# wendy

Popular questions and responses by wendy
1. ## Chem

A flexible container at an initial volume of 5.12 L contains 7.51 mol of gas. More gas is then added to the container until it reaches a final volume of 18.3 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles

2. ## Math ~CHECK MY ANSWER~

1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? a. Square root 120 , n , Square root 3 ****** b. - Square root 256 ,

3. ## Algebra 2

the test score for a math class are shown below. 81,84,82,93,81,85,95,89,86,94 what are the mean, median, and mode of the data set?

4. ## Cybersafety and Photo Management ~CHECK MY WORK~

1) Which term, as it relates to the Internet, means to act in an unthinking, unsafe, or disrespectful manner online? a. Irresponsible behavior b. Moderate-risk behavior ****** c. Low-risk behavior d. Responsible Behavior 2) Caley took a bunch of pictures

5. ## English Compostion

I have to write an argumentative essay regarding the lack of proper nutrition below is my introductory paragraph am I on track or am I lacking for this type of essay? It is no secret that the lack of proper nutrition is a problem worldwide that affects

6. ## Math

The sum of multiples of 6 between 6 & 999? I got 83166, but my answer key says 82665.. Is my answer wrong? I used the term formula to find 166 terms multiples of 6, and then the sum formula to get 83166.

7. ## math

Answer each question about the following series: 3 + 4.5 + 6 + 7.5 + 9 + 10.5. What is the common difference of the arithmetic sequence on which the series is based? d =

8. ## Algebra/Math

The difference of two numbers is 29. If five times the smaller number is twice the larger, the result will be one. What is the larger number ? Please help.. I need an answer in 10 days. Thank you, much appreciations.

9. ## English

I am stuck on these two questions(can you check #1 one over for me?)! For the poem Annabel Lee; 1. What romanticized explanation does the speaker give for the death of his love, Annabel Lee? He tells us that angels from heaven were jealous of their love

10. ## economics

Can South Africa afford to have totally free trade with the rest of the world?

11. ## Chemistry

Adding helium to a balloon increased its volume from 360.9 mL to 3.532 L. If the final number of moles of helium in the balloon is 22.3 mol, what was the initial number of moles of helium in the balloon? Assume the balloon contained only helium initially.

12. ## chemistry

how many grams of sodium chloride are there in 2.5 L of a 0.4% w/v solution?. need to know how to figure this out

13. ## Principles of Accounting

E2-2 Selected transactions for D. Reyes, Inc., an interior decorating firm, in its first month of business, are as follows. Jan. 2 Invested \$10,000 cash in the business in exchange for common stock. 3 Purchased used car for \$4,000 cash for use in business.

14. ## stats

Assume that​ women's heights are normally distributed with a mean given by mu equals 63.4 in​, and a standard deviation given by sigma equals 1.8 in. Complete parts a and b. a. If 1 woman is randomly​ selected, find the probability that her height is

15. ## Social Studies

1) Which U.S. region has the smallest states by land area? a. West b. Midwest c. Northeast d. South My Answer: 1) C NORTHEAST

16. ## Math( Attn: Reiny)

1. A rental business charges \$12 per canoe and averages 36 rentals a day. For every 50-cent increase in rental price, it will lose two rentals a day. What price would yield the maximun revenue? I was told the answer by Reiny, but I couldn't get the right

17. ## Biology

In lactic acid fermentation, ______ is _______ a) lactate...oxidized b) pyruvate...reduced c) ethanol...oxidized d) NAD+...oxidized e) NADH...reduced

18. ## Mathematics

In a class,30 offer Biology,21 offer Chemistry and 22 offer Physics.15 offer Physics and Biology,10 offer Physics and Chemistry and 13 offer Biology and Chemistry.2 offer Physics only,3 offer Chemistry only and 7 offer Biology only. a.illustrate this

19. ## Maths

The 10th term of an a.p is -27 and the 5th term is -12 what is the 18th term? Find also the sum of its 25 term

20. ## Chemistry

The reaction are free radicals what are the product... 1)CH3-CH2-CH2 +CH3-CH2CH3 2)CH3-CH2-CH3 +CH3-CH-CH3 3)CH3-CH2-CH2 +CH3-CH-CH3 4)H+H

21. ## CRJ

Which of the following is a "tendency to behave in certain ways in certain circumstances?" Question 5 options: Character trait Virtue Vice All of the above

22. ## Statistics

In a certain city of several million people, of the adults are unemployed. If a random sample of adults in this city is selected, approximate the probability that at least in the sample are unemployed. Use the normal approximation to the binomial with a

23. ## physics

(a) Calculate the angular momentum of an ice skater spinning at 6.00 rev/s given his moment of inertia is 0.490 kg·m2. (b) He reduces his rate of spin (his angular velocity) by extending his arms and increasing his moment of inertia. Find the value of his

24. ## Chemistry

a. Exactly 4.000 mol of NH3 is burned in a constant volume (bomb) calorimeter immersed into 100.0kg of water. The temperature of water increases by 3.619 degrees C after the reaction. Calculate the heat released by the reaction. Neglect the heat capacity

25. ## Trig

2sin^2(x) = 2 + cos(x) interval [0,2pi) How do I solve this? Help would be greatly appreciated!

26. ## Physical Science

When aqueous solutions of Na2CO3 and BaCl2 are mixed, the products are NaCl and?

27. ## math

Solve by elimination 8x-9y=8.5 7y-2x=-4.5

28. ## Finance

An AT&T bond has 10 years until maturity, a coupon rate of 8 percent, and sells for \$1,100. a. What is the current yield on the bond? b. What is the yield to maturity?

29. ## Chemistry

Nitroglycerin C3H5(NO3)2 is a common explosive which decomposes according to the equation. 4C3H5(NO3)2 - 12CO2 + 10H2O + O2 +6N2 ΔH= -5.720*10^3 KJ. Calculate the heat for the decomposition for the 10.6g of the Nitroglycerin.

30. ## Science

Ascorbic C3H7O4COOH,also known as VitaminC, is an essential Vitamin for all mammals. Among mammals, only humans, monkeys and guinea pigs cannot synthesis it in their bodies LA for ascorbic acid is 7.9*10^-5. Calculate [H3O+] and pH in a 0.110M solution of

31. ## Science

Find out the energy of emitted photon when an electron in Li2+ ion returns to its ground state from n=2 level.

32. ## math

The Gallup Poll uses a procedure called random digit dialing, which creates phone numbers based on a list of all area codes in America in conjunction with the associated number of residential households in each area code. Give a possible reason the Gallup

33. ## Health

Blood also passes through the small intestine and liver during which type of circulation pulmonary renal portal*** cardiac

34. ## Math

Explain how you could use a map to estimate the actual distance between Miami, Florida, and Atlanta, Georgia.

35. ## English

Another question regarding the poem Annabel Lee. Can you check my response for me and help me elaborate on the rhythm explanation please; 1. What is the overall tone of the poem? How does the rhythm of the poem affect the tone? my ans: The tone of the poem

36. ## math

building A is 180 feet shorter than building B. The total height of the two building is1480 feet. find the length of each building

37. ## chemistry

What physical property of water and HCl allows us to separate them from the zinc chlorine compound produced in the reaction?

38. ## English

I have an essay and my topic is "our views of the past change as we mature". So I am stuck on what pieces of evidence I should write about. I am thinking of writing a narrative, and I want my "mature view" to be that the world doesn't evolve around me

39. ## Chemistry

A 6.00 ft cylinder has a radius of 26 in. It contains 189 lb of helium at 25 celsius. Express the volume of the cylinder (V=ðr²h) in liters, the amount of helium in moles and the temperature in Kelvin.

are retail investors or traders permitted to naked short a stock? Who is permitted to naked short a stock assuming there has been no suspension of this practice. following the sec suspension of naked shorting post june 2008 did other nations follw this

41. ## chemistry

ihave two solutions. in the first solution , 1.0 moles of sodium chloride is disslved to make 1.0 liters of solution . in the second one, 1.0 moles of sodium chlorine is added to 1.0 liters of water.is the molarity of each solution the same?

42. ## science

what is the electrical output of a wind turbine with a diameter of 25metres when the wind speed is 10 metres per second?

43. ## economics

Which economic system is used to handle a crisis of epic proportions, such as natural disaster?

44. ## Psychology

Where can I find information on how our culture, defines our relationships?

45. ## geometry

Ray QS is the angle bisector of angle pqr. Pqr has a bisecotor qs and angle pqs is 40 degrees. What would be the two angle measures not given in the diagram?

46. ## CHEMISTRY 1C

An equilibrium constant ... A. is small when the products are favored in the reaction. B. is calculated by dividing the concentration of the reactants by the concentration of the products. C. is the same, regardless of the initial concentrations of

47. ## english

how manymen were on the federal trade commission?

48. ## Algebra

The length of a rectangle is twice the width. If the area is 64^2cm, find the dimensions of the rectangle. Use the table or a calculator if necessary. Round to the nearest hundredths. I do not know how to set the problem up. Thank you for your help.

49. ## Math

The lemonade stand sells cone-shaped cups of lemonade for \$0.25 each .How will it cost you to fill the thermos of lemonade you chose in par a

50. ## math

Let R be the region bounded between the plane z = 1 and the cone z = 2 − p x 2 + y 2 . Describe region R using spherical coordinate

51. ## Math

mr. kebu spends 1/8 of his monthly salary in school fees and a third of the remainder on rent. he spends 3/4 of what remained after paying school fees and rent on food. if he remains with 1470 calculate his monthly salary

52. ## Physics

An electric motor is used to lift a load of bricks through a vertical height of 20m.the tension in the cable attached to the electric motor is 2000N.calculate work done by the electric motor on the bricks

53. ## Pre-Calc

Sock Drawer had 10 white socks and 4 black socks. List and count possible combinations: 1) of two socks, if order matters 2) of two socks, if order doesn't matter 3) of three socks, if order matters 4) of three socks, if order doesn't matter

54. ## Chemistry

Given that 4NH3+5O2-4NO+6H2O ΔH= -906kJ. What is the Enthalpy change for NO +3/2H2O - NH3 +5/2 O2

55. ## Chemistry

Some plants require acidic soils for healthy growth. Which of the following could be added to soil around such plants to increase the acidity of the soil? 1.iron(ii)sulphate 2. sodium sulphate 3.aluminum sulphate 4.iron(iii)sulphate 5.caesium sulphate.

56. ## Chemistry

Calculate hydroxyl ion concentration, ph and the percent hydrolysis for 0.1M solution of sodium cyanide (hints know for cyanide ion is 2.5*10^-5).

57. ## Chemistry

Determine the vapour pressure lowering at 25 degree Celsius of 1.25molality sucrose solution assume the solution behaves ideally (sucrose is C12H22O11). The vapour pressure of pure water at 25 degrees Celsius is 23.8torr ( hint 50.0g of sucrose was used).

58. ## Chemistry

The density of a 15.00% by mass aqeous solution of acetic acid is 1.0181g/mL What(i)the molarity (ii)molality (iii) the mole fraction of each component?

59. ## Chemistry

What must be a concentration of benzoate ion in a 0.55M benzoic acid solution so that the ph is 5.00?

60. ## Chemistry

How much heat is required to warm 122g of water by 23.0°C? Specific heat is 4.184 J/g° C. Please show work:(((

61. ## I love math science

Label all the part of speech in the sentence

62. ## math

Naya has a number riddle for you to solve: The number has two digits, it is less than 40, you say it when you count by fives and the sum of the digits is 25.

63. ## chemistry

WHAT IS THE RATIO OF THE NUMBER OF MOLECULES IN 71 GRAMS OF CHLORINE TO THE NUMBER OF MOLECULES IN 2 GRAMS OF HYDROGEN

64. ## chemistry

1,2 of carbon combined with 0,1 grams of hydrogen to form a compound . a.FIND THE EMPIRICAL FORMULA OF A COMPOUND b.ITS Mr WAS FOUND TO BE 78 ,FIND THE MOLECULAR FORMULA

65. ## stats

Suppose we had two families, where Family A included 5 children and Family B included only 1 child. If we randomly chose a child from the families, what is the probability that the child came from Family A?

66. ## Calculus

Thank you - (Enter your answers using interval notation. If an answer does not exist, enter DNE.) y = 4x + [5/sin x], (−π, π) concave upward (x,y)- concave downward (x,y)-

67. ## Pre-cal

Solving the principle values of x of the equation 4cos^2x-3=0

68. ## Life science, Life science and History

I want to be a doctor (immunologist) I'm not sure about the last subject should it be history or Geography

69. ## helpppp

Write an equation of the line passing through (3,21)and (-4,-35) in the form of A x + B y = C. Where A, B and C are real numbers

70. ## algebra

A national home improvement store's revenue y (in millions of dollars) during the years from 1996 to 2007 is given by the equation y=15x+55 where x is the number of years after 1996. a)Use the equation above or a graph of the equation to complete the

71. ## Algebra. NEED HELP ASAP PLEASE

The fourth month this year, you have \$368 saved. At the twelfth month this year, you have saved \$504. What is your savings rate?

A city is considering building a commuter train. The steepest section of track has a fall of 72.8 feet for a horizontal distance of 280 feet. What is the grade of this section of track? The downgrade of this section of track as a reduced fraction is?

73. ## math

A is 100m away from headquarters. B is 8m away from headquarters. A runs twice as fast as B. How far away from headquarters will B be when A arrives at headquarters. I drew a number line and did a jump of 16 for A and a jump of 8 for B. This brings A to

74. ## algebra

A local salesman receives a base salary of \$900 monthly. He also receives a commission of 7% on all sales over \$1000. How much would he have to sell in a month if he needed to have a monthly income of \$2900?

75. ## math

We are planning a reception for our daughter. The hall that we are renting charges a \$70 cleanup fee. In addition to the cleanup fee, they charge \$28 per guest for food and drinks. If we have \$1,800.00 available, what is the maximum number of guest we can

76. ## Math/Physics

I am unsure of what exactly I am looking for in this problem... One of the highlights of the Calaveras Fair, besides the bullfrog jumping contest, is the watermelon seed spitting contest. The seed spitting is being done in the direction of s ⃗=5i ⃗+j

77. ## Math

Wendell is making punch for a party. the recipe he is using says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups lemon-lime soda in order to make 18 servings of punch. a. How many cups of punch does the recipe make? b. if Wendell makes 108

78. ## Math

You score 15,16,17,14, and 19 points out of 20 possible points on five tests. what must you score on the sixth test to have of at least 16 points?

79. ## Math

Mr. Lee invested some money. Lost 4% in a stock and gained 3.2% in a bond. Overall he lost 11.2\$. If he invested the amount in the stock to the bond vice versa, then he wouldve gained \$3.2, how much is in the bond and how much is in the stock? I am so

80. ## Chemistry

I posted this question earlier but the person that answered did not include how to find the moles of the problem When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat

81. ## Chemistry

When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat capacity as liquid water, the heat produced in the reaction between two solutions is: I don't know how to find

82. ## Chemistry

When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat capacity as liquid water, the heat produced in the reaction between two solutions is: I don't get how to find

83. ## chemistry

What will be the final temperature of 650 g of water initially at 5.5°C if it is heated by burning 7.5 g of carbon to carbon dioxide. The molar heat of reaction is -393.5 kJ/mol. I do not understand how to do this question

84. ## Math

1. If the point (-3,30) is on the graph y=(x-1)^2+14, where will the point be on y=(x-8)^2-6? I don't understand what this is asking and how I can find this. 2. A rental business charges \$12 per canoe and averages 36 rentals a day. For every 50-cent

85. ## Math

Which decimal value is equivalent to 7/11? _ __ _ A. 0.63 B. 0.63 C. 0.675 D. 0.7 "B" is what I chose.

86. ## chemistry

3Cl2 +6KOH->KClO3 +5KCl =3H2O write a conversion factor that could be used to convert between moles od potassium hydroxide and moles of potassium chlorate

87. ## Physics

A vector representing 170 N is oriented at 30 degrees with the horizontal. What is the magnitude of its horizontal component? Answer in units of N.

88. ## AP Physics

A jogger runs in a straight line with an average velocity of 7.7 m/s for 4.5 minutes, and then with an average velocity of 2.8 m/s for 2.8 minutes. What is her total displacement? Answer in units of m.

What was "Manifest Destiny"? a. the idea that Americans of European descent were superior to Native Americans b. the idea that woman were destined to attain political equality with men c. the idea that America was destined to expand to cover the entire

90. ## chemistry

The density of gold is 19.31g/cm3 and the density of platinum is 21.43 g/cm3. If equal masses of gold and platinum are transferred to equal volumes of water in separate graduated cylinders which graduated cylinder would have greatest volume change

91. ## Math ~ Check Answers ~

Which best names the quantity 1/2 in the linear equation shown? y = -2x + 1/2 a.) The y-intercept ******** b.) The slope c.) The dependent variable d.) The x-intercept Kevin plotted a linear equation on a graph with 18 as the y-intercept. Which of

92. ## Science ~CHECK MY WORK PLEASE~

Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He

93. ## Science ~CHECK MY WORK PLEASE~

Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical

94. ## Grammar ~CHECK MY WORK PLEASE~

THE STARS NEXT TO IT ARE MY ANSWERS!! Select the answer that correctly identifies the part of speech of the italicized word or words in each sentence below. The words are with all big letters. SUDDENLY, BEFORE, OUTSIDE 1) Everyone in the cafeteria was

95. ## Math

Triangle ABC has coordinates A(1,4); B(3, -2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis.

96. ## physics

A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.300 rev/s. What is its angular velocity after a 22.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest.

97. ## economics

what is the south african government providing to whom?

cot (pi/12)

99. ## Marketing

1. How should Cathay develop and market its global im-age without diminishing its local/regional identity as the Hongkong (and China) carrier? 2. Should cathay focus on China by attempting to develop it further or instead focus on the overall global