# Questions Asked onNovember 11, 2017

1. ## Mathematics

Perfume is sold in two different sizes of bottle The 80ml bottle is priced at £55 The 50ml bottle is usually priced at £45, but is on special offer If you buy one 50ml bottle of perfume, you get a second for half price By calculating the price per ml

2. ## physics

A uniform metre rule of mass 90g is pivoted at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark,determine m.

3. ## Math

Erica has 8 squares of felt, each with area 16. For a certain craft project she cuts the largest circle possible from each square felt. What is the combined area of the excess felt left over after cutting out all the circles? A) 4(4-pi) B) 8(4-pi) C)

4. ## Maths

A contains some red and blue balls. There are four more red than blue balls. A ball is removed at random and replaced. A second ball is removed. The probability that the two balls are different colours is 21/50. How many balls are in the box. Ans Drawing a

5. ## Physics

A ping pong ball of mass m = 4.9 gram is precisely measured in position to an accuracy of 10^-10 m. What must be the uncertainty in its velocity (in 10^-20 m/s)? (delta_x)(delta_p) > h/4pi (delta_x)(m)(delta_v) > h/4pi (10*10^-10)(0.0049kg)(delta_v) >

6. ## Math

A manufacturer claims that the mean amount of juice in its 16 ounce bottles is 16.2 ounces. A consumer advocacy group wants to determine whether the mean amount is actually less than this. The mean volume of juice for a random sample of 70 bottles was

7. ## Math

Convert the map scale to a unit rate. How many inches represent a mile? Show your work. Interpret the meaning of the unit rate. 3/10 in.=7/8 mile

8. ## Maths

How much do you need to subtract from 43/10 to make 4?

9. ## Chemistry

3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate is produced? 3. How much is in

10. ## John

solve the quadratic equation 2x^4-3x^3-7x^2 12x-4=0

11. ## Math - Accounting

Consider a home mortgage of 125,000 at a fixed APR of 9% for 30 years. - calculate the monthly payment - determine the total amount paid over the term of the loan - Of the total amount paid, what percentage is paid toward the principal and what percentage

12. ## Physics

An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls

13. ## Chemistry

Mg + 2HCl ----> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent if 75g of HCl? 1. What is the limiting reagent? 2. What is the volume of hydrogen produced? 3. How much is in excess?

14. ## Chemistry

Hey bob- Here's what I got so far: 3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate

15. ## Literature and Composition

Read the following description from The Red Badge of Courage. â€œAs he looked all about him and pondered the mystic gloom, he began to believe that at any moment the ominous distance might be aflame. . . Staring once at the red eyes across the river,

Which of the following are fast ways of improving your credit score (within 60 days)? a. dispute any errors on credit report b. Settle up any delinquent accounts with creditors and ask them to report the account as Paid As Agreed c. all answers can quickly

17. ## Literature and Composition

1. The contrast of the officers describing Henry’s unit as “mule-drivers” and then later describing Henry as one of the best fighters in the regiment best supports which of the following themes in the red badge of courage? A. honor and reputation ***

18. ## Physics

An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls

19. ## physics

Internal energy for real gas

20. ## physics

Internal energy for real gas

21. ## Maths

A man travelled 5/3km by car, 8/6km travelled by bus remaining distance travelled by walk what is the part of walk on total distance?

23. ## Math

The reciprocal of a number decreased by the reciprocal of twice the number is greater than or equal to 2. Find the number(s) for what this’s true

24. ## Algebra I

Which equation has a graph parallel to the graph 9x + 3y = -22 a. y=3x -22 b. y=-3x + 8 c. y=1/3x + 12 d. y= -1/3x-2****

25. ## Chemistry

H2SO4+2NaOH->2H2O+Na2SO4 1.) How many grams of H2SO4 are needed to produce 135L of water? 2.) How many molecules of water are produced when 12g of sodium sulfate are created?

26. ## Algebra I

Which equation is the equation of a line that passes through (-10, 3) and is perpendicular to y=5x-7? a. y=5x +53 b.y=-1/5 x -7 c. y=-1/5x+1 d. y=1/5x +5.

27. ## Chemistry intro

H2SO4+2NaOH->2H2O+Na2SO4 1.) How many grams of H2SO4 are needed to produce 135L of water? 2.) How many molecules of water are produced when 12g of sodium sulfate are created?

28. ## solar energy

electron concentration in n-type region in(in 10E18 cm^-3)

29. ## physics

A uniform metre rule of mass 90g is pivoted at the 40cm mark. If the rule is in equilibrium with an unknown mass market placed at the 10cm mark and a 72g at the 70cm mark,determine m.

30. ## health

This subject would lose 12 pounds in 17 weeks by riding a bike at 10 MPH for 40 minutes per day fi ve times per week. Your weight-loss goals can be determined in the same way. Part 2 Now apply your knowledge of energy expenditure through exercise by

31. ## Physics

What’s the deceleration of a juggernaut to stop from 45m/s by constantly decelerating at 9m/s 2(squared) ?

32. ## Chemsitry

Write the chemical reaction that is responsible for the pH of a buffer which contains NH3 and NH4Cl. Write the reaction in such a way that is appropriate for a Ka. Thank you!

33. ## Algebra

Write the quadratic function in the form f(x)= a(x-h)^2+k. Graphed Vertical parabola with the point (2,1). Write the answer in f(x)=.

34. ## Math

A ribbon is 3 metres long. Can we cut it into 50 cm pieces and have nothing left over ? Write the reason why or why not .

35. ## Algebra

Rewrite the function in f(x)=a(x-h)^2+k form. Graph it by using the transformation. F(x)=x^2+8x+15

36. ## Chemistry

Calculate the volume of 0.5 molar HCl required to titrate 22ml of 0.5 molar Ba(OH)2

37. ## Chem

1. Name 3 insoluable compounds, each with a different anion 2. Name 3 strong acids, only 1 can be from group 17 3. Name 3 strong bases, all from different groups

38. ## Math

You want to buy three books that are on sale at 20% off. The original prices of the books are 2.50,4.95 and 6.00 how much will you save? Write it in distributions property and without distribution property. I need help putting it on distribution property

39. ## chemistry

How much 10.0 M HNO3 must be added to 1.00 L of a buffer that is 0.0100 M acetic acid and 0.100 M sodium acetate to reduce the pH to 5.05 help please :(

40. ## Chemistry

H2SO4+2NaOH->2H2O+Na2SO4 How many molecules of water are produced when 12g of sodium sulfate are created? Is this answer correct: 75Lx6.02^23= 452molecules H2O

41. ## Physics

Posting this question cause I struggled forever and could not get an answer. You attach one end of a string of length L to a small ball of inertia m. You attach the string's other end to a pivot that allows free revolution. (a) What is the tension as a

42. ## Physics

Posting this question cause I struggled forever and could not get an answer. You attach one end of a string of length L to a small ball of inertia m. You attach the string's other end to a pivot that allows free revolution. (a) What is the tension as a

43. ## Physics

Johnny was in a closed door meeting and suddenly his phone rung. His immediate response was to cover his cellphone with his hand and then asked to be excused. Why did he cover his phone with his hand? PS: Please explain it briefly but the thought is very

44. ## Math

You are purchasing four items and want to calculate the tax. The items cost \$2.50, \$8.75, \$3.00, and \$10.25. The tax rate is 6%. How much is the tax? Write in distribution property and without. It is right for distributions property.

45. ## Calculus

Find the inflection points y=x^2/x^+3 So far I've found y'=6x/(x^2+3)^2 but I'm stuck in finding y''. So far, I'm at 6(x^2+3)^2-24(x^2+3)/(x^2+3)^4 and the next step says y''=6(-3x^2+3)/(x^2+3)^3=0 and I don't understand how. Thanks

46. ## Writing

Please Help Re-Word!!! I have close family members who are part of the LGBTQ community, and as a reader I ------------- that this bill would pertain to “individuals not in the LGBTQ community may not understand the political forces that impact people in

47. ## Math

The Mendes family bought a new house 10 years ago for \$101,000. The house is now worth \$160,000. Assuming a steady rate of growth, what was the yearly rate of appreciation ?

48. ## Math

An Anthropologist finds bones that her Instruments measure it as 0.921% of the amount of carbon- 14 the bones would have contained when the person was alive. How long ago did the person die? The half life, t 1/2, carbon 14 is 5,730 years. Round To the

49. ## Social Studies

I need help putting this in a sentence.... multiplicity and social identities shouldn’t determine who should and shouldn’t adopt, it would be about love.

50. ## Psychology

I'm writing an essay about myself and have to incorporate the things I learned in psychology. One of them was classical conditioning. An example I wanted to use for this was seeing my mother dress up and put on makeup everytime we went to parties, so I

51. ## Social Studies

Need help re-wording!!! Women’s reproductive rights is still a political issue our leaders are still arguing over whether or not trans women are women they are, which adds a whole additional layer of prejudice and disinclusion typical sorts of sexism

52. ## Williamson Reaction- CHEM

What would be the fate of any unreacted NaOEt reactant, ie. where does it end up, would it be a contaminant in the crude product or would it be removed, if so how (williamson reaction)

53. ## Chemistry

So i am asked to write the equation representing the third ionization energy for Cr, and what I could come up with is Cr^2+(g)->Cr^3+ + e(not sure if I am right). For the second part I am told that the electron affinity of K is 48 kJ/mol, and i am supposed

54. ## Pre Algebra

A spoke on the bike wheel is about 12 inches long. The diameter of the wheel is about how many inches?

55. ## Math Pratcice

Ted makes a grilled cheese sandwich using 3 ounces of cheese. Each ounce of cheese has 3.5 grams of saturated fat, and also some unsaturated fat. The cheese in Ted’s sandwich has a total of 18 grams of fat. How many grams of unsaturated fat does each

56. ## Math Help

Ok i need a little help. a times b (a x b)what does the eqaution mean????????/

57. ## Science. Might Be eays for you, i dont know

What is gravity? How does gravity effect weight? How do people take advantage of gravity?

58. ## English

Is "words are eaten" personification?

59. ## Pls help im stuck

Guys what does gravity do to muscles and tissue? I think it weakens them, but im not quite sure.

60. ## Estimating thevpriduct of decimal and a whole numb

31.04 × 300 0.56×48 47.2× 93

61. ## Economics

What labour standards regarding safety, working conditions, overtime and the like should companies hold foreign factories to' those prevailing in that country or united states. Is there like a rule that says companies have to go by the labour policies of

62. ## Help me Bobpursley

Does gravity effect eating habits and muslces? How?

63. ## Help Bob Pursley

So i am asked to write the equation representing the third ionization energy for Cr, and what I could come up with is Cr^2+(g)->Cr^3+ + e(not sure if I am right). For the second part I am told that the electron affinity of K is 48 kJ/mol, and i am supposed

64. ## Algebra

Define variables, write an equation and solve. The perimeter of a scalene triangle is 75 inches. The middle side is 6 inches longer than the shortest side. The longest side is 15 inches less than twice the middle side. Find the length of all three sides.

65. ## History

What does Y2K stand for in history?

66. ## Estimating the product of decimal and a whole numb

How did you get 25 on 0.56 × 48

67. ## Math

To help raise funding for attending a science competition out of town, John and his three friends sell candies in their neighborhood. The average of each person’s sale is \$200. John’s sale is 1/3 of Steve’s sale, Steve’s sale is 1/4 of Paul’s

68. ## Chemistry

140 Cal to heat 355 gm of water with initial temperature of 25 degree celsius, final temp?

69. ## Math

ABC has vertices A(0, 6), B(4, 6), and C(1, 3). Find the orthocenter of ABC?

70. ## geography

Write a paragraph explaining how what we will study in this course relates to this career. Your paragraph should include an introductory sentence, 3 connections to the course and a closing sentence. The course is geography and the job is a geogrpahy

71. ## English

1. She had a puzzled look on her face. 2. She had a confused look on her face. 3. She had a _______ look on her face. [#1 means #3, doesn't it? What other adjectives can we use for the blank?]

72. ## Algebra

Rewrite the function in f(x)=a(x-h)^2+k form. a. f(x)=x^2-5

73. ## English

1. He told a lie to me yesterday. 1-2. He told one lie to me yesterday. 2. He told lies to me yesterday. 3. He tells lies to me. [Does #1 mean #2? Or is 'a like' in generic use? What about #2 or #3? Is 'lies' used as a generic noun? Or just several lies?]

74. ## English

1. Scientists are puzzled as to why the whale had swum to the shore. 1-2. Scientists are puzzled as to why the whale has swum to the shore. 2. Scientists are puzzled about why the whale had swum to the shore. 3.Scientists are puzzled concerning why the

75. ## English

1. I think the telephone is the most important invention. 2. I think a telephone is the most important invention. 3. I think telephones are the most important inventions. ---------------------------------- Are they all the same in meaning? Can we use only

76. ## english

I'm writing an essay analyzing Martin Luther King Jr's "I have a dream" speech. Does his speech contain any logical fallacies? I can't find anything online for this and even from reading the speech. HElp??

77. ## maths

divide these amounts into the given ratios: 12,3:1 15,2:1 can you explain how to work it out? thank you

78. ## Chemistry

Been stumped on this problem for a day now. 2KClO3-->2KCl+3O2 a) If 53.0g of potassium chlorate breaks down, what volume of oxygen is produced? For this one I got: 14.6L O2 b) How many grams of potassium chloride are produced from problem a? For the life