1. math

    you want to paint the walls of your bedroom. Two walls measure 19 ft by 9 ft, and the other two walls measure 14 ft by 9 ft. The paint you wish to purchase costs $17 per gallon, and each gallon will cover 400 ft2 of wall. Find the total amount you will

    asked by 111 on October 11, 2016
  2. Science

    1. Find the lattice parameter of pure iron at room temperature. 2. What is the ratio of the lattice parameter of the iron to the wavelength of the radiation used. 3. What is the value of two theta for the second peak? 4. By what factor is the lattice

    asked by Justin on August 15, 2012
  3. chemistry

    A mixture of 0.2mole of alcohol A and 0.5mole of alcohol has a total vapour pressure of 40mmHg at 298k,if the mixture obey's Raoult's law,find the pure pressure of B at 298k given that the pressure of A is 20mmHg at 298k

    asked by Smile on March 20, 2019
  4. math

    150 children have to go on a school tour. They can use minibuses, which carry x pupils each, or cars which carry y pupils each. The mathematics teacher works out that they could just manage with 10 minibuses and 6 cars, or with 5 minibuses and 18 cars.

    asked by Banko on November 29, 2016
  5. Chemistry

    A mixture of 0.2mole of alcohol A and 0.5mole of alcohol has a total vapour pressure of 40mmHg at 298k,if the mixture obey's Raoult's law,find the pure pressure of B at 298k given that the pressure of A is 20mmHg at 298k

    asked by Barbie cue on March 4, 2018
  6. Math

    A tree broke due to storm at a point but did not get separate . its tops touched the ground at a distance of 10 m from its base if the height of the point from the ground at which the tree was broken is 12\25 of the total height of the tree find its height

    asked by Vaivhav on November 21, 2016
  7. Math

    The drama club is planning a field trip. Two-thirds of the drama club will attend, in addition to 8 teachers. There are 48 people going on the field trip. Write an equation you can use to find the number of students in the drama club.

    asked by Jainam Gandhi on November 29, 2016
  8. calculus

    A person 150cm tall is walking away from a lamp post at the rate of 15 meter per minute. when the man is 2.5m from the lamp post, his shadow is 3m long. Find the rate at which the length of the shadow is increasing when he is 7m from the lamp post.

    asked by nurul on April 18, 2014
  9. Statistics

    Given that x is a normally distributed random variable with a mean of 28 and a standard deviation of 7, find the following probability: P(x

    asked by Anonymous on October 9, 2012
  10. geometry

    I have a circle with a radius of 20in. Arc mEGF = 235(not shaded part of circle) find the area of arc EF (shaded sector of circle). My answer was 82.3 in^2 correct answer is 436.3 in^2 I need disrection on this one- I was really off on my answer.

    asked by mary on April 18, 2011
  11. algebra

    An airplane takes off from an airport and takes 6.5 hours to fly west (against the wind current) 2600 miles. The return trip (with the wind current) takes 5.2 hours. Find the airspeed and the wind speed.

    asked by McKenzie on February 27, 2014
  12. probability

    Chris has a chance of making par on each hole that he plays. Today he plans on playing only four holes. Find probability of each event. A) he makes par on at least one hole. B) he makes par on the first two holes and the fourth hole.

    asked by Katarzyna on November 26, 2012
  13. algebra

    I need the algebra sentence for the following problem..Adam is 3 times as old as Cynthia and Fred is 16 years younger than Adam. One year ago, Adam's age was twice the sum of Cynthia's and Fred's age.Find their present age.

    asked by Sue on November 26, 2012
  14. Math

    At a local baseball game, the concession stand has two different meal choices. You can get 3 hotdogs and 1 drinks for $18.00 or you can get 2 hotdogs and 4 drinks for $22.00. If the price of hotdogs and drinks is the same for each meal, find how much it

    asked by Help on November 17, 2017
  15. calculus help

    Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x)= ln(x) , [1,6] If it satisfies the hypotheses, find all numbers c that satisfy the conclusion of the Mean Value Theorem. (Enter your answers as a comma-separated

    asked by Tom on April 16, 2014
  16. science(chem) Please check by today

    I REALLY REALLY NEED this to be checked by the END OF THE Day since my finals are tomorrow and I need to know if this is the correct way to do this type of question PLEASE TELL ME IF IT IS CORRECT. I AM posting this again since nobody replied to the other

    asked by christina on July 23, 2007
  17. Zoology

    Im on the last 5 quiestions and I really just cant find them. 1. What makes and builds cells, if an animal does not get enough it cannot make skin cells, build muscle, or grow? 2. What helps with metabolism, determines how effectively the body uses food?

    asked by Sam on November 18, 2008
  18. physics

    A steel ball has a mass of 4.0kg and rolls along a smooth, level surface at 62m/s. A) Find its kinetic energy(i got this and its 7688 joules) B)?????-At first, the ball was at rest on the surface. A constant force acted on it through a distance of 22

    asked by Paul on November 22, 2008
  19. Math (calculus) (mean values)

    A company introduces a new product for which the number of units sold Ss given by the equation below, where t is the time in months. s(t) = 155(7-(9/(2+t))) a) Find he average rate of change of s(t) during the first year. I got the answer to be 1395/28 b)

    asked by Ray on December 10, 2016
  20. physics

    The two small spheres each with mass m= 25g are hung by silk threads length L=.65m from a common point. When the spheres are given positive charge such that q1=2q2, each thread hangs stationary at theta=15 degrees from the vertical. Using Newton's first

    asked by someone on June 9, 2016
  21. Physics

    Can someone post numerical answers!! Under less than ideal conditions, a student pushes a 6 kg cart holding 2 boxes of books up a ramp to a platform that is 1.8 m high in 42 sec. Each box contains 12 kg of books. The ramp is inclined at an angle of 15

    asked by Ron on April 8, 2010
  22. Physcis

    Consider the figure below where a cylinder of an ideal gas is closed by an 16 kg movable piston of area = 60 cm2. When the gas is heated from 30 0C to 100 0C the piston rises by 20 cm. The piston is then fastened in place and the gas is cooled back to its

    asked by Anonymous on June 14, 2016
  23. MATH

    I have a test in about an hour and a half and am having some difficulty on the review the teacher gave us to help us prepare. Any help would be great! *Convert the polar equation to a rectangular equation. rsin(theta - Pi/4) =5 -The answer is given as y=

    asked by Daisy on April 4, 2013
  24. Physics

    A. A 45kg gymnast launched herself from a vault with a speed of 1.8m/s.she lands upright on the ground 125 cm below at what speed will she hit the ground? B. On landing she bends her knees through a height of 0.15m. Detained the average force exerted by

    asked by tristan on March 30, 2017
  25. Math

    Solve the following problem taken from Treviso Arithmetic, a math textbook published in 1478 by an unknown Italian author: A man finds a purse with an unknown number of ducats in it. After he spends 1/4, 1/5 and 1/6 of the amount, 9 ducats remain. It is

    asked by Josh on November 16, 2007
  26. World History

    How was the founder and prophet of Islam, Muhammad, able to unify the peoples of Arabia, and set out on what would become a massive and rapid campaign of conquest in the 7th century? I don't have a textbook for this course and I have researched this

    asked by Bethanie on March 26, 2018
  27. English

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

    asked by Henry2 on February 13, 2012
  28. english ( The Odyssey)By:Homer

    1. Describe odysseus' stage of innocence and initiation. 2. Describe Odysseus of Chaos and Resolution..Find 2 quotes from The Odyssey for each of these two stages. explain how the quote prove Odysseus in that stage. 3 .Two thoughts-provoking questions with

    asked by mirra on October 10, 2017
  29. college stats

    I am having a lot of trouble with these questions can anyone help me please. 2. On September 2, 2004, a Dan Jones poll based on a random sample of 408 Salt Lake County residents reported that 26% of the respondents thought that Mayor Nancy Workman should

    asked by penelope on July 12, 2013
  30. math help please

    two cards are dealt in succession from a standard deck of cards. find the probability that the first card is a diamond or a king. probability that the second card is red given that the first card was a heart. if two dice are rolled, what is the probability

    asked by Kennedy on January 19, 2009
  31. Math

    Find the accumulated amount A if the principal, P = $3700 is invested at the interest rate r = 7%/year for t = 12.5 years compounded semiannually. Round your answers to two decimal places. ​ a. The accumulated amount is $8544.01. b. The accumulated

    asked by Jass on October 22, 2016
  32. Repost-Physics 1

    A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

    asked by John on October 9, 2012
  33. Physics

    A stainless-steel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.42 cm and a radius of 0.14 mm. If the wire is stretched 0.13 mm, find the magnitude and direction of the force on the tooth. Disregard

    asked by Sam on March 26, 2013
  34. Math

    Forensic scientists use the lengths of certain bones to calculate the height of person. A bone often used is the tibia (t), the bone from the ankle to the knee. A man’s height (h) is determined from the length of this bone using a function defined by the

    asked by Silvio on February 28, 2014
  35. Physics 1

    A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

    asked by John on October 8, 2012
  36. physics

    9-Volt battery is used to charge a 375 mF capacitor over a 147 Ù resistance. How many seconds will it take for the capacitor to reach 75% of its maximum charge? Hint: The equation below represents the charge of a charging capacitor as a function of time Q

    asked by crystal on March 10, 2011
  37. Calculus 1

    A 10m ladder leans against a wall at an angle theta with the horizontal. The top of the ladder is x metres above the ground. If the bottom of the ladder is pushed towards the wall, find the rate at which x changes with respect to theta when theta equals 60

    asked by Yain on April 22, 2012
  38. social studies

    Countries in the world have to work together to find solutions to sharing resources. How can countries of the South contribute? How can countries of the North contribute? How can you contribute? This is a question from my social's text book. I can't seem

    asked by rakhi on May 18, 2010
  39. Physics!!

    A car moving at 16.0 m/s, passes an observer while its horn is pressed. Find the difference between the frequencies of sound heard when the car approaches and when it recedes from the stationary observer. The velocity of sound is 343 m/s and the frequency

    asked by sophie on April 4, 2009
  40. physics

    1.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the beginning is v. What maximal height h will the cylinder reach? 2.Helicopter of mass M holds stationary in the air fires a missile of

    asked by Sandhya on May 3, 2011
  41. Physics

    a 4.50 kg mass traveling east at 5.0 m/s has a head-on elastic collision with a 1.5 kg mass traveling west at 3.0 m/s. find the velocity of each mass after the collision. my work so far: vif= (4.50-1.5/4.50 + 1.5) x2 v2f= (2m1/4.50+1.5) x 2 I don't get the

    asked by Kasey on January 11, 2016
  42. Physics

    A particle is at rest at the apex A of a smooth fixed hemisphere whose base is horizontal. The hemisphere has centre O and radius a. The particle is then displaced very slightly from rest and moves on the surface of the hemisphere. At the point P on the

    asked by Chris on February 4, 2012
  43. Math 1 question

    There are 35 marbles in a bag: 9 blue marbles, 8 green marbles, 4 red marbles, 8 white marbles, and 6 yellow marbles. Find P(red). Write the probability as a fraction in simplest form, a decimal, and a percent. four over thirty-one, 0.129, 12.9% four over

    asked by HeELP ME FAST!!! on May 24, 2014
  44. Math URGENT!!

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  45. psychology

    My question is about connectionism.I have a program that conctruct connectionist models.Presumably I have number of unit for example one of them is unit1 that represent room: for example office how do I find out data input for that unit I saw somewhere

    asked by katarzyna rochowicz on June 3, 2010
  46. Chemistry

    CaO +H2O= Ca(OH)2 The initial mass plus the test tube is 10.860g after picking up water to give calcium hydroxide the total mass of the tube and ca(oh)2 is 11.149g What is the mass of the test tube? ..I did 11.149-10.86=.289 h2o , 40.08/56.08=ca %

    asked by Alexis on September 15, 2015
  47. PHYSICS

    A PERSON LOWERS A BUCKET INTO A WELL BY TURNING THE HAND CRANK. THE CRANK HANDLE MOVES WITH A CONSTANT TANGENTIAL SPEED OF 120M/S ON ITS CIRCULAR PATH. THE ROPE HOLDING THE BUCKET UNWINDS WITH OUT SLIPPING ON THE BARREL OF THE CRANK. FIND THE LINEAR SPEED

    asked by kassy on November 8, 2016
  48. Math

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  49. Math quick question!

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  50. Physics

    A 50 kg box rests on a smooth frictionless table. Connected to the box is a light string passing through a pulley at the end of the table. Suspended on rhe other end of the string is a 20 kg box. Find a) acceleration of the system, b) the tension in the

    asked by JOSH on August 19, 2014
  51. physics

    A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane (see the figure below). Find the coin's

    asked by Anonymous on July 28, 2013
  52. would someone please check this math

    1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple

    asked by larry on February 8, 2007
  53. math

    Factor: x^3 - 3/4x - 1/4 The answer is: (x - 1)(x + 1/2)^2 How do I learn to do that? I'd like to reread an appropriate chapter from an appropriate textbook and do practice problems. It takes experience and practiced eye. Algebra books have chapters on

    asked by mathstudent on January 2, 2007
  54. math

    graph the line with slope 1/2 passing through the point(-5,-2) find the slope of the line 5x+5y=3 write answer in simplest from consider the line 2x-4y=4 what is the slope of a line perpendicular to this line. what jis the slope of a line parallel to this

    asked by Anonymous on February 10, 2013
  55. math help me out

    p and q started a business. they made an annual profit of rs 50000. q being a working partner received 20 % of the annual profit as his salary. if the entire profit were divided in the ratio of their investment, p would received rs 8000 more as his profit

    asked by dharmesh on August 23, 2016
  56. Algebra

    an investment of 72,000 was made by a business club. the investment was split into three parts and lasted for one year. the first part of the investment earned 8% interest. the second 6% and the third 9%. total interest from the investments was $5640. the

    asked by Sarah on March 9, 2011
  57. algebra

    an investment of $50,000 was made by a busines club. the investment was split into three parts and lasted for one year.the first part of the investment earned 8% interest, the second 6%, and the third 9%. total interest from the investments was $3960. the

    asked by mike on March 6, 2013
  58. Calculus

    A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is a maximum. (HINT: show

    asked by Grant on May 6, 2013
  59. math

    The value of a new car decreases exponentially.Suppose your mother buys a new car for 22,000. The value of the car decreases by 20% each year. a.what is the initial price of the car. The decay factor. b. write an equation to model the value of the cars

    asked by john on October 14, 2012
  60. Precalc

    An investment of $37,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the the third 9%. Total interest from the investments was

    asked by Kai on November 28, 2012
  61. Statistics

    1. A simple random sample of FICO credit rating scores is listed below: 714 751 664 789 818 779 698 836 753 834 693 802 a. Find range, variance, and standard deviation. b. As of this writing, the mean FICO score was reported to be 678. Based on these

    asked by Shannon on October 5, 2013
  62. bio 106

    Imagine that you are plant hunter embarking on a safari that takes you to the far reaches of your neighborhood supermarkets. In the aisles of your grocery store, see how many plants and plant products you can find to answer the following questions. Look

    asked by abdul on August 5, 2013
  63. Language Arts (ASAP)

    3. In "All Together Now," Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordan's appeals

    asked by Jason on December 6, 2016
  64. english (for Sra) repost

    The Lady of Shalott I have two events and have to find the quotation. 1st event The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. 2nd event The Lady floats

    asked by george on March 20, 2011
  65. English

    I have to write a "Descriptive essay" for my composition class and I need help proof reading my essay. This is the third draft I have done. I had to cut out over 400 words. The essay can be no more than 750 words. That is exactly how many I have right now.

    asked by Sandy on September 7, 2014
  66. math,algebra II

    I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 5m 4k 0 3 then theres a

    asked by jas on June 6, 2007
  67. physic

    A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is 950 N, and the stick is in contact with the puck for 4.4 ms (0.0044 s). (a) Find the impulse imparted by the stick to the puck. (b) What is the speed of

    asked by glenmore on December 4, 2011
  68. statistics

    twenty light bulbs are tested three light bulbs fail the test. two light bulbs are selected at random without replacement from this collection of bulbs find the probablilty that both light bulbs failed the test. round the answer 3 decimals places

    asked by bernie on July 29, 2016
  69. Maths

    The question is "Show that z-2 is a factor of P(z)= z^3+mz^2+(3m-2)z-10m-4 for all values of m. For what values of m is (z-2)^2 a factor of P(z)?" I've proven the first part, using synthetic division, for all values of m. But the second part, I don't

    asked by TP on April 13, 2009
  70. calculus

    A convex lens of a focal length f can be defined by the lens equation 1/f=1/p + 1/q if an object is a distance p from the lens, then the distance q from the lens to the images. For a particular lens, f=2cm and p is increasing find 1. a general formula for

    asked by donnie on February 20, 2017
  71. Physics

    A large uniform chain is hanging from the ceiling, supporting a block of mass 48kg. The mass of the chain itself is 15 kg, and the length of the chain is 2.6 m. The acceleration of gravity is 9.81 m/s^2 Find the tension in the chain at the point where the

    asked by sam on September 24, 2012
  72. Geometry

    Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive even numbers. Two of the dimensions are multiples of 5. All the dimensions are less than 16, but greater than 6. All lengths are

    asked by Brett on May 20, 2010
  73. math plz help

    Task 2: Use the table to complete each part. a. Copy the table. Extend the table by writing expressions for y when x = 5, 6, and 7. b. Simplify each expression for y in the table from part (a). What pattern do you notice in the simplified expressions? c.

    asked by electroShark797 on August 26, 2013
  74. math 1 question pls help!!!!!

    7. A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. (1 point) 30 ft3 40 ft3 60 ft3 120 ft3*** this one was tricky pls help asap!!! thanx in

    asked by TTR+S<3 on March 20, 2014
  75. Algebra

    Here's another problem I'm having a little trouble with: A piece of string is 40 cm long. It is cut into three pieces. The longest piece is 3 times as long as the middle-sized piece, and the shortest piece is 23 cm shorter than the longest piece. Find the

    asked by Celina on November 14, 2008
  76. physics

    A car, mass - 1950 kg, accelerates at +2.33 m/s (squared). Find the magnitude of the normal force acting on the car. If later, when the car is cruising at 26.5 m/s, the driver applies a force of magnitude 10,000 N to stop the car. What is the distance it

    asked by jane on February 12, 2012
  77. Physics

    The length of a string is 344 cm. The string is held fixed at each end. The string vibrates in two sections; i.e., the string has two antin- odes, and the string vibrates at 130 Hz. Find the wavelength. Answer in units of m. What is the fundamental

    asked by AJ on October 5, 2012
  78. maths

    the total revenue and the total profit functions (in Ringgit) of a product are given as follows: total revenue :R(x)= x^3-95-800x total profit: P(x)=1/3x^3+800x-120 where x is the number of units produced and sold. find the level of production in which the

    asked by Andrew on January 4, 2015
  79. statistics

    The ages (in years) of 10 infants and the number of hours each slept in a day Age, x: 0.1, 0.2, 0.4, 0.7, 0.6, 0.9, 0.1, 0.2, 0.4, 0.9 Hours slept, y: 14.9, 14.5, 13.9, 14.1, 13.9, 13.7, 14.3, 13.9, 14.0, 14.1 Find the equation of the regression line. Then

    asked by Amanda on April 18, 2012
  80. Houston community college

    A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The

    asked by Abraham on September 24, 2012
  81. Thermodynamics

    A lawnmower tractor engine produces 18hp using 40kW of heat transfer from burning fuel. Find the thermal efficiency and the rate of heat transfer rejected to the ambient. I converted the power to 13.24kW then found the efficiency by dividing 13.24kW by

    asked by Kyle on June 12, 2013
  82. Math

    A fence is to be built to enclose a rectangular area of 200 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 13 dollars per foot. Find the length L and the width W

    asked by Thomas on March 23, 2011
  83. chem

    a gas mixture is comprised of 32% oxygen and the rest is nitrogen. If the scuba tank is pressurized to a total pressure of 132 atm what are the partial pressures of the oxygen and nitrogen inside the tank? I'm having trouble understanding how to find

    asked by Anna on May 30, 2016
  84. History

    Which accurately describes exploration events of Sir Francis Drake? drake found a northwest passage to Asia through present-day Canada drake sailed to the new world and founded the colony of Jamestown drake sailed north along the coast of Greenland to find

    asked by malia on October 27, 2017
  85. math

    A card is selected from a deck of 52 playing cards. Find the probability of selecting · a prime number under 10 given the card is a heart. (1 is not prime.) · a diamond or heart given the card is red. · a King, given that the card is not a spade. Show

    asked by Melissa on July 31, 2011
  86. Physics

    A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The

    asked by Abraham on September 24, 2012
  87. Physics B

    On a spacecraft two engines fire for a time of 615 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has

    asked by Cindy on September 10, 2012
  88. Pre-Calc

    A company produces portable cassette players estimates that the profit P (in dollars) for selling a particular model is P=-76x^3+4830x^2-320,000, 0 ≤ x ≤ 50, where x is the advertising expense (in tens of thousands of dollars). Using this model, find

    asked by Sam on January 20, 2015
  89. physic echooo

    A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than to the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 2.4 s after the first, and

    asked by kya on April 11, 2011
  90. Calculus

    I am unsure of how to take the derivative of this equation. It may be the exponents that are giving me trouble but I'm not sure exactly. Find the equation of the tangent line to the curve 4e^xy = 2x + y at point (0,4). On the left side, is the "xy" the

    asked by Aurora on June 11, 2007
  91. Algebra

    Joseph wanted to throw a ball to John who was on a balcony 32 feet above him,so he tossed it upward with an initial speed of 48ft/sec. John missed it on the way up but caught it on the way down. How long was the ball in the air? What was its maximum

    asked by Rosa on January 2, 2011
  92. Math

    The height of a ball t seconds after it is thrown upward from a height of 6 feet and with an initial velocity of 80 feet per second is f (t) = -16t^2 + 80t + 6. According to Rolle's Theorem, what must be the velocity at some time in the interval (2, 3)?

    asked by Angelina on March 8, 2012
  93. algebra

    Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 11% per hour. Suppose also that a sample culture of 1000 bacteria is obtained from this population.

    asked by rhonda on November 29, 2016
  94. AOU

    How should the decision making process be followed in order to make good decisions to respond to the situation faced by the BBC in 2001? #1 - Remember that we don't do students' homework for them. #2 - Your question is not clear, which may be why you're

    asked by mohd on April 26, 2007
  95. physics

    Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's (the one who fell) weight is pulling Paul up the 45 degree slope. If Sue's mass is 66 kg and if she falls 2 min 10

    asked by sam on October 9, 2012
  96. English

    Instructions: Choose the correct word to complete the sentence. My answers are with capital letter My friend Roger …will or USE TO …always ask me about his computer. I .. USED TO or use to …try to help him out. He use to or WOULD … go on and on and

    asked by Alex on September 26, 2017
  97. chemistry

    The combustion of 1.014g of benzoic acid brings a temp change of 22.2 to 24.86^0C During the process the fuse of the bcalorimeter melts from 0.12g to0.010g .with delta H=5857j/g Find the energy change for the overall process Combustion of Benzoic acid is

    asked by heloise on March 10, 2018
  98. physics

    A PARTICLE OF MASS M IS SHOT WITH an initial velocity v making an angle b with the horizontal,the particle moves in the gravitational field of the earth. find the angular momentum of the particle about the origin when the particle is at the origin ,at the

    asked by mechanics on August 22, 2013
  99. Physics

    Two objects are connected by a light string that passes over a frictionless pulley as in the fi gure. One object lies on a frictionless, smooth incline. In the figure, m1 = 8.48 kg, m2 = 4.84 kg, and  theta = 40.2 degrees . When we let go of the mass m1,

    asked by Lindsey on January 27, 2013
  100. chemistry

    If the initial pressure of SO3(g) is 4.775 atm, calculate the % of SO3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 1000 K is 24.40. The initial pressure of the reaction products is 0 atm.

    asked by bme1 on April 7, 2010

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