Questions Asked on
October 20, 2012

  1. College Physics

    A uniform horizontal rod of mass M and length l rotates with angular velocity w (omega) about a vertical axis through its center. Attached to each end of the rod is a small mass m. Determine the angular momentum of the system about the axis. Write you're

    asked by Daniel
  2. AP Chemistry

    Consider the following reaction. CaSO4(s) Ca2+(aq) + SO42-(aq) At 25°C the equilibrium constant is Kc = 2.4 10-5 for this reaction. (a) If excess CaSO4(s) is mixed with water at 25°C to produce a saturated solution of CaSO4, what are the equilibrium

    asked by Olivia
  3. Physics

    A 1.00kg ball and a 2.00kg ball are connected by a 4.63m long rigid, massless rod. The rod is rotating clockwise about its center of mass at 33.0rpm. What torque will bring the balls to a halt in 4.07s? My Attempt: Center of Mass = [(1kg)(0m) +

    asked by Syed
  4. geometry

    find the similarity ratio of a cube with volume 729 m^3 to a cube with volume 3,375 m^3?

    asked by Anonymous
  5. Physics

    Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generated by seven-time-winner Lance Armstrong (m = 75.0 kg) is 6.50 W per kilogram of his body mass. (a) How much work does he do

    asked by Elizabeth
  6. science

    A positive charge of 3.50 µC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge. (remember E = Fon q' / q', and 1 µC = 1.00 x 10-6 C) a. 8.6 x 105 toward

    asked by john smith
  7. algebra

    You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the

    asked by LEE
  8. math

    Suppose a computer virus begins by infecting 8 computers in the first hour it is released. Each hour after that, each newly infected computer causes 8 more computers to become infected. The function y = 8 (exponent x) models this situation. make a table

    asked by ProudParent
  9. Chemistry

    A mixture of C3H8 and C2H2 has a mass of 2.0g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.

    asked by Crystal
  10. Chemistry

    If the standard enthalpy of combustion of octane, C8H18(l) is -5471 kJ/mol, calculate the enthalpy change when 1.00 kg of octane are burned. the molar mass of octane is 114 g/mol

    asked by Sam
  11. College Algebra

    An arrow is launched upward with a velocity of 54 feet per second from the top of a 75 foot building. What is the maximum height attained by the arrow in feet?

    asked by Randi
  12. english

    In “First Confession”, the author adds to the interest of the story by using? European Idioms. common phrases. short, highlighted sentences. Irish dialect.

    asked by Deb
  13. Chemistry

    Use principles of atomic structure to Explain why in aqueous solution, (a) potassium forms 1+ but not a 2+ ion (a) Ti3+ is colored but Sc3+ is not. (b) Ti2+ is a reducing agent but Ca2+ is not.

    asked by Lily
  14. Chemistry

    Suppose that a stable element with atomic number 119, symbol Wr, has been discovered. (a) Write the ground-state electron configuration for Wr, showing only the valence-shell electrons. (b) Would Wr be a metal or a nonmetal? Explain in terms of electron

    asked by Lily
  15. math

    a fruit seller buys 100kg apple at the rate of rs 20 per /kg . He sold 40 kg at a loss of 7%.At what price should we sell the remaining apple to make a profit of 15% on the whole transaction ??

    asked by TUHITUHI
  16. Gen Chem

    If the standard enthalpy of combustion of octane, C8H18(l) is -5471 kJ/mol, calculate the enthalpy change when 1.00 kg of octane are burned. the molar mass of octane is 114 g/mol

    asked by Sam
  17. chemistry

    Consider 4.50L of a gas at 365 mmHg and 20 degree C . If the container is compressed to 2.70 L and the temperature is increased to 33 degree C , what is the new pressure, P2, inside the container? Assume no change in the amount of gas inside the cylinder.

    asked by anonymous 78
  18. CALCULUS

    A cone shaped paper drinking cup is to be made from a circular piece of paper of radius 3 inches by cutting out a sector of the circle and gluing the straight edges together. Find the angle of the cut that gives the cup with the largest capacity.

    asked by Sissy
  19. geometry

    The surface areas of two similar solids are 289 ft2 and 900 ft2. The volume of the larger solid is 1,755 ft3. What is the volume of the smaller solid?

    asked by Anonymous
  20. Physics

    The cheetah is one of the fastest-accelerating animals, because it can go from rest to 18.2 m/s (about 41 mi/h) in 2.7 s. If its mass is 114 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your

    asked by Elizabeth
  21. physcis

    a flight attendant pulls her 70 kg flight bag in an airport terminal holding the handle 50 degrees above the horizontal. she pulls the bag a distance of 200 m while exerting a 40 n force acting along the handle with a constant speed how much work does the

    asked by chad
  22. Physics

    The model airplane in figure below is flying at a speed of 21 m/s on a horizontal circle of radius 18 m. The mass of the plane is 0.82 kg. The person holding the guideline pulls it in until the radius becomes 11 m. The plane speeds up, and the tension in

    asked by Elizabeth
  23. economics

    1. Suppose that the market of laptops is given by following supply and demand curves given below: Qd = 5000 − 3p Qs = 1000 + p. Answer the following questions on excel sheet using the above demand and supply equations. i) Take the range of values for the

    asked by Anonymous
  24. Chemistry

    Please show me how to work! Ethane, C2H6(g) can be made by reaction of hydrogen gas with acetylene, C2H2(g). the standard enthalpies of formation of ethane and acetylene are -84.68 and +226.73 kJ mol-1, respectively. what is the reaction enthalpy for the

    asked by Sam
  25. geometry

    The volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the larger figure. V = 5 in3 V = 40 in3 S.A. = 4 in2

    asked by Anonymous
  26. Math

    How much mulch will you need to cover a rectangular garden that is 20 feet by 30 feet with a 3 inch layer of mulch? Explain.

    asked by Chelsea
  27. chemistry

    At 1 atm, how much energy is required to heat 49.0 g of H2O(s) at –12.0 °C to H2O(g) at 169.0 °C?

    asked by yas
  28. Chemistry

    For 2 SO2(g) + O2(g) 2 SO3(g), Kp = 3.0 104 at 700 K. In a 2.00-L vessel the equilibrium mixture contains 1.58 g of SO3 and 0.136 g of O2. How many grams of SO2 are in the vessel?

    asked by Claire
  29. Calculus -- HELP!

    If 1200 square centimeters of material is available to make a box with a square base and open top, find the largest possible volume of the box.

    asked by Suzy
  30. English

    The speaker in the poem from Auden’s “The Ten Songs” is trying to flee from? police. Hitler. memories. floods.

    asked by Deb
  31. Social studies

    how does geography affect the development of a civilization?

    asked by Matt
  32. French

    Je m'appelle Claire LeFèvre et j'habite en Californie. Mes parents travaillent dans une industrie privée à San Diego et j'aime habiter ici. Le temps est parfait. Il fait toujours beau temps! Ici, à San Diego, je peux parler français et espagnol parce

    asked by Lilly
  33. Chemistry

    If the standard enthalpy of formation of PH3(g) is +5.4 kJ mol-1, calculate the reaction enthalpy for 2PH3(g)--->2P(s)+3H2(g)

    asked by Sam
  34. Chemistry

    the following acid—base neutralization reaction HNO3 (aq)+ KOH (aq) --KNO3(aq) + H2O (I) What is the molarity (M) of an HNO3 solution if 50.0ml is needed to react with 25.0ml of 0.150M KOH solution?

    asked by Tasha
  35. Trigonometry

    The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal function y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t=1. What is the average Temperature for the month of February? Using the same

    asked by Hannah
  36. Science (Human Anatomy)

    THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Give 2 different reasons why two muscles that act across the same side of the same joint are not necessarily redundant? Explain your reasons in detail and give at one real example that illustrates each

    asked by jawed hakimi
  37. Chemistry

    The standard enthalphies of formation of ozone, O3(g), and oxygen atoms are +142.70 and +249.17 kJ/mol. Calculate the reaction enthalpy for 2O2(g)-->O3(g)+O(g)

    asked by Sam
  38. calculus!

    Use differentials to approximate the maximum error propagated when calculating the volume of a sphere, if the radius is 5 + or - .01 meters

    asked by Cassie
  39. social studys

    1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages,

    asked by all about me
  40. chemistry

    A very flexible helium-filled balloon is released from the ground into the air at 20 degree C. The initial volume of the balloon is 5.00 L, and the pressure is 760 mmHg. The balloon ascends to an altitude of 20km, where the pressure is 76.0 mmHg and the

    asked by Liang
  41. Chemistry

    Based on the following chemical equation answer the question below show all your calculation The balanced chemical reaction of iodine with hydrogen sulfide h2s(g)+i2(s)-----2HI(g) + S(s) (a) Based on the above chemically balanced equation, how many grams

    asked by Tasha
  42. I need help answering this Accounting question!?

    While preparing the April 30th bank reconciliation for the checking account for Calvin Corporation, the accountant identified the following items: Calvin's balance according to the general ledger: $15,000 Outstanding checks: 2,500 Bank service charge: 15 A

    asked by Anton
  43. govt

    what do they mean by highly specialized committee structure

    asked by dora
  44. Chemistry

    When 10.0 g of ammonium nitrate (molar mass= 80 g/mol) are dissolved in 1.00 L of water in a bomb calorimeter with a heat capacity of 2.30 kJ/ K, the temp drops 1.52 K. What is the molar enthalpy of solution of ammonium nitrate?

    asked by Sam
  45. Stats

    Cans of regular Coke are labeled as containing 12. Statistics students weighted the content of 10 randomly chosen cans, and found the mean weight to be 12.1. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a

    asked by S
  46. Physics

    A semitrailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway-truck ramp that is inclined at an angle of 10.0° above the horizontal. The semitrailer coasts to a stop after traveling 137 m along the ramp.

    asked by Elizabeth
  47. English

    How does Dante feel about the journey he’s about to take with Virgil? worse than before he talked with Virgil better now that he’s talked with Virgil unsure excited

    asked by Deb
  48. chemistry

    When 1662 J of heat energy is added to 45.9 g of hexane, C6H14, the temperature increases by 16.0 °C. Calculate the molar heat capacity of C6H14.

    asked by ashley
  49. statistics

    Suppose you wanted to test your ESP using an ordinary deck of 52 cards, which has 26 black and 26 red cards. You have a friend shuffle the deck and draw cards at random, replacing the card and reshuffling after each guess. You attempt to guess the color of

    asked by Sydney
  50. i need help ss

    1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages,

    asked by all about me
  51. Precalc/Trig

    Find the smallest positive number t such that e^sin(t)=1/2

    asked by Liz
  52. Chemistry

    Please show me how to work! thanks When Snno2(s) is formed form the comustion of gray tin, the reaction enthalpy is -578.6 kJ, and when white tin is burned to form SnO2(s), the reaction enthalpy is -580.7 kJ. Calculate the reaction enthalpu for

    asked by Sam
  53. Chemistry

    Calculate the number fo moles of NaOH(aq) needed to react completely with 125 mL fo 6.00 M H2SO4(aq)

    asked by Sam
  54. math

    by selling 90 computer a shopkeeper gains the amount which is equal to the selling price of 10 computer find the profit percent ? had he purchased them for rupees 30000 each what would have been the selling price of a computer ??

    asked by TUHITUHI
  55. Math-Algebraic Expressions and identities

    Use suitable identity to get product: 1) (x3 - 3/8) (x3 + 1/4) 2) (p2 + 16) (p2 - 1/4) 3) (y - 7) (y + 12) Thanks in anticipation.

    asked by Shaija
  56. statistics

    Suppose a shipment of 500 machine parts contains 62 defective and 438 non-defective machine parts. From the shipment you take a random sample of 25. You are interested in the number of defective machine parts out of 25 trials and corresponding

    asked by Brenda
  57. Physics

    A soccer ball is kicked with an initial speed of 23 m/s at an angle of 20° with respect to the horizontal.(a) Find the maximum height reached by the ball. (b) Find the speed of the ball when it is at the highest point on its trajectory. (c) Where does the

    asked by Anne
  58. chem Help please!

    A water heater is fueled by the combustion of propane as described by the following reaction: C3H8(g) + 5 O2(g) --> 3 CO2(g) + 4 H2O(l) a) Determine how much heat is released if 11.2 moles of propane are burned at 298 K and at a constant pressure of 1.00

    asked by Kjd
  59. Calculus

    Graph the following function. Find and state the domain, intercepts, asymptotes, intervals of increase and decrease, local extrema, concavity, and inflections points. F(x)=(x+1)/(square root(x^2+1)) I got so far... Domain: (-infinity, infinity) Intercepts:

    asked by Devin
  60. math

    the product of a 1 digit number and a 2-digit number number is 284 what is the answer

    asked by brittany
  61. chemistry

    How would you prepare 1000.0ml of 0.600M NaOH solution starting from concentration of 1.000M.

    asked by Tasha
  62. Calculus

    I am maybe overthinking this, but what is the lim as n-> infinity of |(n+1)/(n+2)| ? I am trying to use the ratio test to find interval of convergence for the infiinite series (n/n+1)((-2x)^(n-1)) so i did the limit of |(n+1)/(n+2)| but i am wondering if

    asked by Luma
  63. physics

    Bonnie and Clyde are sliding 500 bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 385 of force while Bonnie pulls forward on a rope with 300 of force.What is the safe's coefficient of

    asked by Kris
  64. algebra

    what is the vertex form of the equation y=x^2+4x-3 Could someone please explain.

    asked by LEE
  65. Math (Trig)

    In 1893, the city of Chicago put on a World's Fair to celebrate the 400th anniversary of Columbus' trip to the Americas. The most spectacular at this fair was a huge Ferris Week built by an engineer named George Ferris. This remarkable structure had a

    asked by Ashley
  66. MANAGERIAL ECONOMICS

    In attempt to increase revenue and profits, a firm is considering a 4 percent increase in price and an 11 percent increase in advertising. If the price elasticity of demand is -1.5 and the advertising elasticity of demand is +0.6 would you expect an

    asked by delaina
  67. Mathematics

    a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Thanks

    asked by Candice
  68. physics

    to prevent dust and soot particles from polluting the atmosphere, industry often employs static electric charge in their smokestacks. explain the physics principle involved in this application

    asked by sal
  69. Calculus

    Sketch the graph of f(x)=x^2/x-2. Identify the domain, x-intercepts, y intercepts, symmetry, periodicity, asymptotes, increasing and decreasing intervals, local max/min, concavity, inflexion points.

    asked by Anonymous
  70. physics

    A 33.6-kg crate rests on a horizontal floor, and a 64.7-kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts on the person.

    asked by Anonymous
  71. College Algebra

    The half-life of a radioactive material is about 34.6 years. How much of a 1-gram sample of the material is left after 30 years?

    asked by Anonymous
  72. Chemistry

    Given 1.01 g of H2 in the reaction H2 + 1/2 O2 = H2O. The Delta H for solution is 143 kJ. What is the delta H for the reaction?

    asked by Roger
  73. Math

    The following chart shows the fraction of students who enjoy baseball, basketball, football, soccer, and swimming in the 7th grade. Baseball - 2/3 Basketball- 4/5 Football- 3/10 Soccer-5/6 Swimming-1/8 What fraction of students enjoys basketball and

    asked by Bethany
  74. Physics

    Hello. I'm having difficulty with this question In the diagram, the coefficient of kinetic friction between the 2.00 kg and the 3.00 kg blocks is 0.300. The horizontal surface and the pulleys are frictionless, and the masses are released from rest. (a)

    asked by Priya
  75. maths

    the 1st term of an ap is twice the common difference find in terms of the 5th term of the ap

    asked by d 1st term of an ap is twice the common difference find in terms of the 5th term of the a
  76. Physics

    A block slides down an inclined plane that makes an angle of 23° with the horizontal. There is friction between the block and the plane. If the acceleration of the block is 2.1 m/s2, find the coefficient of kinetic friction between the block and the

    asked by Anne
  77. math

    christi rides her bicycle 7 blocks south. 3 blocks east, 5 blocks north, and 8 blocks west. how many blocks has she ridden when she crosses her own path

    asked by john
  78. math

    minimize p= 15x +18y subject to x+2y= 36 x>=0 y>=0

    asked by garnel
  79. calculus

    For the function y = 9x2 + 6x + 2, at the point x = 7, find the following. (a) the slope of the tangent to the curve (b) the instantaneous rate of change of the function

    asked by Anonymous
  80. Chemistry

    How many mL of 0.200 M H3PO4(aq) must be added to 25.0 mL of 0.0888 M BaCl2(aq) to precipitate all the barium as barium phosphate?

    asked by Sam
  81. literacy

    It's important to include references in your research paper because references A. reduce the risk of false conclusions. B. prove that you didn't conduct your research on the Internet. C. give credit to authors. D. are required on most writing assignments.

    asked by Anonymous
  82. geometry

    The volumes of two spheres are 729 in3 and 27 in3

    asked by Anonymous
  83. geometry

    01:34:47 The volumes of two spheres are 729 in3 and 27 in3. What is the ratio of their radii, rounded to the nearest whole number?

    asked by Anonymous
  84. Physics

    A baseball is hit with an initial speed of 42 m/s at an angle of 30° relative to the x (horizontal) axis.(a) Find the speed of the ball at t = 3.4 s. (b) What angle does make with the x axis at this moment? (c) While the ball is in the air, at what value

    asked by Anne
  85. Physics

    Consider a swimmer who wants to swim directly across a river. If the speed of the current is 0.31 m/s and the swimmer's speed relative to the water is 0.57 m/s, how long will it take her to cross a river that is 13 m wide?

    asked by Anne
  86. Physics

    A car of mass 1396 kg is parked on a very slippery hillside.To keep it from sliding down the hill (è = 15°), the owner attaches a cable. What is the tension in the cable?Determine the components of all the forces on the car along the coordinate axes.

    asked by Anne
  87. government

    In gov't what does ommittee reforms that have taken power away from chairs represent?

    asked by dora
  88. physics

    You and a friend each drive 63 km to the same destination. You travel at 88.7 km/h and your friend at 96 km/h. How long will your friend wait for you at the end of the trip? Answer in units of min

    asked by Anonymous
  89. math

    machines A &B. Model A machines each cost $200 to make at a profit of $25 each. Model B cost $3oo to make at a $40 profit. Total number of machines do not exceed 2500 a month. Company has no more $600,000 per month for manufacturing cost. Whats the number

    asked by garnel
  90. Abnormal Psychology

    The most common underlying feature associated with reading disorders is A. associating new words with those in memory. B. visually processing the shapes of letters. C. interpreting the meaning of words. D. distinguishing or separating sounds in spoken

    asked by Felicia
  91. Algebra

    The length of a rectangular banner is 3 feet longer than its width. If the area is 70 square feet, find the dimensions.

    asked by ....
  92. English

    Does defining human worth based on shallow measurements, such as wealth and possessions, make true love and humanity impossible? Who/what is to blame for this definition? Is it possible to transcend shallow measurements? Explain.

    asked by Anonymous
  93. Math

    solve log(7x-3)+2log(5)=2+log(x+3) I've attempted to do this question and I ended up with log(7-3)+log(5^2)-log(x+3)=2 but I don't what to do next or whether I did something wrong.

    asked by Kevin
  94. Abnormal Psychology

    Joint social attention refers to the ability to A. communicate with two people at the same time. B. coordinate one’s focus of attention on another person and an object of mutual interest. C. hold a conversation on two different topics. D. pay attention

    asked by Felicia
  95. math

    how many axes of symmetry has a square?

    asked by wan
  96. Algebra Grade 7

    when hugo was 9 years old he was 56 inches tall. hugo is now 12 years old and he is 62 inches tall. fins the percent of increase in hugos height to the nearest tenth a customer earned 3262.50 interest on a 9-month cd. how much was the opening deposit total

    asked by rawr... im a dinosaur.... rawr
  97. Math

    A sample of n _ 11 scores has a mean of M _ 4. One person with a score of X _ 16 is added to the sample. What is the value for the new sample mean?

    asked by Sharon
  98. calculus

    suppose that f(x) = x^3 x1 is differentiable at x=1 then a=?, b=?

    asked by jul
  99. Math

    By using the expansion (1 + x)^2. Prove 8[sigma notation]k=0 2^(3K)(N K) = 3^(2n). Thanks

    asked by Candice
  100. Geography

    5 countries in Africa with coastlines on the Atlantic Ocean and lie between 20 degrees n and 10 degrees n? I think they are guinea,guinea-Bissau,Gambia,Senegal and Mauritania. Is this right?

    asked by Alex
  101. HEALTH

    I have to do a project on the bacteria/micro called streptococcus and s the any website that would answer these following questions about it or aleast some? What Microbe? Where Can we See This Microbe? Good or Bad Microbe? Why? How Can We Prevent Disease

    asked by HEALTH
  102. Ethics and Cultural

    What are some of the ways people identify groups?

    asked by Karen
  103. maths

    binary operation m.n=m2+n is associative or commutative?

    asked by JENNY
  104. Physics

    A bullet is fired from a rifle with a speed v0 at an angle è with respect to the horizontal axis from a cliff that is a height h above the ground below. Calculate the speed of the bullet when it strikes the ground.

    asked by Anne
  105. Calculus

    Use Newton's Method to approximate the positive root of the function f(x) = (x^5) - 20 Show each iteration until successive iterations agree to six decimal places.

    asked by Suzy
  106. math

    Cassandra has a square photo that has lengths of 4 inches. She cuts 5/8 inch off the top and 1/2 inch off the bottom. What is the new height of the photo?

    asked by Ana
  107. Algebra

    3/4 ÷ x = 1/3 solve for x

    asked by Kara
  108. physics

    all the following are true about water except that it: a has a very high specific heat capacity compared to ther substances. b. takes a long time to heat up. c. takes a short time to cool off. d. makes the earths climates milder.

    asked by ray
  109. math

    distance from A-B is 40 km.Mandy starts from A at 11 am and Jason starts from B at 1 pm.He walks at 5 km/h and gets to A at the same time as Mandy gets to B.How fast did Mandy walk?

    asked by wan
  110. Calc

    It is noon. A secret agent is driving a jeep through the desert in the tiny principality of Alta Loma. He is 32km from the nearest point on a straight, paved road. Down the road 16km is a power plant in which a band of international terrorists has placed a

    asked by Alison
  111. History

    Hi for my school work I have to say out of which three colonies experienced more freedom in the seventeenth century which is hard for me to explain. The three colonies being New England,Dutch and Virginia/maryland If anyone can help thank you

    asked by Jasmine
  112. Discreet Mathematics

    Part I: Suppose you are developing a statistical database in which information about professional football teams and records are stored. Consider the following 2 sets of data that list football teams and quarterbacks: D = {Jets, Giants, Cowboys, 49’ers,

    asked by Chuck
  113. statistics

    I need help with p for a hypothesis test for normal distribution.

    asked by carolyn
  114. Discrete Mathematics

    Find x in the following expressions: 1. (111)10 = (x)3; 2. (111)3 = (x)10; 3. (2012)10 = (x)7; 4. (2012)7 = (x)10;

    asked by Nisha
  115. Discrete Mathematics

    Find g := gcd(389,222) and a,b belongs to Z such that g = a.389 + b.222.

    asked by Nisha
  116. Discrete Mathematics

    Let m,n,z belong to N such that m and n divide z and gcd(m,n) = 1. Prove that m.n divides z.

    asked by Nisha
  117. medical terminology

    how to type a creative paragragh using medical abbreviations

    asked by Zabrina
  118. math

    prove the inequality sin x + tan x > 2x for x ¸ (0, pi/2) i don't know what i must do with this equation, can someone explain this to me step by step? >.

    asked by jul
  119. Math

    A particle is projected horizontally with velocity V m/s, from a point h meters above ground. Taking g ms^-2 as the acceleration due to gravity, 1. Show the equation of the path is given by y = (2hV^2 - gx^2)/ 2V^2 2. Find the range of the particle. Thanks

    asked by Candice
  120. Precalc/Trig

    what angle does the line y=6/7x make on the xy plane with a positive x axis?

    asked by Liz
  121. college alegebra

    √3x-2+√2x+5+1=0 Could this square root problem be solved by using a graphing TI-84 Plus calculator? If so, will you please tell me how to do it. Thanks

    asked by sandy
  122. Precalc/Trig

    what angle does the line y=6/7x make on the xy plane with a positive x axis?

    asked by Liz
  123. maths urgent please

    the chord PQ joining the points P(2p, p^2) and Q(2q, q^2) on x^2 = 4ay always passes through the point A(2,0) when produced. show that (P+q) = pq thanks!

    asked by Candice
  124. PHI 103 Informal Logic

    4. After being told that she is being punished for lying, a child responds by telling her mother that she also lied. This response may involve which fallacy? (Points : 1) Ad homimen (tu quoque) Ad verecundiam (ex libris) Ad misericordiam (ex ante) Ad

    asked by Sam
  125. Math

    What magnitude of earthquake would release energy equivalent to 35 trillion jules? I know the formula is: E= (2.5 X 10^4) X 10^1.5 X M

    asked by Sam
  126. calculus

    Write h(x) = 6x^4 - 2x^2 + 1 as a composition of two functions f and g

    asked by Jake
  127. math

    3x squared x=4

    asked by jr
  128. Calculus

    does infinite power series -1/n diverge? (i think so, because it is just the negative of the harmonic series)...? thank you!

    asked by Nikky
  129. Social

    Can anyone tell me What are some ways to support diversity during middle adulthood.

    asked by R.T.
  130. MATH

    WHAT IS THE MEAN 210153420312

    asked by NOAH
  131. calculus (vectors)

    Determine a vector that is orthogonal to the vector e = [3, -1, 4]

    asked by KnowsNothing
  132. MATH

    HOW TO FACTOR 20X^2+23X-21 STEP BY STEP

    asked by Anonymous
  133. Maths-algebraic expression

    Using suitable identities evaluate (z-14)(z-1) Please help. thanks

    asked by Ben
  134. I need help answering this Accounting question!?

    Bluejay Corp. prepared a bank reconciliation as of July 31, 2009. The following items were identified: Bluejay's bank statement balance: $14,300 Deposit in transit: 1,000 Outstanding checks: 1,300 Bank service charges: 50 Customer's NSF check returned by

    asked by Anton
  135. Physics

    Block 1 is up an incline and is attacthed to block 2 by a rope, with m2 = 5.0 kg and è = 33°.If the coefficient of static friction between block #1 and the inclined plane is ìS = 0.24, what is the largest mass m1 for which the blocks will remain at

    asked by Anne
  136. math

    2a + 7b + 17c = 31 How do you work out what a,b and c are?? any help would be appriciated

    asked by Kara
  137. Physics

    Block 1 sits on a table with rope that is attached to block 2 hanging over the edge where m1 = 43 kg and m2 = 11 kg. Assume that there is no friction between m1 and the table. Find the acceleration of the crates and the tension in the string

    asked by Anne
  138. physics

    two objects repel each other. can we be sure they are both electrically charged? how can we know which sign of charge? two objects attract each other. can we be sure both are electrically charged?

    asked by aa
  139. physics

    On a drive from your home to town, you wish to average 39.6 mph. The distance from your home to town is 108 miles. However, at 54 miles (half way), you find you have averaged only 29.7 mph. What average speed must you maintain in the remaining distance in

    asked by Anonymous
  140. Calculus

    Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = -x^4 + 2x^3 - x + 2

    asked by Sissy
  141. math

    what is 67 in m overn form were m and n are integers

    asked by destiny
  142. Calculus.......plz help! =)

    Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes, and points of inflection for y = -x(x+1)^3

    asked by Amy
  143. math

    4,195.43 1,408 625.00 + 239.00 i got 6,466.43 am i right

    asked by sharon
  144. chem need help

    The most prominent line in the atomic spectrum of mercury occurs at a wavelength of 253.652 nm. What is the energy of 0.625 moles of photons associated with the most prominent line? Express answer in kJ. ANS: 295 kJ Please explain.. Thank you so much!

    asked by Kjd
  145. Calculus

    Suppose f and g are inverses, and (1,5) is a point on the graph of f. If f'(1) = -3, what, if anything, does that tell us about g'(1).

    asked by Jan
  146. Abnormal Psychology

    In comparison to children with autism, children with schizophrenia A. tend to be younger at diagnosis. B. show a more chronic and declining course. C. show similar social and language deficits. D. show less intellectual impairment.

    asked by Anonymous
  147. Science (Human Anatomy)

    THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area.

    asked by jawed hakimi
  148. Algebra

    2x/3 + 1/4= x/6 - 1/2 solve for x

    asked by Kara
  149. Chemistry

    What effect would a sweaty person have on the pool chemistry? Would the reaction tend to be forced to the right or to the left? Any help is greatly appreciated!

    asked by Corneil
  150. Algebra

    2-(3x-4)=2x-9 X=? help would be lovely 😊

    asked by Sarah
  151. Pre-Calculus

    Applications of Logarithms I really need help with this log stuff please. If the PH of acetic acid is 5, what is the PH of hydrochloric acid if it is 200 times more acidic? the formula is right here: P=P0*10^PH2-PH1 200=10^5-PH1 log200=(5-PH1)log10 And I

    asked by Shreya
  152. math

    distance of 12 km was walked at a speed of 4 km/h on the way, and 6 km/h on the way back.What was the average speed?

    asked by wan
  153. math

    how many perfect squares between 1 and 100 end in 2 ?

    asked by wan
  154. Abnormal Psychology

    Which of the following interventions would be least likely to be used with a child with a learning disorder? A. Implementation of behavioral reinforcement B. Prescribing of medications that help learning C. Teaching the child to monitor his or her own

    asked by Felicia
  155. math

    in a division sum dividing by 8 ,any remainder must be(a) more than 8,(b) half of 8,(c)less than 8,(d)equal to 8

    asked by wan
  156. math

    new south wales has 1900 km of coastline.this is 10600 km less than western australia,but 100 km greater than victoria.south australia has about twice as much coastline as new south wales,but less than western australia.the northern territory has 6200 km

    asked by wan
  157. Reading

    what does it mean when they ask you "what parts of the book stood out"?

    asked by Liliana
  158. algebra

    Solve the equation for y. 8y + 7X = -21

    asked by Linda
  159. Math

    Solve the equation. x^2-5x+5=0.

    asked by Linda
  160. chemistry

    What can cause high pressure inside a reactor?

    asked by Namie
  161. Successive approximations

    Find all root of ln(4-x^2)=x correct to 8 decimal places. List all successive approximations.

    asked by Devin