# Questions Asked onAugust 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

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

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.

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

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

6. ## ADVANCED AMC8 GEOMETRY QUESTION/MATH

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!!! :)

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

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 ?

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

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

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 )

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?

13. ## math

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

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

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

16. ## Bus management

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

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

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.

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

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.

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: http://www.lautens.com/columns/arch195.html Please help thank you

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 ?

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

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?

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

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

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

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).

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

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.)

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

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

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

34. ## Legal Studies

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

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

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.

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 ?

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

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

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

41. ## ADVANCED AMC8 GEOMETRY QUESTION/MATH

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

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

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.

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.

45. ## com200

interpersonal communcation meaning

46. ## auditing

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

47. ## interpersonal communcation

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

48. ## comm200

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

49. ## statistics

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

LIst five concepts of effective business literacy

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

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

53. ## Geometry

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

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

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

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

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

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?

60. ## grammar

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

61. ## physical

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

62. ## PM

What is a home builders sample work package

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.

64. ## auditing

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

65. ## algebra

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

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.

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

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?

69. ## physical science

The prefix kilo- means what?

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 ?

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

72. ## Physics

When pressure sores develop from sustained positions, the damage occurs at two locations simultaneously â€“ 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

73. ## pre-algebra

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

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.

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

76. ## History

Give reasons why history is important

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?

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

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 ?

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

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

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 .

83. ## physics

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

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

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).

86. ## math

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

87. ## teachers aide

which of the following is an example of successive approximation?