1. Math

    How would I solve this problem? About what percent of the total population believed saying F to be true? The total population is 250,148,571.41 The population that believed saying F to be true is 136,800,000. How to calculate percent based on those given

    asked by Tiffany T on December 14, 2009
  2. Statistics

    I don't mind you showing me the caluclator key strokes to do this or show me the mathematical way whice ever thanks Here is a simple probability model for multiple-choice tests. Suppose that a student has probability p of correclty ansering a question

    asked by Kate on January 26, 2010
  3. Physics

    At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide

    asked by Brandon on March 26, 2013
  4. science

    what steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? i don't know What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? The first major

    asked by nickey on October 5, 2006
  5. English

    Can you please check if the following sentences are correct? Thank you very much in advance. 1)The first four sections correspond to the Greek classical elements of earth, air, fire and water. 2) The final fifth section is usually interpreted as referring

    asked by Franco on June 3, 2010
  6. social studies (check answers)--Mrs.Sue

    THanks and thanks again... 1.D 2.C 3.A Brazil’s culture reflects what unique aspect of its colonial history? A. its Roman Catholic missionary roots B. its ties to the West African slave trade C. its rule and settlement by the Portuguese D. its peaceful

    asked by matt on April 22, 2014
  7. life science

    An organism's ability to maintain steady internal conditions despite changes in its external environment is called biogenesis homeostasis osmosis respiration In an organism, a virus enters, and reproduces within, a(n) host cell infection interferon

    asked by joe on May 12, 2010
  8. Algebriac Expressions

    2 less than 7 times a number = 2) Sarah's age decreased by 2 = 3) One third as many books = 4) Earns $13 per hour = 5) 4 years younger than Marcus 6) 2 times a number, decreased by 4 7) 9 less than the product of 15 and a number 8) The quotient of a number

    asked by Joetta on October 27, 2015
  9. British Literature

    #11: Coffeehouses were centers for (A) literary activity (B) political debates © entertainment (D) all of the above. #11: D #12: After viewing the London Fire on September 2, 1666, Samuel Pepys (A) mailed a letter to his father (B) left town © went back

    asked by W I C K E D on September 29, 2008
  10. Chemistry

    1) A quantity of 85 mL of .900 M HCl is mixed with 85 mL of .900 M KOH in a constant-pressure calorimeter that has a heat capacity of 325 J/C. If the initial temperatures of both solutions are the same at 18.24 degrees C, what is the final temperature of

    asked by Vince on November 18, 2014
  11. physics

    A crate sits on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate (gravity would be acting into the page). Man one and man two apply forces F1 and F2, at angles of θ1 and θ2 respectively, with the

    asked by emily on June 3, 2015
  12. Social Studies

    A local park is always littered with trash. Every time Alisha takes her dog to the park, she can't help but notice that trash is everywhere. She knows that this is a hazard to the environment. When she looks around, Alisha realizes that the park only

    asked by Baby_Banana on December 4, 2017
  13. Math-linear programming

    The Furniture Co has two plants. The Eastside one makes Table and Chairs for school classrooms and the Westside one makes Desks and Computer Workstations. (See tables attached in excel). The Furniture Co is considering combining operations of both plants

    asked by Lena on December 28, 2009
  14. criminal law

    I'm needing help understand this assignment on the last question comparing Courtroom Participants: Fiction versus Reality and the links given for fiction courtrooms has nothing to do with the show law and order to be able to compare with the reality courts

    asked by Tina on April 18, 2009
  15. Math 12

    The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

    asked by Leigh on May 20, 2010
  16. math 12

    The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

    asked by Leigh on April 8, 2010
  17. English

    please can u check my work. Thank you. example of a passive sentence: Macaws eat nuts and berries. Nuts and berries are eaten by the Macaw. 1) Capuchin monkeys eat fruit, insects, leaves, small birds and frogs. my answer: Frogs, small birds, leaves,

    asked by aaron on January 7, 2018
  18. Guru Blue unit 2

    So this is realy most of unit 6 but how much of my work do you wish me to give those that may be looking for the shortcuts and don't have the extenuating curcumstances. Would be better to do this private somehow. WORKSHEET - UNIT 6 Task 1 – Identify the

    asked by Tony KC on February 25, 2009
  19. Chem

    I have a chemistry test that I need help with. My answers have stars by them Can someone please help me with the answers to this test??? Part 1 – Matter as Energy & Structure 1. When a pair of electrons is shared between two atoms, a covalent bond is

    asked by Winona on July 20, 2011
  20. Grammar

    (Check these please)Identify these sentences as compound, simple or run-on sentences. 5. Percy Shelley traveled in Europe and visited friends.(simple) 6. Shelley made friends with other poets; John Keats was Shelley's friend.(compound) 7. William Godwin

    asked by Tiffany on September 6, 2010
  21. Literature

    All of the following examples show how the author uses figurative language and imagery to characterize Mr. Rochester as dangerous in this passage EXCEPT which? A. “Mr. Rochester moved slightly, as if an earthquake had rolled under his feet: taking a

    asked by Imari on January 3, 2019
  22. algebra

    1. Describe a situation that models a linear pattern and then describe a situation that models a nonlinear pattern. Do not state which situation is linear and which is nonlinear. Your classmates will need to determine which is which and then write a

    asked by ssuban on November 10, 2016
  23. algebra

    Describe a situation that models a linear pattern and then describe a situation that models a nonlinear pattern. Do not state which situation is linear and which is nonlinear. Your classmates will need to determine which is which and then write a function

    asked by Mary on October 26, 2018
  24. Physics- uncertainty

    Eileen, Jackie, and Kathryn needed to find the difference between two angles A1 and A2, that they had drawn on a diagram:  B = A1+A2  They then had to find the cosine of B. Jackie measured A1 to be 50° and A2 to be 3°. But their pencil was kind of

    asked by Anonymous on September 17, 2014
  25. AP Calc for Reiny

    You did just fine and your second derivative is correct, if you meant (6y^2 - 4x^2)/(9y^3) except they took it a bit further. notice your numerator is -4x^2 + 6y^2 from the original 2x^2 - 3y^2 = 4 , then 4x^2 - 6y^2 = 8 , and -4x^2 + 6y^2 = -8 to get

    asked by Sanya on November 6, 2012
  26. AP Calc for Reiny

    You did just fine and your second derivative is correct, if you meant (6y^2 - 4x^2)/(9y^3) except they took it a bit further. notice your numerator is -4x^2 + 6y^2 from the original 2x^2 - 3y^2 = 4 , then 4x^2 - 6y^2 = 8 , and -4x^2 + 6y^2 = -8 to get

    asked by Sanya on November 6, 2012
  27. Physics

    There is an outcropping of ice with a large drop to a slope below. A 100kg piece of ice breaks off with a 60kg person on top of it, and falls o the slope below. The piece of ice slides down the slope to the bottom and onto a horizontal portion. It slides

    asked by Barry on July 25, 2016
  28. Math Help

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by John on January 18, 2017
  29. MATH HELP

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by Johnathan (John) on January 18, 2017
  30. Math

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by John on January 18, 2017
  31. MATH HELP

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by Johnathan (John) on January 18, 2017
  32. math

    The area of a square garden is represented by the quadratic expression 9x2 - 12x + 4. The length of one side of the square garden is 91 inches. What is the value of x ? Hint: Since the garden is in the shape of a square, the expression 9x2 - 12x + 4 is the

    asked by Jalen on November 28, 2016
  33. Math

    How would you solve this using a chart? Rodney sold twice as many cars as Greg. In April, Rodney sold 5 fewer cars than he did in March, whereas Greg sold 3 more cars than he did in March. If they sold the same number of cars in April, how many cars did

    asked by Reina on October 14, 2008
  34. chem

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

    asked by Heather on May 1, 2012
  35. Math

    In an experiment, a pair of dice is rolled and the total number of points observed. (a) List the elements of the sample space (b) If A = { 2, 3, 4, 7, 8, 9, 10} and B = {4, 5, 6, 7, 8} list the outcomes which comprise each of the following events and also

    asked by mark on March 25, 2007
  36. General Chemistry

    So I've been working on this online homework problem and got it wrong 8 times. I need help. Here's the question: 1,2-diaminoethane, H2N-CH2-CH2-NH2, is used extensively in the synthesis of compounds containing transition-metal complexes in water. If pK_b1

    asked by Dre on July 25, 2011
  37. Chemistry

    1.) How many grams of 2-propanol are expected from the complete reaction of 672 g of propene? 2.)How many moles of propane are expected from the complete reaction of 82.8 g of propene? 3.)How many grams of propane are expected from the complete reaction of

    asked by Kira on April 5, 2007
  38. Algebra II

    I have a question about Algebra polynomials. Question goes about this A rectangular painting is twice as long as it is wide. A frame surrounds the painting. The frame is a constant 2 inches wide and has a area of 196 square inches. Find the dimensions of

    asked by Math Asker on October 8, 2015
  39. Math

    I was wondering if you can help me with math real quickly. I just cant figure this out. For the first question I have to find the surface area for the given cylinder. I have to use 3.14 and round to the nearest whole number. The radius is 6ft and the

    asked by Sebby-Chan on March 27, 2014
  40. Mech. Engr./Dynamics/Physics/Math

    A ball is dropped with a velocity v0 and an angle alpha with the vertical onto the top step of a flight of stairs consisting of 10 steps. The ball rebounds and bounces down the steps where the coefficient of restitution between ball and step is e=0.6. The

    asked by Jay on May 16, 2016
  41. Mech. Engr./Dynamics/Physics/Math

    A ball is dropped with a velocity v0 and an angle alpha with the vertical onto the top step of a flight of stairs consisting of 10 steps. The ball rebounds and bounces down the steps where the coefficient of restitution between ball and step is e=0.6. The

    asked by Jay on May 15, 2016
  42. math

    Kofi and Ama both receive 50,000 dollars annually in the companies they work for. In Kofi's company, the mean annual salary of 60,000 dollars with a standard deviation of 5,000 dollars. Ama's company on the other hand has a mean annual salary of 35,000

    asked by Kofi1 on November 30, 2016
  43. English

    Can you check if the various exercises are all possible? Thank you, Writeacher. Here is exercise 1. •1) The new German teacher (arrive) _______on Tuesday, for his first lesson. 2) On Saturday night we (meet) _______our friends in the square at 3

    asked by Matthew on April 16, 2012
  44. Fraction help wrong answer

    It takes Nadia 4/9 h to complete her Language Arts homework and 2/9 h to complete her mathematics homework. Which takes longer? How much longer? I did this : It takes Nadia Language Arts home work longer by 13.34 minutes longer. 4/9 x 60 min = 240/9 =

    asked by Matty on January 10, 2013
  45. Stats

    3. Suppose you work for the Ford Motor Company and must establish regulations concerning the maximum number of people who can ride in a minivan. Ford tells you that the total number of people in a minivan follows a normal distribution with a mean of 6 and

    asked by AMbe on August 4, 2012
  46. Micro-Econ

    Graph below represents the market demand for a patented prescription drug together with the marginal cost and average cost functions for producing the drug. -MC is constant at $20 for all Quantity over 4 million -AFC is reduced essentially to 0 when

    asked by Marquis on August 2, 2009
  47. Discrete mathematics

    I need help solving this problem, I have followed the sequence forward and backwards but can't seem to find the solution. I believe it's the pigeon hole theorem. Here's the problem; Let A be any set of twenty integers chosen from the arithmetic progression

    asked by Lolita on June 22, 2005
  48. Physics

    A 4 liter sample of a diatomic gas with γ =1.4 confined to a cylinder, is carried through a closed cycle. The gas is initially at 1.00atm. and 300K. First, its pressure is tripled under constant volume. Then it expands adiabatically to its original

    asked by Brody on February 6, 2014
  49. Chemistry

    How many kcal of heat energy are required or released when 1.73 moles of butanol , C4H9OH, is warmed from -175.8 degrees F to 360.9 degrees F? The following information concerning butanol applies: normal melting point: 12.5 degrees C normal boiling point:

    asked by Garret on September 30, 2007
  50. Writing Evaluation (Writeacher!)

    What do you think? Do these paragraphs require any improvements? What do you suggest? 1. Write a paragraph discussing the courage demonstrated by Martin Luther King Jr. What I have written: Throughout the nation, Martin Luther King, Jr. is remembered as a

    asked by Anonymous on February 3, 2014
  51. BORED!!!

    HAS ANYONE EVER READ THE BOOK BEWARE PRICESS ELIZABETH BY CAROLYN MEYER? I NEED TO RITE A REPORT ON IT. SOS! The question really is -- have YOU read it? If you haven't read it, it'll be pretty hard to write a report about it. All I find when I search

    asked by schoolgirl12 on December 5, 2006
  52. math

    Which answer describes the calculations that could be used to solve this problem? Bonita brought 3 bags of apples and 2 pounds of grapes to the picnic. Each bag of apples weighed 4 pounds. How many pounds of apples and grapes did Bonita bring to the

    asked by diego on April 15, 2016
  53. math

    six cars are parked in front of a car dealership. If you are looking at the cars from the front. the red car is parked in front of the green car. the black car is between the green and the yellow car. The blue car is parked on the right side of the red

    asked by jen on September 20, 2011
  54. Future story Part 2

    Life is so perfect, my hard work and effort has brought me to the occupation I had dreamed of becoming. My desire was to become a Pharmacist, and only post secondary education has brought me to this stage. If it wasn’t for post secondary education, I

    asked by Sara on March 10, 2011
  55. Chemistry

    A hungry backpacker needs to boil 150 mL of water to prepare a cup of Ramen Noodles. The filtered river water is at a temperature of 14.2 oC. The pressure is 760 mm Hg and he wants to eat the chicken flavored noodles. How many mL of his liquid butane

    asked by Veronica on December 3, 2012
  56. History

    Based on the quote, which conclusion can be made about the United States during World War II? The quote below was written during the 1940s: "The senselessness of all the inactive manpower. . . . [M]en who are able and willing to do all they can to lick the

    asked by Acasia on April 17, 2017
  57. Physics

    Please help! A young girl with mass 42.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 94.0kg * (m/s) . Starting at 0s , a net force with magnitude F=( 8.10N/s )*t and direction due west

    asked by Pavel on October 15, 2014
  58. math

    Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to and different from adding polynomial expressions? Provide a radical expression for your classmates to simplify. In your own

    asked by Abigail on October 11, 2010
  59. science/biology

    Read the scenario. A graduate student is running a PCR reaction to study DNA extracted from an Egyptian mummy. The reaction does not seem to be working, so he checks his notes to see what he added to the reaction mix. He find the following list: mummy DNA,

    asked by Kiara on November 26, 2018
  60. Child Psychology

    I need someone to check my answers, to make sure that I have answered them correctly. My answers are marked with xxxx next to my choice out of the four choices. 1. Edwin is doing his doctoral work in the area of gifted education. One of the major

    asked by Sharon on July 14, 2011
  61. World History

    Which statement most correctly describes the treatment of African Americans during the Vietnam War? African American soldiers were often promoted to leadership positions due to the vigorous fighting spirit of their segregated units. African American

    asked by Jay on June 11, 2019
  62. Algebra

    I am stuck, pleas help, i have the example but I am still not able to figure it out... Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 Find the value of X...2/5=x-2/20 First, get the X terms on one side of the equation and the numbers on the other. 2/5=X-2/20

    asked by Helpless Again on May 23, 2007
  63. Jiskha explanation from DrBob222

    1. This is a homework help site, not a homework do site; i.e., our objective on this site is to help students understand a concept so they may work through a problem. That is to say that we USUALLY do NOT provide direct answers. 2. Most of us volunteers

    asked by Ms. Sue on November 14, 2014
  64. Human Services

    This is late can somebody look at my answers and tell me if they are correct? I have to choose one of the following: A. bandwagon—the idea that “everybody” does this or believes this B. categorical statements—stating something in a way that implies

    asked by Ally on June 12, 2010
  65. Chem

    1) A 15.0 g sample of nickel metal is heated to 100.0 C and dropped into 55.0 g of water, initially at 23.0 C. Calculate the final temperature of the nickel and the water, if the specific heat capacity of nickel is 0.444 j / g x C. 2) In a coffee-cup

    asked by Kim on November 11, 2008
  66. math

    Write the integer that is represented by a point midway between -76 and 76 on the number line. Choose a nonzero integer for n to show that –n can be evaluated as a positive number. Scoring in Golf. A golfer played 8 rounds on a tournament course with the

    asked by Anonymous on February 21, 2011
  67. Chemistry

    Magnesium metal reacts with hydrochlroic acid according to following reaction: Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2 (g) over interval of 10.00s, the mass of Mg changes by -0.22g. What is the corresponding rate of consumption of HCl (in Mol/s) ? So what i

    asked by Rez on June 14, 2015
  68. Algebra

    The life expectancies for men and women in the United States can be approximated by the following formulas: Women: E= 0.126t+76.74 Men: E=0.169t+69.11 where E represents the length of life in years and t represents the year of birth,measured as number of

    asked by kim on March 11, 2012
  69. Chemistry

    I'm working on a problem that says: A 4.00 gram sample of a mixture of CaO and BaO is placed in a 1.00 L vessel containing Co2 at a pressure of 730 torr and a temperature of 25C. The CO2 reacts with the CaO and BaO forming CaCO3 and BaCO3. When the

    asked by Zara on August 12, 2015
  70. English

    Sir Thomas More wrote Utopia so that it is a frame narrative. Explain why he did this. My work: Sir Thomas More wrote Utopia so that it is a frame narrative because he wanted to connect a story with in a story. Thomas More did this to connect stories in

    asked by Mandi on August 9, 2014
  71. math

    A box contains 5 red bowls, 6 yellow bowls and 3 white bowls. If 4 bowls are randomly drawn from the box at the same time, (a)find the probability that exactly 2 red bowls are drawn; (b)find the probability that at least 2 red bowls are drawn. My work: (a)

    asked by Charles on July 22, 2015
  72. Qvntitative Methods

    CASE STUDY: 1 The bulbs manufactured by a company gave a mean life of 3000 hours with standard deviation of 400 hours. If a bulb is selected at random, what is the probability it will have a mean life less than 2000 hours? Question: 1) Calculate the

    asked by Sardar Hakim on September 25, 2013
  73. Geometry

    A plane is located at C on the diagram. There are two towers located at A and B. The distance between the towers is 7,600 feet, and the angles of elevation are given. a. Find BC, the distance from Tower 2 to the plane, to the nearest foot. b. Find CD, the

    asked by SkatingDJ on March 26, 2016
  74. Calculus Help!

    At a price of $7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your

    asked by Anonymous on July 16, 2014
  75. Economics

    I'm reposting this as I did not receive a response. Posted by Dwane on Wednesday, November 22, 2006 at 1:23pm. I pasted the problem I am to solve below. I missed the first week of class, so the professor told me to do this case as a make-up assignment;

    asked by Dwane on November 28, 2006
  76. math

    Michel wants to buy his mother handmade chocolates for Mothers Day. He has $15.oo to spend. The price of each chocolate is given below. Fudge $0.60 NutClusters $0.75 Truffles $0.80 a)create and solve an equation for each type of chocolate to determine how

    asked by sara on December 18, 2011
  77. Physics

    Ball A leaves the edge of a level table with speed Va and falls to the floor. At the instant ball A leaves the table edge, another identical ball, B, is released from rest at the height of the table top and also falls to the floor. It is observed that the

    asked by Balthazar on October 5, 2010
  78. math

    a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 3) imagine that instead of losing yardage on each rush in the 4th quarter, the running back

    asked by kayla on November 27, 2010
  79. physics

    Derek the drunk driver drives his car off the road, onto a gravel strip next to the road. Derek does not have anti-lock brakes, so his wheels lock when he enters the gravel area, and the car slides to a halt. Derek's car is traveling at a speed of 20m/s

    asked by aok on December 15, 2010
  80. College algebra

    A person is driving a car on a straight road. The graph shows the distance in y miles that the individual is from home after x hours. the graph has the following points (1, 40) and (3, 90) Find the slope intercept of the line y = ____x + ______ How fast is

    asked by Lee on December 6, 2010
  81. physics

    1. Measurements show that there is an electric field surrounding the Earth. Its magnitude is about 100 N/C at the Earth's surface and points inward toward the Earth's center. From this information, can you state whether the Earth is negative or positive?

    asked by Nicole on July 15, 2010
  82. Physics - rojectile Motion (check pls)

    Imagine that you are solving a problem in projectile motion in which you are asked to find the time at which a projectile reaches a certain vertical position. when you solve the problem you find out two different positive values for time that both satisfy

    asked by Shaila on August 21, 2010
  83. English

    I writing narrative story on theme that With independence comes amplified accountability. teacher say it be good if it be third person narrative. though i not know what to write about, teacher show us example and one which a girl write be through a birds

    asked by Mohammad on October 4, 2012
  84. physics

    under the influence of its drive force, snowmobile is moving at constant velocity along a horizontal patch of snow. When drive force is shut off, snowmobile coasts to a halt. a) During the coasting phase, what is the net external force acting on the

    asked by Sushmitha on February 12, 2012
  85. English

    I forgot to include the following statements. I really hope you can have a look at them too. 1) They regretted missing OR having missed the bus. 2) They escaped with a ship or by a ship. 3) I have my groceries delivered by the supermarket. 4) Petra lives

    asked by Franco on October 17, 2010
  86. english1994m

    Typical of ballad "lord randall" omits details and ends with half the strory told. do you think the young man's lover poisned him? why or why not. what other questions in regarding the plot are left unanswered? MY ANSWER: Using dialogue and passion, this

    asked by Mark J on September 29, 2011
  87. geometry

    Hello, Can some one check my work. I just want to make sure I answered the questions correctly. Thanks, Nikki 1) Every rhombus is a parallelogram. True 2) Every parallelogram is a rectangle. False 3) Every rectangle is a square. False 4) Every square is a

    asked by nikki on October 19, 2011
  88. Geography (Ms. Sue)

    1). Some Russians have objected to the creation of new federal districts. Why might there be disagreement over the districts? A: There might be disagreement over the districts because the President of Russia hopes that the heads of the new federal

    asked by Anonymous on October 11, 2013
  89. Maths please someone help me out!!!

    3. The efficiency of an industrial pump decreases by a fixed percentage each year. The percentage decrease each year is with respect to the efficiency of the pump at the start of each year. Over each four year period, the efficiency decreases by 80%. Let

    asked by Jasmine on April 3, 2014
  90. Maths algebra

    The efficiency of an industrial pump decreases by a fixed percentage each year. The percentage decrease each year is with respect to the efficiency of the pump at the start of each year. Over each four year period, the efficiency decreases by 80%. Let us

    asked by Jasmine on April 2, 2014
  91. Math(trigonometry)

    Data: á = 32 degrees, side a = 2.5 feet and side b = 4 feet 1. Identify the swinging side and the fixed side in a possible triangle. 2. Compute the length of the shortest swinging side that will construct a triangle containing the data. (compute the

    asked by dena on April 13, 2008
  92. Math

    1. The curve y=10/2x+1 -2 intersects the x-axis at A. The tangent to the curve at A intersects the y-axis at C. (i) Show that the equation of AC is 5y+4x=8 (ii) Find the distance of AC 2. The equation of a curve is y=1/6(2x-3)^3-4x (i) Find dy/dx (ii) Find

    asked by Stephen on January 14, 2013
  93. math

    Using the numbers 1 through 9 with no repeats, find a 9 number such that: the first digit is divisible by 1, the first two digits are divisible by 2, the first 3 digits are divisible by 3, and so on until we get to a 9 digit number divisible by 9. You

    asked by maddi 5 on October 25, 2012
  94. algebra 1

    Can someone solve theses for me? Factor the polynomial x2 + 7x + 12 completely Factor the polynomial x2 – 4 completely Factor the polynomial 18a2b – 4ab + 10a completely x2 + 7x + 12 = (x+4)(x+3) x2 – 4 = (x+2)(x-2) 18a2b – 4ab + 10a = 2a(9ab - 2b

    asked by mike on May 15, 2007
  95. data management gr.12

    In a bag there are 8 red jelly beans and 7 green jelly beans. The 4 jelly beans are randomly chosen from the bag without replacement. a)create a probability distribution table for choosing red jelly beans b)what is the probability that at least 2 chosen

    asked by Jenna on December 20, 2016
  96. Physics

    A car heads due west on Interstate 80 going 63.0 km/hr for 2.1 hours. The car then turns and heads exactly northwest on Interstate 42 going 53 km/hr for 3.3 hours. What is the resultant displacement of the car? I've done some work on it and I have a good

    asked by George on October 2, 2016
  97. statistics am i right so far

    SO FAR I HAVE 9.63 FOR THE 1ST 2 COLUMNS AND 7.56 FOR LAST COLUMN FOR THE VARIANCES. I GOT Z= .0875 SEDIFF =1.2364 SEm=.6019 for 1st set of #s and SEm=1.08 for 2nd set of #s is that correct and now what? A total of 23 High School students were admitted to

    asked by jabrony on November 30, 2011
  98. Chemistry :P

    Hey. Just Started A New Unit In Chem And The Sad Thing Is That I Had A Sub And She Did Not Know Nothing About This Stuff. So If Anyone Could Write Some Notes For Me Here That Are Understandable That Will Be Able To Help Me With The Work I Have To Finish.

    asked by Fizzylicous on November 16, 2011
  99. Chemistry Disaster XXP

    Hey. Just Started A New Unit In Chem And The Sad Thing Is That I Had A Sub And She Did Not Know Nothing About This Stuff. So If Anyone Could Write Some Notes For Me Here That Are Understandable That Will Be Able To Help Me With The Work I Have To Finish.

    asked by Fizzylicous on November 16, 2011
  100. Chemistry

    If 3.21 g of BeC2O4 * 3H2O is heated to 220 C calculate the volume of the H2O(g) released, measured at 220 C and 735 mm Hg? please help me Convert g BeC2O4*3H2O to mols BeC2O4*3H2O. Convert mols BeC2O4*3H2O to mols H2O. Use PV = nRT to calculate volume of

    asked by Karisa on April 8, 2007

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