that?

    asked by Jane
  251. science

    How to determine the amount of energy released when 50g of 100C steam changes to 0C ice?

    asked by maggie
  252. Calculus 3

    Find the equation of the plane that passes through (1,0,0) and is perpendicular to the line r=+t. The vector equation of a plane is n*(r-rsub0)=0. Thank you so much for your help!

    asked by Heather
  253. aig math(Ms.Sue)

    Both Todd and Zack earn the same salary. Todd spent $716 and Zack spent $128. Then Zack had 4 times the amount of money Todd had left. How much is their salary? Please tell me how and what your answer is?

    asked by May
  254. English

    Read each sentence. Underline the compound subject compound verb or compound direct object Shakespeare wrote plays and sonnets I underlined plays and sonnets That musician writes and plays his own music I underlined writes and plays People ski and

    asked by Jerald
  255. algebra

    If a car goes 0-85mph in 500' How many seconds does it take to get there?

    asked by justin
  256. Medical

    This 35 year old female patient has carcinoma of the upper-outer left breast. She had a lumpectomy performed and a sentinel lymph node biopsy of the axillary lymph node. The pathology report for the lymph node states no pathological change. what ICD-9 code

    asked by Billie
  257. Literature

    I need a good Participle Phrase sentence in the story of Le Morte D' Arthur, Can anyone help me??

    asked by Joseph
  258. English

    Read the sentences Combine them to make a compound sentence using a comma and the coordinating conjunction in () We had a great time at the beach. I can't wait to go back (and) We had a great time at the beach, and I can't wait to go back. The marathon was

    asked by Jerald
  259. maths

    The price of 13m cloth is as much less than rs.50 as the price of 27m exceeds rs.29. Find the price per meter?????

    asked by tuhituhi
  260. maths

    Divide rs 13.26 between A,B and C , so that B's share is twice the share of A and A's share is 1/3 of C's share?????

    asked by tuhituhi
  261. math

    what is the average of 4,12,23,11 and 5

    asked by Anonymous
  262. geography

    put these wents that led to the start of he American Revolution in the correct chronological order: a: declaration of 1763 b: french and Indian war c: Stamp act d: Boston Massacre e: pontac's rebellion f: Boston tea party g: townshend acts h: intolerable

    asked by Taylor
  263. Hiastory HURRY!!!!!!!!!!!!!!!!!!!!!!!

    Which of the following programs would have pleased Hoover the most? A. national medical care for all citizens B. voluntary relief efforts by church groups C. social security for old people D. federal unemployment payments

    asked by becka
  264. phy

    Tinny insects such as mosquitoes can seat on the surface of water. Which physical principle makes this possible?

    asked by christ
  265. phy

    Calculate the change in internal energy of 2kg of water at 90 degree Celsius when it is changed to 3.30m3 of steam at 100oC . The whole process occurs at atmospheric pressure. The latent heat of vaporization of water is 2.26×106J/kg

    asked by christ
  266. science

    a bicycle travel 12km in 40 min, what is its average speed

    asked by denise
  267. Pre calculus

    Log base 10(log base 8 8)=x

    asked by Aphrodite
  268. Education

    Bloom's taxonomy levels A) correspond directly to grade levels in constructing an action plan. B) help teachers to gauge the cognitive levels required for their objectives. C) identify at which step in the DID cycle instruction is occurring. D) indicate

    asked by Lor
  269. reading

    using the story "how it feels to be colored as me" what are the claim, premise, support, counterarguments, and argument

    asked by Anonymous
  270. math

    you fill up 40 gallon pool putting in 2 gallons water every minute, if someone scoops out 1 gallon every 8 minutes, how long would it take to fill the pool?

    asked by Lisa
  271. math

    there are two numbers that are 3 times as far from 19 as they are from 11. the sum of the two numbers is?

    asked by claire
  272. Education

    Multiple intelligences can best be measured by the Stanford-Binet IQ test. True or False

    asked by Lor
  273. General math

    7t-6=104

    asked by Michelle
  274. physical

    An asteroid in an elliptical orbit about the sun travels at 3.9 106 m/s at perihelion (the point of closest approach) at a distance of 3.7 108 km from the sun. How fast is it traveling at aphelion (the most distant point), which is 8.6 108 km from the sun?

    asked by ahmed
  275. Math

    Mrs coopers 5th grade class has 11 more girls than boys. There are 35 students in all. How many girls are there?

    asked by Chad
  276. Physics

    A filament bulb and a resistor are connected in series to a battery. Which of the following will contribute to the load of the circuit? A. Bulb B. resistor C. Bulb and resistor D. none I'm thinking the resistor, but I'm unsure. Thanks

    asked by Need some help
  277. math

    is eating an apple a physical change

    asked by Anonymous
  278. 5th grade math word problems

    If 300 napkins cost $1.69 and 100 napkins cost $.89, what is the least expensive cost for 1010 napkins?

    asked by Reece
  279. Math

    An investor invested money @ 5% and $49,000 more than 3 times the amount @ 11% and the total interest earned is $43190 How much did he invest at each amount?

    asked by Lynn
  280. 4th grade word problems

    if tiles at a store cost .$20 for a 1"x1" square and $.30 for 1"X2" rectangle what would be the cheapest way to buy tiles to make a tiled square 3 inches on each side.

    asked by Reid
  281. math

    is eating an apple a physical change?

    asked by Anonymous
  282. math

    is eating an apple a physical change?

    asked by Anonymous
  283. World History

    How did the struggle between rich and poor affect Athens and Spartens?

    asked by Dustin
  284. Algebra 1

    A car travels on a highway at an average speed of 65 miles per hour. What was the speed in feet per second? (Remember- 1 mile=5280 feet)

    asked by Dani
  285. Algebra 1

    Solve this proportion- 4/x+3=8/10

    asked by Dani
  286. math help

    The price was reduced from four thousand, four hundred ninety six dollars to one thousand, eight hundred ninety three dollars. By how much was the price reduced?

    asked by marie
  287. Algebra

    how can i break this down .2y+4.2=

    asked by barbara
  288. Math

    Contruct a triangle RST in a way that TR=31 mm, RS=62 mm and angle STR=60 degrees....

    asked by Faith
  289. math help

    Use digits to write eighty five hundred thousandths

    asked by marie
  290. math

    the sum of two twin numbers is 60 what are the number

    asked by Deepa( Exam prep question)
  291. anatomy

    how many extremities are in the human body?... is it only two with is our upper extremity and lower body?... help!..thanks!

    asked by rose
  292. algebra 1

    The length of a rectangle is 5mm longer than it's width. It's perimeter is more than 30mm. Let w equal the width of the rectangle.. What could be a equation to support this??

    asked by lavanity
  293. math help!

    Solve: 18x=9*10

    asked by marie
  294. math help!

    The curtis car traveled an average of 21 miles per gallon of gas. At that rate, how far could the car travel on a full tank of 21 gallons

    asked by marie
  295. English

    Read the sentences Add the correct end punctuation to each one Do earthquakes occur in Texas ? The sound of sirens awakened us . For English class, what book will you read ? That's a giant fire ant mound ! Please put away your books . That player just made

    asked by Jerald
  296. Calculus

    1. Find the area of the region between the curves y=sin(x pi/2) and y=x. 2. Find the area of the region between the curves y=sin(x), y=sin(2x), x=0, and x=pi/2.

    asked by Anonymous
  297. Spanish (please help)

    1. Write the verb form for: yo/hacer. 2. Write the verb form for: ellos/hacer. 3. Write the verb form for: nosotros/hacer. Thank You

    asked by Deborah
  298. math

    (4x^3+5x^2-2x-1)-(3x^2+7x-4)

    asked by jaime
  299. Math

    What would be the geometric shape of a mansard roof?

    asked by Mary
  300. Chemistry

    Convert 3.3cm^3 to m^3

    asked by Marlon
  301. organic chemistry

    what is this compound, it has a mf of c6h12o i. imgur. com/gCgw0Hi. png

    asked by k
  302. Math

    A machine does 1000 tasks in 4.3 x 10^-2 seconds. How much task will be done in 2 hours? Leave answer in scientific notation.

    asked by Nina
  303. Math

    Which of the following choices is correct? A. 0.43

    asked by Corey
  304. English

    Question: How can I rewrite this sentence to maintain the 3rd person academic tone? Is my answer correct? 1. You have probably figured out that the boy named Walter was Walter Elias Disney. My answer: One has probably figured out that the boy named Walter

    asked by M
  305. construct truth table

    Construct a truth table for q w/upside down v~p. Using the following below: p: this is an orange q: the monkey is tall

    asked by Althea
  306. maths

    A sum of rs76.50 was pain in 50,25 and 10 paise coins. The number of 10p coin used was four times a number of 25p coin and 10 times of 50p coins how many were there of each ?????

    asked by tuhituhi
  307. Bigfoot Reserch Report

    Help me i am doing a resherch report on bigfoot. I need some websites that are helpful other than wikipedia.

    asked by Jman
  308. math

    a body moving with acceleration of 4 m/sec2 describes 60 m in the 8th second. Find its initial velocity

    asked by narinder
  309. phy

    A string of natural length L extends to a new length L' under tensile force F. If Hooke’S law applies, the work done in stretching the spring is ------------

    asked by christ
  310. NSU

    Evaluate (if possible) the function at the given values of the independent variable. Simplify the results. (If an answer is undefined, enter UNDEFINED.) f(x)=sin x f(pi)= f(5pi/4) f(fpi/30

    asked by Jimmy
  311. Chemistry

    The antifreeze in a car is a 50% by weight solution of ethylene glycol, C2H6O2 in a water solvent. Calculate the boiling point and freezing point of this solution. (For H2O, Kb=0.52 C/m Kf= 1.86 C/m I can't even find the formula for this in my book, please

    asked by Christine
  312. Spanish (Please help)

    1. Write the verb form for: yo/hacer. 2. Write the verb form for: ellos/hacer. 3. Write the verb form for: nosotros/hacer. Thank You.

    asked by Deborah
  313. business law

    At issue in the twenty-first century is the trade-off between the necessity of writers, musicians, artists, and movie studios to profit from their work and the free flow of ideas for the public benefit. Movie (and music) industry participants claim that

    asked by wanda
  314. Education

    Learning may be evidenced I'm not sure what this means.

    asked by Lor