# Amy~

Popular questions and responses by Amy~
1. ## Chemistry

What would be the steps to solving this problem? The aluminum sulfate hydrate [Al2(SO4)3 (times) xH2O] contains 8.20 % Al by mass. Calculate x, that is , the number of water molecules associated with each Al2(SO4)3 unit.

2. ## Chemistry Balancing

K3PO4(aq) + 3Sr(NO3)2 ==> Sr3(PO4)2 + K2(NO3) the reactant was given. I can't seem to balance this. whenever everything is even either the 3Sr(NO3)2 or K2(NO3) is not balanced. Also, the 3Sr in 3Sr(NO3)2 was already there.

3. ## Chemistry

The mass % of H in methane (CH4) is ? How would i solve this?

4. ## Chemistry Check

Which one of the following substances is the product of this combination reaction? Al(s) + I2(s) => ______ For this it would be AlI3 ?

5. ## Chemistry

The steps to getting the answer. A certain metal oxide has the formula MO where M denotes the metal. A 39.46g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules. At the end, 31.70g of the metal is

6. ## Chemistry

A mixture of methane (CH4) and ethane (C2H6) of mass 13.43g is completely burned in oxygen. If the total mass of CO2 and H2O produced is 64.84 g, calculate the fraction of CH4 in the mixture. CH4 + C2H6 arrow CO2 + H2O 13.43g 64.84g Would I do

7. ## Math Word Problem

Cashews sell for \$4.00 per pound and peanuts for \$1.50 per pound. The peanuts didn't sell well, so in order to sell 60 lbs of peanuts the manager decided to mix 60 lbs of peanuts w/ cashews and sell the mixture for \$2.50 per pound. How many lbs cashews

8. ## Chemistry

How to solve this: One isotope of a metallic element has mass # of 65 and 35 neutrons in nucleus. The cation derived from the isotope has 28 electrons. Write the symbol for this cation. Would the symbol be Cu? because Atomic # = protons = electrons and

9. ## Math Word Problem

In an NFL football game, the Bears scored a total of 41 poionts, including one safety (2 points) and two field goals (3 points each). After scoring a touchdown (6 points), a team is given the chance to score 1 or 2 extra points. The Bears, in trying to

10. ## Chemistry

Lysine, an essential amino acid in the human body, contains C,H,O, and N. In one experiment, the complete combustion of 2.175g of lysine gave 3.94g CO2 and 1.89g H2O. In a separate experiment, 1.873 g of lysine gave 0.436 g NH3. (a) Calculate the empirical

11. ## Chemistry

How would I solve this: The atomic mass of 6/3Li and 7/3Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural abundances of these 2 isotopes. The average atomic mass of Li is 6.941. All I know is how to get the atomic mass and not the

12. ## Chemistry

Record the amount of heat needed to change phases for water-ice to steam using graphical analysis. Is there a one accurate amount of heat needed to change phases, I thought it varied depending the problem... Would the question be asking for the heat needed

13. ## Math

which mountains peaks can be seen from Oahu. Island Distance(Mi) Mountain Height(ft) Molokai - 40 - Kamakou - 4,961 A) Radius of earth= 3960 mi. Determine angle formed at the center of the earth. B) Determine length of the hypotenuse. Could someone go

14. ## Math

A real estate agent to sell a large apartment complex according to the following commission schedule: \$45,000 plus 25% of the selling price in excess of \$900,000. Assuming that the complex will sell at some price between \$900,000 and \$1,100,000, inclusive,

15. ## Math

In a game, the Bulls score a total of 103 points and made three times as many field goals (2 points each) as free throws (1 point each). They also made eleven 3 points. How many goals did they have? 103=3(2)+ 1 + 11(3) would this equation be right?

16. ## Math

I have to write < , >, or = for the ? sqrt 2 ? 1.41 sqrt 2 = 1.41421356237... Would it be sqrt 2 > 1.41

17. ## Chemistry.

In which of these compounds is the oxidation state of CI the highest? a) HCIO2 e) HCIO4 Answer is e Is there a formula to solve this ?

18. ## Chemistry

In water conservation, chemists spread a thin film of certain inert material over the surface of water to cut down the rate of evaporation of water in reservoirs. Franklin found that 0.10 mL of oil could spread over the surface of water of about 49 m

19. ## History

What is the treaty of Paris that the US signed with Spain? Please type an answer and not a website. Thanks

20. ## Math

This is another application that I didn't understand A blimp, suspended in the air at a height of 500 ft, lies directly over a line from Soldier Field to the Planetarium on Lake Michigan. If the angle of depression from the blimp to the stadium is 32

21. ## Math

At 10 am on April 26, 1998, a building 300 feet high casts a shadow 50 feet long. What is the angle of elevation of the Sun

22. ## Precalc

(2^(x))(5)=10^(x) steps too please how to solve

23. ## Precalc

chande into a single logarithm (1/2)ln(x^(2)+1)-4ln(1/2)-((1/2)[ln(x-4)+lnx] ) steps to please

24. ## Precalc

how to write each expression into a single logarithm. ln(x-1/x) + ln(x/x+1) - ln((x^(2)-1)) the answer is: -2ln(x+1) steps please i tried solving this but ended up getting this long expression

25. ## Precalc

how to write each expression into a single logarithm. 3logx^(2) + (1/2)logã(x) the answer is: (25/4)logx steps please

26. ## Debug=true

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: 1. Add a "Debug=true" directive at the top of the file that generated the

27. ## English

In the Minister's Black Veil by Nathaniel Hawthrone. What reasons does Hooper give for not wanting to remove his veil? I came up with one reason: that there is a Black Veil on everyone But what will the other reasons be? "Why do you tremble at me alone?"

28. ## Math Graphing

x^3 < 3x^2 would become x(x^2-3x) then how would I graph this?

29. ## History

The U.S. Treasury department can also be known as the government? like in a more broader sense.

30. ## Math

The final exam will count as two tests. Brooke has test scores of 80, 83, 71,61 and 95. What score does Brooke need on the final in order to have an 80? I thought 80+83+71+61+95 = 390 / 5 = 78 then I don't know what to do next. Although I did do 78 +2x =

31. ## Math

If Sandy usually earns \$88 plus 11% sales each week. What if she earns \$154 one week. What is the % sales she earned that week when she earned \$154? Would the answer be 600?

32. ## Math Word Problem

a new blend of coffee will cost \$3.90 per pound by mixing 2 coffees that sell for \$2.75 and \$5 per pound. what amounts of each coffee should be blended to obtain the desired mixture? (the total weight of the desired blend is 100 lbs) How would I solve

33. ## Chemistry: Solubility ?

There are solubility rules and for soluble compounds some have exceptions next to them. Such as Halides are soluble Exception: Ag, Hg, Pb What does it mean by exception? For Halides would it be, that if the compound was AgCI it wouldn't be soluble?

34. ## Chemistry

There was this problem on a test that I took recently. But, I never learned how to solve this. The problem was: it gave the mass of a certain compound and stated that it had 92% carbon. then it asked for the theortical yield of Carbon.

35. ## Chemistry

The average mass of a solid copper penny is 2.63 g . What is the mass of one mole of pennies? How would I solve this?

36. ## Chemistry

For Peroxyacyl nitrate (PAN) A compound of C,H,N,O Determine the empirical formula from the percent composition by mass: 19.8% C, 2.50% H, 11.6% N What is its molecular formula given that its molar mass is about 120g?

37. ## US History II

For Alexander Hamilton v. Thomas Jefferson was the conflict about the Presidency, and Hamilton's and Jefferson's plans? Like Loose v. Strict Constitution?

38. ## Computer

Does anyone know of a website where I could ask computer problems for free? I just tried asking on this one website, but it wanted me to pay... Thanks

39. ## Computer Question

Does anyone know where I can remove the memory card? from a computer? I tried looking it up but all I get is those memory cards for cameras... I'm not sure what it is, except that it contains computer memory. Also, I remember someone saying that I need to

40. ## History

During March 10, 1935 did Hitler just test the strength of the Treaty of Versailles. Then during March 16, 1935 does Hitler introduce a compulsory military service. Then does in renounce the Treaty of Versailles on March 16 DOES this cause war...? During

41. ## Calculator Help

Is there a difference between TI-89 Titanium calculator and TI-83 calculator? Because I'm taking a final exam and my teacher will only allow us to use a TI-83 calculator and I've never used it... like for putting in the parentheses with the log when

42. ## English

is this sentence correct: He was deprived of his money.

43. ## Math

If the radius of a circle is 3960 the angle is 1.59 the arc length is 110 how would I find the hypotenuse? I think it is 3960/cos1.59 but I know that you just don't automatically know that wouldn't it start out as cos1.59 = A/H (adjacent/ Hypotenuse) Could

44. ## Math

Given info: arc length = 65 m formula for arc length: s=rø s = 2pi r radius of circle: 2300 m so to find the angle would I put in 2pi(2300)= rounded to 14451 Then would I multiply: 65(360/14451) if that is right, why would I divide by 360 and multiply by

45. ## Math

I tried to solve this but can't seem to find a procedure to solve this: To measure the height of Lincoln's caricature on Mt. Rushmore, two sightings 800 feet from the base of the mountain are of Lincoln's face is 32 degrees and the angle of elevation to

46. ## Math

tan 46.27 = x / (y+100) could someone change this to y = ? I tried it but got stuck after the first step of moving y+100 over to tan... steps too please

47. ## SAT

For the SAT online course, when I was going o buy it, they asked for shipping information, so I'm confused... are they going to send me a book on the online course where afterwards I can use the online course...?

Inverse Trigonometric Functions please explain this to me in mathematical steps please how to solve sin^(-1) (-1/2) this equals - pi/6 i know that sin^(-1) domain and range switch from original sin but i don't know how to apply that... i need an

49. ## Documents

What does it mean by Enclosed Documents? documents that I am going to send or that are required

50. ## History

What are 3 factors that made Congress pass the Immigration Act of 1924? - racism can't think of the other two.

51. ## Spanish

would this be right: ir a tuvimos

52. ## Spanish

For the stem-changing verbs in the present tense I wouldn't have to do anything to those verbs in the preterite tense except changing the endings?

53. ## Spanish

If "te (verb)" is in the present tense how would I change this to the preterite tense ? Would I leave it as " te (verb)" and only change the verb to a preterite would this be the same for "lo (verb)"?

54. ## Algebra

How to solve this x(1+x)=2 Find all the real solutions I can't remember how to solve this... the answers are -2, 1 I think...

55. ## English

I can't think of a word to describe the reaction from the townspeople? Their gossiping about the Rev... Suprised... I'm stuck -A Rev comes to town and the next day the whole town talks about the Rev

56. ## Math Help !

For this x^(4) < x becomes x^(4) - x < 0 becomes x(x^(3)-1)

57. ## Math

I don't get when you use "or" or "and" in inequalities. Like for this quadratic inequality: x^(2) +x -12 > 0 becomes x < -4 x > 3 why is the answer {x|x3} and not {x|3

58. ## English

I don't get what is ironic about this phrase from The Minister's Black Veil: "How strange that a simple black veil such as any woman might wear on her bonnet, should become such a terrible thing on Mr. Hooper's face" ? Is it because their all hiding behing

59. ## Re: Math

The only inequalities where I have to check the values between the points are polynomial and rational inequalities, right? And not any other type of inequalites By Checking I mean to know which way to shade on a graph Just making sure

60. ## Math

For this inequality 3x^(2) - 2x -1 > or equal 0 I get x=1 , x=-1/3 would the solution set become {x|1 < x < -1/3} I wasn't sure about the sign, if it should be greater than or equal to .

61. ## Math Check

The only inequalities where I have to check the values between the points are polynomial and rational inequalities, right? And not any other type of inequalites By Checking I mean to know which way to shade on a graph Just making sure

62. ## Health: Sodium

Having a lot of sodium in a chewy bar is bad but what about having 0.125g sodium is this also bad?

63. ## Spanish Check

is this right? No es practica mirar television son doce horas por dia. Means: It's not practical to watch television twelve hours a day. Also it "mis padres" right?

64. ## Math

How to solve this (2x+5)/(x+1) > (x+1)/(x-1) and graph? I tried this and got (x+3)(x-2) and got -32 which isn't right the right answer is x

65. ## Precalc

How to solve this inequality and graph? (2x+5)/(x+1) > (x+1)/(x-1) would I first get rid of x-1 and divide x+1 over to get (2x+5)(x-1)/(x+1)(x+1) > 0 if so, then who would I graph this?

66. ## Math

% of Paupers Native: 51.6 Foreign: 39.3 % of Population Native: 74.5 Foreign: 13.4 How much higher was the proportion of paupers in the foreign? How to get the answer?

67. ## English

For the Richard Cory poem: 1) What is the denotation of "crown" in this use? "sole to crown" -- Would it be that they thought him to be a king?

68. ## Math

How to solve this: ((x-3)(x+2))/((x-1)) < 0 I don't understand since theres x-1 in the denominator

69. ## Math: Inequalities

for this inequality: (x-1)(x-2)(x-3)

70. ## Math: Inequalities

How would I solve this inequality and graph? (x+2)((x^(2)-x+1)) > 0 I got x > -2 and x^(2)-x+1 > 0 How would I graph x^(2)-x+1 > 0 because I can't factor it.

71. ## History

Could someone explain what social, economic, and political issues are? Social- would be among the people? Economic- Political- issues that have to do w/ gov?

72. ## English: Quotes

What if there's a quote inside a quote would I use this " ...'...'" and also what if I wanted to add something in my own words in between the quote would I end the quote then write my thought and then start a new quote OR would I use [...] in between the

73. ## History

When US entered WWI, what century would that be? 20th century?

74. ## US History

Could Patriotism and propaganda posters be considered two different effects of US in WWI? At first I thought sure, but than the posters did cause patriotism so...

75. ## US History: WWI

Why would this poster "Joan of Arc Saved France: Women of America, Save Your Country/Buy War Savings Stamps," if a propaganda poster? I don't understand. It's not misleading information.

76. ## English: Puritans

The question is: Why could Winthrop's ideal not be achieved? The paragraph where I have to find the answer: Winthrop describes an ideal society, which, if the Puritans had been able to achieve it, would have been a reasonable facsimile of paradise on

77. ## Math

Going into the final exam which will count as two-thirds of the final grade, Mike has test scores of 86,80,84,and 90. What score does he need on the final to earn an average score of 80? Is this right: (86+80+84+90)/4 = 80 2/3x(85)= 80 or

78. ## Math

Perimeter is 60 ft. Find length and width if length is 8 ft longer than the width. Would it be 60=(8+l)+w I don't know where to put the 8 But there's two variables how would I find both l and w

79. ## English

I'm confused about the meaning of this sentence: The typical family is three or four children; the latter among the 8 to 12 children that will be born into the family during the lives of the parents. So I get confused where it says "the latter" Does this

80. ## US History

I don't understand what the difference was between the Lodge reservation and the Hitchcock reservation. Both reservations seem to be similar. I have to find a difference.

81. ## Spanish: translation

I'm not sure how I should translate the english sentences/questions into spanish: 1) What did they bring? - Que lo trajeron? 2) What did she say? - Que se(or te) dijo? 3) Did you read the newspaper? - Tu leiste el periodico? I'm not sure if they're right.

82. ## Spanish

For this what am I supposed to do? Traduzca Vd. al espanol las expresiones en ingles. 1. Nosotros walked por las calles de la ciudad. Do I just change the english verb to spanish ? OR do I translate the whole sentence into english?

83. ## Spanish

For this question: Hizo Vd. el trabajo para hoy? my answer: Si, hizo el trabajo para hoy. Is the answer written correctly? At first I thought hice but the question doesn't use hiciste so...

84. ## Spanish

For the verb componer in the present tu form is Compone. But in the preterito it's compuso. Is the ending -puso because the verb as poner in it which is irregular? Also, would this be the case for all verbs that have endings that are irregular?

85. ## Math Word Problem

2) After 2 years, Betsy finds she now will require \$7,000 per year. The remaining info is the same. How should the money be reinvested? Same info: 1) Betsy requires \$6000 per year in extra income. She has \$50,000 to invest and can invest in bonds paying

86. ## Spanish

How would I say: He is not tall or short? No, El es alto o bajo?

87. ## Spanish

How would I write: I have known her for 5 years? Hace conozco cinco anos?

88. ## Chemistry: Compound

1) ZnSO4 would it be Zn(SO4) does the polyatomic ion always have to have ( ) ? 2) Is Ba(SO4) right? since Ba is 2+ and SO4 is 2- right? 3) In a net ionic equation for BaCI2 would it become Ba ^(2+) + 2CI or Ba ^(2+) + CI2 ?

89. ## Math: Word Problem

A ball is thrown upward from the top of a building which is 96ft tall w/ Initial velocity of 80 ft per sec. Distance s(ft) of ball from the ground after t sec is s=96+80t-16t^(2) 1) how many sec. will the ball pass the top of the building when it is coming

90. ## Algebra

(8w+5)/(10w-7) = (4w-3)/(5w+7) How would I solve this?

91. ## Algebra

Isn't there a way to solve this (x+7)(x-1)= (x+1)(x+1) like, making both sides have the same denominator ?

92. ## Geometry

How would I find the missing side of an obtuse triangle? Using the pythagorean theorem ?

93. ## Math

Which major should Derrick pick based on the starting salary? Business: Mean: \$39,000 Median: \$30,000 Range: \$20,000 Engineering: Mean: \$35,000 Median: \$34,000 Range: \$12,000 Could someone explain why it would be a certain major? I don't know: I thought

94. ## Math Geometry

there are 2 pentagons the small pentagon has a side that is 3cm while the side on the other larger pentagon is 8cm. the small pentagon has a side x cm while the same side on the larger pentagon is 5cm. would i set up a proportion 3/x = 8/5

95. ## Math

x = 3 -2x^(2) / (1/3)^(-x) how to solve? would I multiply 3(-2) than square? Also, when I move (1/3)^(-3) to the numerator would it become (3)^3

96. ## Math

triangle PQR is translated 3 units ot the right and reflected over the line y=-1. The result is triangle P'Q'R'. Which is NOT true? 1) PQ = P'Q' 2)PQ/RQ = P'Q'/R'Q' 3)PQ + QR greater than or equal to R'P' 4)m angle P + m angle Q is greater than or equal to

97. ## Math

there is \$175,000 to award. If the money is awarded to 4 students in a ratio of 1 to 2 to 3 to 4, how much will the largest award be? How would I solve this ?

98. ## Math: Geometry/Algebra?

A construction company needs to build thirty trusses for the roof of a house. The truss is 20 ft long on the top two sides. What is the bottom length of the truss? the options for this answer were: a)30ft b)40ft c)50ft d)60ft When I solved this, I got 28.3

99. ## Math

find the value of line x - y line if x = 2 , y = -3 I got 5