Questions Asked on
August 15, 2013

  1. MATH

    A four by four grid of unit squares contains squares of various sizes (1 by 1 through 4 by 4), each of which are formed entirely from squares in the grid. In each of the 16 unit squares, write the number of squares that contain it. For instance, the middle

    asked by mathemagiacian
  2. maths

    If one of the root of the quadratic equation ax^2 + bx +c =0 is three times the other, show that 3b^2 = 16ac

    asked by Jayden Haddy
  3. Chemistry ?

    How many moles are contained in a 4.67-L sample of gas at 30°C and 199 kPa? A. 1.7 mol B. 11.8 mol C. 0.37 mol D. 3.7 mol I guessed D, but I'm not sure.

    asked by Kaylee
  4. Lang ARts

    hat fact best explains why it is significant that Angelou's narrative is set in 1940? In 1940, the United States was not yet involved in World War II. In 1940, segregation of blacks and whites was still the norm. In 1940, most high school students did not

    asked by Jack
  5. chemistry

    4. A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of gas would result if the pressure was 0.5 atm? A. 1.8 L B. 5.6 L C. 0.2 L D. 2.2 L My guess is B but I just want to double check

    asked by Hannah

    Let S be a subset of {1, 2, 3,... 100}, containing 50 elements. How many such sets have the property that every two numbers in S have a common divisor that is greater than 1? I really need help. Give me a good explanation with he answer. Thanks!!! :)

    asked by mathemagiacian
  7. Chemistry

    8. Imagine you have two containers of gas, one labeled gas A and one labeled gas B. Gas A has an average speed of 700 m/s and gas B has an average speed of 1100 m/s. Both containers are being held at the same temperature. How could you match the average

    asked by Hannah
  8. maths

    At Baker High, 3 out of every 4 graduates go on to college . Of these 2 out of every 3 graduate from college. What percent of students graduating from Baker High will graduate from college ?

    asked by Tomas
  9. Statistics

    Use the following figure to answer questions 12-14: Figure 3b (British J Derm 2008) comes from a randomized trial of DHA versus a placebo pill for treating eczema. The figure shows boxplots of the eczema severity score, SCORAD, at baseline and week 8 for

    asked by Rupal
  10. Biology

    Which of the following statements about the compound HCl is true? *The physical and chemical properties of HCl are different from those of H2 and Cl2. *Only the physical properties of HCl are different from those of H2 and Cl2. *Only the chemical

    asked by Cassie
  11. maths

    The enrollment of Kennedy High School dropped from 1200 to 1000 over a three-year period. What the percent of decrease during this time? A. 20 B 16 2/3 C. 25 D. 200 E. 2 My answer is 1200-1000=200 200/1200= 1/6 ( some wrong )

    asked by Tomas
  12. Chemistry

    A piece of dry ice (solid carbon dioxide) with a mass of 30.5g is allowed to sublime. Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 22 ∘ C and a pressure of 746mmHg?

    asked by Anonymous
  13. math

    If 7 3/4 dozen 1/2" connector fittings cost $31.00, what is the cost per dozen?

    asked by anonymous
  14. maths

    How much money is saved by buying an article priced at $80 with a 40% discount,rather than buying an article marked at $90 with discounts of 35% and 10% ? A. $ 4.65 B. $1.50 C. $10.50 D. $3.15 E. $4.25 not just answer

    asked by Tomas
  15. ENglish

    1. ntelligence is measured by: an IQ test. an EIQ test. multiple intelligence tests. multiple ways. is it A 2. Which do you think is the most proven way people, in general, learn? What we read What we see What we hear What we do and experience is it D 3. o

    asked by amy
  16. Bus management

    the first step in developing the compensation plan for a sales force is to:

    asked by Rachel
  17. English

    1. A causal analysis essay discusses: predictions of the future based on current circumstances and past behavior. the effects of a past event. why events happened. All of the above i'm confused between C and D 2. in persuasive argumentation essays, a

    asked by amy
  18. chem

    18. What is the molecular mass of potassium hydrogen carbonate (KHCO3)? A. 116 g/mol B. 68 g/mol C. 100 g/mol D. 84 g/mol My guess would be A? I got 110.1, but that's not an option.

    asked by Jenny
  19. chemistry

    What is the empirical formula of a compound that is 14 g calcium, 11 g oxygen, and 0.7 g hydrogen? A. CaO2H B. Ca2OH2 C. CaOH D. Ca(OH)2

    asked by Adam
  20. unknown

    The density of platinum is 23.4 g/cm3 at 20°C. Calculate the mass of 75.0 cm3 of platinum at this temperature.

    asked by Anonymous
  21. Short essay "A Thankless Experience"

    Describe the sentence structure Stephen Lautens uses in "A Thankless Experience". Support your view withe examples from the essay. This is the story: Please help thank you

    asked by Steve
  22. math help

    A gear with 20 teeth revolving at 200 revolutions per minute is meshed with a second gear turning at 250 revolutions per minute. How many teeth does this gear have ?

    asked by Tomas
  23. public speaking

    Organizing a speech means to: research the materials. presenting a speech in a logical manner. selecting words to use. adapt the speech to audience. i'm confused between A and B

    asked by amy
  24. Chemistry

    1. What is the mass of the 3.7 mol PbO2? A. 884 g PbO2 B. 65 g PbO2 C. 0.15 g PbO2 D. 825 g PbO2 I honestly have no guess for this one. Can anyone tell me how to do it?

    asked by Hannah
  25. Chemistry help?

    The mass of a quantity of NiCl2 is 24.6 g. How many formula units are in the sample? A. 3.2 3 1023 NiCl2 formula units B. 5.3 3 10–21 NiCl2 formula units C. 1.1 3 1023 NiCl2 formula units D. 1.9 3 1027 NiCl2 formula units

    asked by Kaylee
  26. chemistry question

    What mass of propane (C3H8) is needed to produce 346 g carbon dioxide in the following reaction? C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g) A. 346 g C3H8 B. 115 g C3H8 C. 5075 g C3H8 D. 1.86 g C3H8

    asked by Adam
  27. Earth Space (In desperate need)

    My teacher didn't have time to finish the lesson day, and I can't find the answers anywhere online or in my book. What are 2 main ways in which the earth moves? What does each movement cause? I have it rotates on its axis which causes seasons, but I cant

    asked by Bryce
  28. physics

    A hollow steel buoy in thee form of a sphere of radius 0.5m is fixed by a wire to the base of a river. If the mass of the buoy is 20kg, calculate the tension in the cable. (Take density of water=1000 kilograms per cubic meter).

    asked by Hilder
  29. maths

    A pulley revolving at 200 revolutions per minute has a diameter of 15 inches. It is belted to a second pulley which revolves at 150 revolutions per minute. Find the diameter, in inches, of the second pulley. not just answer, please

    asked by Tomas
  30. Business Math

    Three of every seven sales transactions at Dollar Discount are on credit cards. What percent of the transactions are NOT credit card sales? (Round percentages to the nearest tenth.)

    asked by Tammy
  31. Geometry

    A person standing h feet above sea level can seecd miles to the horizon. The distance r is the radius of the earth = 3963 miles. d is the tangent to the circle forming a right angle to the radius. h + r is the tangent. Solve using Pythagorean theorem and

    asked by Loki
  32. help please!

    f(x)=x+1/x Find all critical numbers. Find where the function is increasing and decreasing. Find critical points and identify each as a relative maximum, relative minimum, or neither. Find second order critical numbers and tell where the graph is concave

    asked by CALCULUS!!!
  33. math

    a wheel of a bicycle has a diameter of 70cm and is rotating at the rate of 200 revolutions per minute calculate the speed of the bicycle in km/hour

    asked by sashey
  34. Legal Studies

    I nee help to write my legal studies assignment that's due tomorrow,any want to help?

    asked by Kaylee
  35. physics

    Two long, straight, parallel wires 10 cm apart carry currents in opposite directions. (a) Use the right-hand source and force rules to determine whether the forces on the wires are (1) attractive or (2) repulsive. Show your reasoning. (b) If the wires

    asked by john
  36. math

    William, Joseph, Margaret, Frank, and Jeffrey all work for the same company. Frank has been there the longest, eleven years and makes the most money, three times as much as Jeffrey. Margaret has been there the second longest and makes $50,000 a year.

    asked by Anonymous
  37. chemistry

    what is the molarity of an antifreeze solution glycol in water containing 15.4 g of ethylene glycol (HOCH2CH2OH) and 84.6 g H2O ?

    asked by ethelyn
  38. bus

    Which one of the following statements describes the actions of an organization practicing TQM?(total quality management) A- Maximize ROI B- Emphasize the short term C- Make improvement goals easy and attainable D- Make customer needs the highest priority

    asked by Anonymous
  39. english

    1. An essay which is informative and tells how something happened is a(n) __________ essay. causal analysis process analysis exemplification comparison/contrast is it A 2. An essay that answers the question “What is the current situation on campus after

    asked by amy
  40. Statistics

    Use the following table to answer questions 7 and 8: This table displays results from a prospective cohort study evaluating meat intake and mortality. The table displays hazard ratios for mortality by quintile of red meat intake. Table 2. Multivariate

    asked by Rupal

    In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally upward and to the right. How many ways are there for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard? This seems like

    asked by mathemagiacian
  42. Chemistry?

    What mass of sulfur has to burn to produce 4.5L SO2 at 300°C and 101 kPa in the following reaction? S(s) + O2(g) -> SO2(g) A. 3.07 g S B. 68.8 g S C. 41.0 g S D. 13.5 g S

    asked by Kaylee
  43. Chemistry

    14. What is the number of moles in 42 g of NaCl? A. 1.8 mol NaCl B. 0.72 mol NaCl C. 0.61 mol NaCl D. 1.2 mol NaCl I'm sorry, I have no idea what I'm doing here.

    asked by Jenny
  44. chemistry

    17. What is the major element per mass in NaOH? A. Oxygen End of exam B. Hydrogen C. Sodium D. All elements contribute the same mass.

    asked by Jenny
  45. com200

    interpersonal communcation meaning

    asked by Anonymous
  46. auditing

    In what respects is estimating risky? Can you give an example. Thanks!

    asked by Linda
  47. interpersonal communcation

    The process of exchanging mes­sages, usually between two people, to create and share meaning is called: (

    asked by Anonymous
  48. comm200

    ________________ is learned and maintained through interpersonal communication with oth­ers. (Points : 1)

    asked by Anonymous
  49. statistics

    Suppose test scores follow a normal distribution with ì= 80 and ó = 5. Calculate the z-score for a score of 90.

    asked by Deborah
  50. business

    LIst five concepts of effective business literacy

    asked by Chantel
  51. physics

    You are on an archaeological dig and discover a strange artifact. It is a utensil that appears to be carved out of an elephant's tusk You analyze it and discover that it has 0.625 the amount of carbon-14 you would find in a living specimen. 1.How many

    asked by Jason
  52. physics

    A 500kV power line has a maximum Voltage drop of 3% and is design to carry 1000 Amps. If the conductor has a 0.026 ohms/km resistance, what is the maximum distance the conductor can be run (to the nearest complete km)? Hint: P=IE, E=IR How do you solve

    asked by anonymous
  53. Geometry

    Help. PT=5x+3 and TQ=7x-9 Find the value of PT

    asked by Vanessa
  54. leadership

    what are the core values that your leadership model emphasizes? In what ways does my leadership model reflect existing scholarship on leadership and in what ways is my approach unique to me? what barriers and opportunities exist towards the implementation

    asked by sarah
  55. leadership

    In your leadership model, what are the a leader's most important task? What are the core values that your leadership model emphasized?

    asked by sarah
  56. History

    I have a paper I must do and have been trying all summer to finish. I have read the book The Story of Sacagawea and now what I need to do is write what the main idea/topic is ( which I know is Sacagawea) but then I have to write a main idea's # 1 and # 2

    asked by Sandy
  57. Math/Physics

    A 500kV power line has a maximum permissible Voltage drop of 3% and is design to carry 1000 Amps. If the conductor has a 0.026 ohms/km resistance, what is the maximum distance the conductor can be run (to the nearest complete km)? Hint: P=IE, E=IR How do I

    asked by anonymous
  58. English

    "In this third circle, write four quotations from The Lightning Thief that relate to the center sketch. Document this quotation properly (The Lightning Thief, Riordan, pg. 84). Does the quotations I put have to be in complete sentence? For example my

    asked by Luke
  59. maths

    A baseball team won 50 of the first 92 games played in a season. If the season consists of 152 games, how many more game must the team win to finish the season winning 62 1/2% of games played?

    asked by Tomas
  60. grammar

    Most moviegoers like to bring their own snacks to save money. Does this sentence have a pronoun antecedent error?

    asked by nita
  61. physical

    choose one quality which is important to your chosen activity technical physical personal special

    asked by safi ali
  62. PM

    What is a home builders sample work package

    asked by kim
  63. math

    Which numbers between 40 and 49 have 2 and 3 in their prime factorization?Use exponents to write the prime factorization of each number.

    asked by Anonymous
  64. auditing

    OK so will post this again!!! PLEASE!!!!! In what respects is estimating risky? Can you give an example. Thanks!

    asked by Linda
  65. algebra

    Jared can work 54 math problems in one hour, how many problems can he work in ten minutes

    asked by roxanna
  66. math

    a rectangle with a perimeter 70 feet can have an area of 150 ft^2. use A(x) to demonstrate this fact algebraically and graphically.

    asked by Shelby
  67. Business

    Hello, I hope someone can help me with the question below, since I am completely stuck. One day, a bank receives $5000 deposit on which they are going to pay 2% per year. Same day, a student wants to take out a loan of $5000. The bank tells them that it

    asked by Lisa
  68. math

    The local pizzeria is advertising a special where you can get a large pizza with up to 3 different toppings for only $10. If the pizzeria offers 11 different toppings, how many different types of pizza can you get in this special deal?

    asked by Anonymous
  69. physical science

    The prefix kilo- means what?

    asked by rebekah
  70. math

    Two boys weighing 60 pounds and 80 pounds balance a seesaw. How many feet from the fulcrum must the heavier boy sit if the lighter boy is 8 feet from the fulcrum ?

    asked by Tomas
  71. Physics

    6. Within an x-ray tube, a metal disc (the anode) receives a huge amount of energy that is converted to internal energy (heat) within the anode. The surface temperature can easily reach 2000° C. Because the anode is within a vacuum and therefore there is

    asked by John
  72. Physics

    When pressure sores develop from sustained positions, the damage occurs at two locations simultaneously – the superficial layers of skin next to the table, and the deep tissue next to the bony structure (e.g. lateral aspect of the femur) that the

    asked by John
  73. pre-algebra

    describe and correct the error in multiplying -5 and -12, then divide by -4. X -5(-12) -60 ______ = _____ =15 -4 -4

    asked by teeaira
  74. Science

    Need help coming up with something that Life Science is "like" or "not like". I know it is the study of living things but not sure what word to say it is like or not like. Thanks.

    asked by Brandi
  75. Science

    • Explain the scientific and technical concepts related to communication. o Which types of electromagnetic radiation are typically involved in the process of communication? o How is information transmitted? o What are the main differences between wired

    asked by Fostina
  76. History

    Give reasons why history is important

    asked by nathan
  77. Physics

    One long wire carries current 26.0 A to the left along the x axis. A second long wire carries current 68.0 A to the right along the line (y = 0.280 m, z = 0). Where in the plane of the two wires is the total magnetic field equal to zero?

    asked by Emily
  78. mult choice

    The Balance Sheet of a manufacturing firm will include which account that will NOT be included in the Balance Sheet of a service firm? A. Cash B. Accounts Payable C. Prepaid Insurance D. Work in Process Inventory

    asked by dakota
  79. math

    A television set listed at $160 is offered at a 12 1/2% discount during a store wide sale. If an additional 3% is allowed on the net price for payment in cash, how much can Josh save by buying this set during the sale for cash ?

    asked by Tomas
  80. maths

    Find the value of k if the product of the roots of the quadratic equation kx^2 + 4x + k^2 -21 = 0 is 4

    asked by Jayden Haddy
  81. Physics

    block a 10 kg is connected to block b 20 kg by a mass less string on a horizontal surface (coefficient of kinetic friction 0.1). block b is connected by another string to a hanging mass M through a mass less pulley. what is the minimun value of M that will

    asked by Anthony
  82. maths

    If the roots of the quadratic equation 4x^2 + px +5 = 0 are a and a+2, find the real values of p .

    asked by Jayden Haddy
  83. physics

    A 1200W engine supplies a force of 90N to move an object at a constant velocity. With what velocity will it move?

    asked by alice
  84. multiple choice / define

    A transfer price is the: A. price for which a company sells its products to customers. B. price at which goods are moved from one department of a company to another department of the company. C. basis on which indirect expenses are allocated. D. price at

    asked by dakota
  85. maths

    Given that a and b are the roots of the quadratic equation 2x^2 - 4x +3 = 0, find the quadratic equation in x with roots a^2-(1/b) and b^2-(1/a).

    asked by Jayden Haddy
  86. math

    given that 2xsquared-5x+k is a perfect square . find the value of k

    asked by sashey
  87. teachers aide

    which of the following is an example of successive approximation?

    asked by hir
  88. spc

    a long strip of sheet metal 12 inches wide is to be formed into an open gutter with a rectangular cross-section as shown. what is the maximum possible area of the cross-section?

    asked by azis
  89. maths

    a)If one root of the equation x^2 + a(3a-5)x = 2(x+4a) is negative of the other. Find the values of a . b) If a>0, use the result of (a) to solve the equation.

    asked by Jayden Haddy