# Questions Asked onMay 10, 2014

1. ## maths

If alpha and beta are the zeros of the polynomial p(x)=x^2+x+1 then find the value of 1÷alpha+1÷beta 2)alpha^2+beta^2

2. ## H.E.L.P

1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine

3. ## Physics

A cyclist starts from rest and coasts down a 6.5∘{\rm ^\circ} hill. The mass of the cyclist plus bicycle is 95kg{\rm kg} . The cyclist has traveled 270m{\rm m} .What was the net work done by gravity on the cyclist? How fast is the cyclist going? Ignore

4. ## Chemistry

How would you write these chemical reactions?Can someone do one or two reactions for each problem, so I could get an idea of to them? ..I'm nit sure how most of the oeoducts wouls turn out..especially if it is a precipitate. 5. When Mn^2+ ions are

5. ## math

____ income is subject to federal taxes. Gross Adjusted gross Net Taxable

6. ## (1-13) Chemistry - Science

Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas

7. ## calculus

find the volume of solid inside the paraboloid z=9-x^2-y^2, outside the cylinder x^2+y^2=4 and above the xy-plane 1) solve using double integration of rectangular coordinate. 2) solve using double integration of polar coordinate 3)solve using triple

8. ## Physic

If a scuba diver fills his lungs to full capacity of 5.5LL when 8.2mm below the surface, to what volume would his lungs expand if he quickly rose to the surface? Assume he dives in the sea, thus the water is salt.

9. ## Science-3 question

1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

10. ## Ethics in Criminal Justice

The correlativity of rights and duties mean that: A. moral duties override moral rights. B. moral rights override moral duties. C. the existence of moral rights implies duties by which other must abide. D. None of the above. I think the answer is A but not

11. ## math 7Probability help

two numbers rolled can be added to get a sum. Find P(sum is even) is it 1/4 ? or 1/2? I think it is 1/4

12. ## math

R and T are points on straight line PQ on which PR = RT =TQ. what percent of PT is PQ ?

13. ## MATH

A paper bag contains a mixture of three types of treats: 12 granola bars, 10 fruit bars, and 8 cheese strips. Suppose that you play a game in which a treat is randomly taken from the bag and replaced, and then a second treat is drawn from the bag. You are

14. ## (1-16)Chemistry - Science

Consider the reaction: SO2 (g) + NO2 (g) ==> SO3 (g) + NO (g) At T = 1000 K, where the reaction is exothermic with an equilibrium constant K = 9.00 The reaction vessel is charged initially with all four gases, each at a pressure of 0.5 atm. After

15. ## Criminal law ethics

The Categorical Imperative variation, "Act so as to treat humanity, whether in your own person or that of any other, as an end and never as a means only" entails a key component of Kant's moral philosophy that all human being have: A. intrinsic worth or

16. ## Science

1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine

17. ## math

Divide: 12x^2y - 6xy + 4x^2 ____________________ 2xy Thank you!!

1. For a bar magnet, the magnetic field lines point a. towards the South pole. b. towards the North pole. c. always towards the magnet. d. always away from the magnet. my answer: a 2. Magnetic field lines a. are straight lines. b. are always circles. c.

19. ## math

2. Over 75% of the revenue received by the federal government is from ____ and ____ taxes. a. sales and income b. income and excise c. Social Security and estate d. estate and sales e. income and Social Security

20. ## maths

Given the quadratic equation y = -x^2 + 2x + 3. a) Will the graph turn upwards or downwards? b) What are the coordinates of x and y intercepts? c) What is the coordinate of the turning point? d) Use your answer in parts (a,b,c and d) to sketch the graph.

21. ## Sciene

Is Meiosis actually Mitosis happening twice? My answer- Yes because they are both a cell division process.

22. ## chemistry

This functional group can be generated by oxidation of an aldehyde. Oxidation is just the reaction with oxygen, but unlike combustion you are not producing carbon dioxide and water.

23. ## Plz, check my answers.

1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

24. ## English

Which of the following sentences is grammatically correct? a.Only Bill wanted to go to the lake. [Intended meaning: Bill wanted to go to the lake, but no one else did.] b.Bill only hinted that he would help us move. [Intended meaning: Bill hinted but did

5. A magnetic field map shows a. the direction of the magnetic field. b. a few representational field lines. c. relative strength of the magnetic field. d. All of these choices are correct. my answer: d 6. Magnetic field lines a. can cross each other when

26. ## math

Over 75% of the revenue received by the federal government is from ____ and ____ taxes.

27. ## science

A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction? (1 point) A.The

28. ## math

On which of the following types of income would you normally have income tax withheld?

29. ## english

Which is the best place to find more info about the development of photography in the mid 1800/s. -photography manual - history textbook .encyclopedia

30. ## (1-17)Chemistry - Science

Consider the reaction: SO2 (g) + NO2 (g)  SO3 (g) + NO (g) At T = 1000 K, where the reaction is exothermic with an equilibrium constant K = 9.00 If the reaction vessel is instead charged initially with SO3(g) and NO(g), each at a partial pressure of

31. ## MAth

4. What is the slope of the line that goes through (6, 5) and (3, 1)? (1 point) – – 5. The slope of the line that goes through (−3, −5) and (−3, −6) is ______. (1 point)

32. ## Algebra 2

Select the first five terms in the arithmetic sequence an=8n, starting with n=1

33. ## Organic Chemistry

A student obtains a yield of 79% from his salicylic acid. How many grams of salicylic acid will the student need to produce 135 g of aspirin?

34. ## math

at the beginning of the year,Daniel was 62 inches tall. Now he is 66 inches tall. Find the percent of change

35. ## Math 222

How do you subtract and write 1/2-3/4 in simplest form. I am stuck can anyone help me. this is what i cam up with. 1 3 2 -- - = - 2 4 2 I am not sure if this is correct.

36. ## Engineering skill

anybody here to give me notes to solve this question (A and B are two points on a pipe of diameter 600 mm. the grid reference for the two points are given in the below , together with the elevation of the top of the pipe at these points. A drain pipe is

37. ## Math 6

n ice cream stand sells chocolate, vanilla, and strawberry ice cream as well as a choice of 22 toppings. How many choices are there for a single flavor of ice cream with one topping? How do I do this? is it 46 choices? Am I right?

38. ## English help

1. Thyme: herb:: A. Fearless: brave B. sedan: auto C. Speech: mouth D. Auto: garage Is it b? 2. Bat: raccoon:: A. Bird: robin B. insect: snake C. Owl: possum D. Porpoise: whale Is it c? 3. Penny: coin A. Dollar: pound B. whisper: speak C. Epic: poem D.

39. ## English help

From the words below supply the words needed to complete the sentences. Prolific, incontrovertible, tentative A. He said that he had made a TENTATIVE offer on a pair of rabbits; he planned to call back and confirm if his wife did not object. His wife,

40. ## English help

From the words below supply the words needed to complete the sentences. Compatible, virtuoso, vilify, vulnerable, incipient, colloquial A. The VIRTUOSO who had spent ten years refining his skills as a violinist would sarcastically VILIFY those who made

41. ## English help

From the words below supply the words needed to complete the sentences. Querulous, commiserate, tedious, pugnacious, thwart, incorrigible A. Trying to keep the INCORRIGIBLE prisoners from escaping was Jack's responsibility. Although he sometimes enjoyed

42. ## Math7 Am I right?

Below are the results of tossing a number cube 8 times. Find the experimental probability of tossing an even number. 3,4,1,2,5,1,6,5 3/8 right?

43. ## ALGEBRA

2nd posting - my mistake When will the dependent variable in the equation y= sqrt [x+4-3] equal or exceed 4 • x ≥ –0.17 • x ≥ 45 ** is it this one? • x ≥ 48 • x ≥ 53

44. ## chemistry

This type of functional group is often sweet smelling and may be used as a fragrance. When it reacts with water it will produce a carboxylic acid and an alcohol. I chose ester but it is wrong

45. ## Social studies...

How did the Fugitive Slave Act and the Kansas-Nebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era? Could

46. ## Ethics/Criminal Justice

These two questions are similar in type and I am really confused by the textbook. 1) Which of the following objections to criminal punishment might be raised by a Kantian ethical framework? A. Incapacitation amounts to using offenders to benefit the

47. ## chemistry

One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury(II) oxide is reduced to mercury. HgO(s) + H2O( ) + 2 e–  Hg( ) + 2 OH–(aq) If 2.3  10–5 amperes flows continuously for 1200 days, what mass of Hg( )

2+√-16

49. ## ALGEBRA

A right triangle’s hypotenuse is 20 cm long. What is the length of the side opposite a 60° angle? Give your answer to the nearest tenth of a centimeter. • 40 • 18.5 • 20 • 17.3 Please show how.

50. ## Algebra

The 22 students present for a recent test in Ms. Huang’s class had an average score of 88. When students who were absent took the test, three scored 4 points higher than the average and two scored one point higher than the average. What is the new class

51. ## Chemistry

Please explain how to set this problem: A solution has a density of 1.73 g/ml. If it's weighs 4.3 ounces, what is the volume. ?

52. ## math need help urgent

Mr. Michaluk has a $50,000 personal (revolving) line of credit with the Canadian Imperial Bank of Commerce (CIBC). The loan is on a demand basis at a floating rate of prime plus 1.5%. On the fifteenth of each month, a payment equal to the greater of$100

53. ## Chemistry - Science (Dr. Bob222)

Liquid chloroform (CHCl3) is placed in a closed container and allowed to equilibrate with chloroform vapor. With the temperature held constant, additional chloroform is introduced into the system, and the vapor-liquid equilibrium is reestablished.

54. ## Calculus

Given f'(x)=9/2x(3x^2+2)^1/2 (this is the derivative of y= sqrt[(3x^2+2)^3]) , state any values of x for which the function is not differentiable

55. ## Algebra 1B

f(x) = -7x^2 + 3x + 5.What is the appropriate values when solving? I just do not understand help please

56. ## Chemistry

During an acid-base titration, 25 mL of NaOH 0.2 M were required to neutralize 20 mL of HCl. Calculate the pH of the solution for each: a) Before titration b) After adding 24.9 mL of NaOH c) At equivalence pt d) After adding 25. 1 mL of NaOH e) The pH of

57. ## Math

Simplify so it is one fraction. (8x/(x-8)) - (4/(x-8)) (8x - 4)/(x - 8)?

58. ## algebra

a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude 5.3x10^2 um. Find this earthquake's magnitude. Round this answer to one decimal place.

59. ## Algebra

An artifact was found and tested for its carbon-14 content. If 75% of the original carbon-14 was still present what is its probable age to the nearest 100 years?. carbon -14 has a half-life of 5,730 years.

60. ## chemistry

Match the name or structure with its functional group. Each molecule has only one functional group. My choices are alkane, alcohol, alkyne, carboxylic acid, alkene, aldehyde, ketone, ester, and ether. 1. 2-propanol- alcohol 2. 2-methoxypentane- alkane 3.

61. ## pre algebra

What is the slope for the following data? X -1 0 1 2 Y 0 1 2 3 y2 - y1 ---------- x2 - x1 rise / run

62. ## Algebra

The temperature of a mass of gas (T) varies inversely with volume (V). For a volume of 500 cm^3, the temp is 2.5 degrees Celcius. For a volume of 100 cm^3, what would the temperature be? 12.5 degrees?

63. ## Math Literacy, Business Studies, Economics& Tourism

Im in grd12 and would like to know which available courses are there for these subjects and which career can I get into. #Urgent

64. ## ALGEBRA

Solve for b. [sqrt] b^4/25=4 I do not know how to type two of the possible answers.

1. Name the components of the respiratory system in the order incoming air would encounter them during breathing. trachea, pharynx, larynx, alveoli, bronchi bronchi, larynx, alveoli, trachea, pharynx larynx, trachea, bronchi, pharynx, alveoli pharynx,

66. ## math

If you needed to make a key business decision, explain what information you would want to review and why.

In a Forbes magazine article from October 2013 Susan Adams wrote of a survey done by the National Association of Colleges and Employers from Bethlehem, Pa. From early August to mid-September that year they asked 200 hiring managers what skills they

68. ## algebra

Given the function f(x)=7-(1/8)x ,find a formula for the inverse function. show work.

69. ## math

If 20 teachers in a faculty of 80 are transferred,what percent of the original faculty remains?

70. ## Science 2

One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now , how old will you be when light that is leaving. Arcturus today reaches Earth ? How far, in kilometers, will it have

71. ## English

1. The house itself was ugly. 2. I saw Mr. Smith himself. 3. I don't like the house itself. --------------- Are they all grammatical?

72. ## Math

Expand (1+y+ky^2)^8 until y^3

73. ## MATH

A conveyor belt sushi restaurant lets you choose what you want to eat from variously-coloured plates that go by. You pay based on the colours of the plates. After dinner, 1 green plate, 4 yellow plates, and 2 blue plates. Use the Fundamental Counting

74. ## physical

A 2500‐kg vehicle traveling at 25 m/s can be stopped by gently applying the breaks for 20 seconds. What is the average force supplied by the breaks to stop the vehicle?

75. ## calculus

find the volume of solid inside the paraboloid z=9-x^2-y^2, outside the cylinder x^2+y^2=4 and above the xy-plane

76. ## Math

Solve for the inequality: 1/3^x (1/3^x - 2) < 15 I know the answer is x > - (log 5/log 3), can someone explain me how?

77. ## english

What should you do to the following sentence to avoid using a double negative? Even with glasses on, she didn't never see well. A. Leave the sentence as is. B. Even with glasses on, sue didn't ever see well. C. Even with glasses on, she never saw nothing

78. ## english

What is the correct way to write mens' in this sentence? After their group got caught in the rain, the mens' clothes were all soaked. A. Leave the sentence as si. B. Men's C. Mens's D. Men'

79. ## english

Please help: Which sentence uses apostrophes correctly? A. Martha's new bike was stuck and couldn't nove. B. Tracy's only brothers' birthday si the day before hers. C. Walter's childrens' grades have been improving lately.

80. ## (1-11) Chemistry - Science (Dr. Bob222)

Liquid chloroform (CHCl3) is placed in a closed container and allowed to equilibrate with chloroform vapor. With the temperature held constant, additional chloroform is introduced into the system, and the vapor-liquid equilibrium is reestablished.

81. ## 1-12. Chemistry - Science

At STP, 3.0 L of D2 reacts completely with 3.0 L of E, producing 1.5 L of a product. What is the formula of the product?

82. ## (1-15) Chemistry - Science

Assume a gas of molecular mass M g/molecule obeys the Maxwell Boltzmann distribution of speeds at temperature T. If u2> u1, the ratio of the number of molecules at speed u2 to the number at speed u1 a) is always less than one. b) is always greater than

83. ## math

If a and b are both positive numbers,and a>b,which of the following could be true? I. ab is greater than either a or b. II. ab is greater than b but less than a. III. ab is less than either a or b. (A) I only (B) II only (C) III only (D) I and II only (E)

84. ## (1-22)Chemistry - Science

Consider the following reaction: C(s) + H2O (g) ⇌ CO (g) + H2 (g) (Kp = 0.45 at 900 K) What is the equilibrium partial pressure of H2O when the initial partial pressure of water is 1.00 atm? a) 0.43 atm b) 0.58 atm c) 0.22 atm d) 0.52 atm e) 1.16 atm

85. ## math

The average of P numbers is x and the average of N numbers is y. What is the average of all the (P+N)numbers? a. x+y/2 b. x+y c. Py+Nx/xy(P+N) d. x+y/P+N e. Px+Ny/P+N

86. ## Finance

Determine the present values if \$5,000 is received in the future (at the end of each indicated time period) in each of the following situations: a. 5% for 10yrs b. 7% for 7yrs c. 9% for 4yrs