Questions Asked on
May 19, 2008

  1. trig

    sketch one cycle of y=-3 sin 0 i know you guys wouldnt be able to draw it for me on here, but is this able to do on a graphing calculator, or could u explain the steps needed to do this problem? thanks in advance

    asked by jerson
  2. chemistry-stoichiometry

    how many grams of chlorine can be liberated from the decomposition of 64.0g of AuCl3 by this reaction 2 AuCl3----> 2 Au + 3cl2

    asked by lori
  3. algebra

    The coffee counter charges $9.00 per pound for Kenyan French Roast coffee and $8.00 per pound for Sumatran coffee. How much of each type should be used to make a 20-lb blend that sells for $8.40 per pound? Answer: Kenyan-8 lb; Sumatran-12 lb. Can someone

    asked by C
  4. Math

    I need help in seeing if I solved these inequality problems correctly. 1. A store sells two models of computers. Because of the demand, the store stocks at least twice as many units of model A as of model B. The costs to the store for the two models are

    asked by Jamie
  5. Chem ? Help!

    What is the answer and how do I Calculate the quantity of energy required to change 3.00 mol of liquid water to steam at 100°C. The molar heat of vaporization of water is 40.6 kJ/mol.

    asked by Lisa
  6. Physics

    A sealed container of volume 0.10 m3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium. The distribution of speeds of helium atoms shows a peak at 1100 ms-1. Caluculate the temperature and pressure of the helium gas. (helium atom 4.0 amu)

    asked by Oli
  7. how to write a check

    this is my second time writing a check, and I know how, but How do i write $1,464.00 in words on a check. Is it "one thousand four hundred sixty four dollars" Is it hundred or hundreds? Do I need to say something about the zero cents?

    asked by jen
  8. calc

    oil is leaking from a pipeline on the surface of a lake and forms an oil slick whose volume increases at a constant rate of 2000 cubic centimeters per minute. The oil slick takes the form of a right circular cylinder with both its radius r and height

    asked by sam
  9. trig

    Find the exact value of cot 45°, if the expression is undefined write undefined.

    asked by jerson
  10. algebra

    What are some examples of real life situations where you might use polynomial division?

    asked by C
  11. Math

    1. Find y'(x) when xsecy - 3y sinx = 1 a) (3ycosx - sec y) / (xsec^2y - 3sinx) b) (3cosx - sec x) / (xsecytany - 3sinx) c) (3ycosx - sec y) / (xsecytany - 3sinx) d) (3ycosx - secytany) / xsec^2y - 3sinx) This is what I did: xsecy - 3y sinx = 1 => sec y + x

    asked by Donna
  12. Physics (please check!)

    A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Would the ball

    asked by BAdams
  13. World Literature

    When a character struggles with outside forces he has? a. conflict b. external conflict c.internal conflict d. suspense e. all of the above

    asked by Carolyn
  14. algerbra 2

    you deposit 10,000 dollars in an account that pays 4.25% interest compouned continuously. How long will it take for the account balance to reach $15,000? i have $15,000=$10,000e^(.0425)(t). is that right? if not please can i get a reasoning if it's wrong,

    asked by Miley
  15. Calc

    a partial moves along the x-axis so that its velocity at time t, for 0< = t = < 6, is given by a differentiable function v whose graph is shown above. The velocity is 0 at t=0, t=5, and the graph has horizontal tangents at t=4. the areas of the regions

    asked by sammy
  16. Civics

    (True or False) The duties of local government officials are usually outlined in a state approved charter.

    asked by CJ R.
  17. MATH

    I had to change this fraction to a percent: 1 1/5= 120% Is this correct? To get this answer I changed the fraction 1 1/5 to a decimal, 1.2, then I moved the decimal two places to the right, making it 120%. Please tell me if I have got these steps down.

    asked by LIFETIME
  18. algebra

    What are some examples of real life situations where you might use polynomial division?

    asked by C
  19. calculus

    consider the differential equation dy/dx= (y - 1)/ x squared where x not = 0 a) find the particular solution y= f(x) to the differential equation with the initial condition f(2)=0 (b)for the particular solution y = F(x) described in part (a) find lim F(x)

    asked by sammy
  20. a

    What are some examples of real life situations where you might use polynomial division?

    asked by C
  21. Need some info. please

    Everyone differs slightly in what they consider attractive or beautiful. Do you believe certain attributes are universally attractive? Do you believe one’s sense of beauty is intrinsic or learned? What influence do the media and one’s peers have on the

    asked by rose - Ms. Sue
  22. chemistry

    1. Calculate the volume of carbon dioxide at 273 K and 1.01 * 10^5 Pa which would be produced when 1.25g of calcium carbonate reacts completely with HCL. and 2. When 41.18 cm^3 of a solution of silver ions with concentration of .2040 mol dm^-3 is added to

    asked by ANn
  23. English Expression

    Using each card in Group A and Group B, let's play the "Making a Suitable Sentence" Game. John and she are the third person singular, so they take the third person singular present form. Look at the expressions in Group B. Look at the second card in the

    asked by John
  24. finance

    It’s been two months since you took a position as an assistant financial analyst at Caledonia Products. Although your boss has been pleased with your work, he is still a bit hesitant about unleashing you without supervision. Your next assignment involves

    asked by Amber
  25. Women's Issues

    I am writing a report for my current events class about women's issues. I am not allowed to use Wikipedia for my resources. Can someone direct me to some helpful websites or give some examples of women's issues besides inequality in the workforce between

    asked by Katherine
  26. maths(am i right??)

    Ms James buys x calculators and y folders to sell, she must buy at least 5 calculators,the folders she buys must be at least twice the number of calculators and if each calculator cost $20 and foldr $5 and she cant spend more than $300, write inequalities

    asked by cynthia
  27. Physics

    6) If a flea has a mass of 2.0x10^2 micrograms jumps vertically to a height of 65mm and 75% of the energy comes from elastic potential energy stored in the protein, determine the initial quantity of elastic potential energy. drwls said to use: (1/2)M g H =

    asked by Alex
  28. probability

    How do you calculate the probability of a sum with one fair die and one biased die? P(1)=1/3 P(2)=P(3)=P(4)=P(5)=P(6)

    asked by Anonymous
  29. keyboarding and word processing

    do anyone have the correct answer to exam 986131 for pennfoster key boarding and word processing.

    asked by mattie
  30. English Expression

    Let's write a thank-you card to a teacher. 1. Prepare a big drawing paper. 2. Using the expressions below, each of you writes a greeting to a teacher in English on a small card. 3. Each gathers a card and make a shape, and then paste it on a drawing paper

    asked by John
  31. trig

    Write the measure in radians. Express the answer in terms of ð -260°

    asked by jerson
  32. alg 2.

    solve. we can use a calculator on this part... 2e^-x+4=21. how do i do this problem. i know that you subtract 4, but what do you do after that?

    asked by Miley
  33. chemistry

    Which solution would increase the osmotic pressure of water the most? a) KBr b) NaCl c) MgCl2 d) glucose

    asked by Donna
  34. Physics

    3) a) Calculate the unstretched length of a spring, which has a Hooke's constant of 40N/m and is 56cm long when supporting a stationary 800g object. I did mag = kx (0.800)(9.81) = 40x x = 0.20m l-x = u 56-20 = u u = 36cm Is that right? b) The period with

    asked by Alex
  35. Econ

    How do you calculate the Herfindahl- Hirschmann Index ?

    asked by Tiffany
  36. US HISTORY

    What effect did racial violence have on President Kennedy's approach to civil rights?

    asked by Kathryn
  37. math

    a farmer must get a mouse, a cat and a block of cheese across the river. He will make three trips. He can not leave the cat and mouse together on either side and he can not leave the mouse and cheese together on either side. How will he get them across the

    asked by zach
  38. Alegebra 2

    Factor x^3+2x^2-36x-72

    asked by Courtney
  39. art history college level

    Is there anybody out there who really knows art history or anyone who is at least aware of some helpful art history resources out there? For comparison and contrast purposes, I need to know more about some individual French academic artists and their

    asked by Brandon
  40. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  41. GEOGRAPHY

    please could someone help, i need to find information about broughton chester airbus to write an essay about it.i need to write about what is made there how the parts are transported to different places how big the factory is what alterations have been

    asked by CHARLIE
  42. Physics

    What are differences and similarities of the electric charges (+ and -) and the magnetic forces (North and South)?

    asked by TP
  43. Intro to LAN

    I have an assignment. here is the criteria All key elements of the assignment are covered in a substantive way. · Select one organization from the company descriptions in Appendix G · Recommend how the company should back up and protect their network

    asked by James
  44. algebra

    Maria bicycles 5 km/h faster than Carlos . In the same time it takes Carlos to bicycle 30 km, Maria can bicycle 45 km. How fast does each bicyclist travel?

    asked by Kim
  45. Math please check answer

    please check my answer thanks What would be the amount of compound interest on $ 8,000 invested for one year at 6 %, compounded quarterly ? (need to show all of your work ) ok this is what I got $8,000 x 0.6 = $ 480 $ 480 / 4 = $120 $120 x 0.6 / 4 = $

    asked by Maria
  46. social studies

    What is the demand for self-rule and a strong feeling of one's loyalty to one's nation

    asked by vanessa
  47. about jiskha/ math

    I had a dumb question awhile ago I had submitted a question ( Ted bought four lawn chairs for $ 22 each a pinic table for $ 212 and an umbrella for $85) etc anyways I had wanted someone to check my answer which they did , however I lost my paper Is there

    asked by Anonymous
  48. Physics

    What is the smallest a flat mirror can be while still being able to see your full reflection? I need to show my work/explain. Can anyone help me?

    asked by Lindsay
  49. Math

    Find y'(x) when cos y - y^2 = 8 a) -siny - 2y b) - (1/sin y - 2y) c) 0 d) - (8/cos y - y) So if I implicitly differentiate: y'(x) = -sin(y) - 2y y' = 0 Am I right to say that there's nothing more you can do to this and pick C? y' = 0 / (-siny - 2y) So

    asked by Donna
  50. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  51. Math

    What is 12x8999? pluss 80000000 and subract 3 billion? Is that possible?

    asked by Elizabeth
  52. PYCHOLOGY

    IF A 50 YR OLD AND A 25 YR OLD WERE TOLD TO RECALL A LIST OF WORDS, WHAT DIFFERENCE IN BRAIN ACTIVITY WOULD EXPECT?

    asked by SANDY
  53. science

    soalar eclipses occor when- ? Thanks

    asked by Elizabeth
  54. science

    calculate the mass in kg of an object that weighs 1225 n on earth

    asked by Corey
  55. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  56. calc

    let f be function given by f(x)= Ln(x)/x for all x> 0. the dervative of f is given by f'(x)= (1 - Ln(x))/x squared. a) write equation for the line tangent to the graph of f at x=e squared b) Find the x-coordinate of the critical point of f. Determine

    asked by sarah
  57. Language Arts

    What is the saddest narrative you know? If you could pleaser copy-paste it here so i can see it. thanks

    asked by Kinza
  58. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  59. space

    what did edwin hubble knowtice about the direction of travelof distant galaxies that led him to preopose that the universe is expanding?

    asked by tim
  60. maths(did i do this right)

    write 3x*2+8x-25 in the form a(x+h)*2+k where a,h and k are real numbers formulae for h=b/2a formulae for k=4ac-b^2/4a h=8/2*3=1.33 4 (3)+ (-25)-8*2/4*3=-152/12=12.6 3(x-12.6)^2=1.33/3 x-12.6=+-0.67 x=0.67+3.55=4.22 x=-0.67+3.55=2.88

    asked by britney
  61. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  62. math

    complete the table that shows the length of the chain formed when rings are liked in a staright line 1)number of rings 1 length of chain 16mm 2)number of rings 2 length of chain 30m 3)number of rings 3 length of chain 44m 4)number of rings 6 length of

    asked by marcus
  63. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  64. maths

    find the inverse of matirx m= 2 1 -1 3 is it 3 -1 1 2 and how dod i find the value of and a y for which ma is x and y

    asked by veda
  65. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  66. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  67. Algebra

    When simplifying algebraic fractions, do you simplify things attached by addition/subtraction? EX. 4d-1 _____ 6d Would you be able to further simplify it to: 2d-1 ________ 3d

    asked by Zerina
  68. Economics

    Correct me if I am wrong, if a country's currency appreciates, foreign goods are relatively cheaper than domestic goods, so imports increases and export decreases. And if depreciates, the opposite is true?

    asked by remy
  69. finding directrix. Am I right?

    the equation of the parabola is (y-5)^2=5(x+8). Now I asked this earlier but that thread is farther down so no one sees it. He said the directrix is -9.25 but I think it is -1.25. Am I right?

    asked by Tyler
  70. AED

    classify the objective "to know what the term equivalent fraction means into one of the cells of the taxonomy

    asked by dawn
  71. math

    (0.2x15) : (0.8x7.5) ::_________:(0.25x56)

    asked by beth
  72. history

    Plebeians could move into the upper class by winning in the Olympics. True or false

    asked by Marie
  73. INB

    Explain why you think international strategy is important. What is the difference between domestic and international strategic planning?

    asked by deshaun
  74. Social Studies

    How do the rivers/seas and deserts of China impact it's culture over time? I need to write a paper so if i could get a lot of info on this it wud be great help!

    asked by Dee
  75. Social Studies

    I need to know about fashion and style during the Heian period. Also, please revise this narrative about a girl during the Heian period. ONly edit if you know what youre doing. this is my final so no fooling please!! thanks so much (due 2morrow) HELP!!!

    asked by Kinza
  76. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  77. alg 2.

    how would i condense this... 3lnxy-2ln2y. whenever i condense i get ln(xy^3/2y2). but my teacher has ln(x^3y/4). can someone please show me how to get that answer thanks!

    asked by Miley
  78. ctu

    Carrie is surfing the Virtual Campus (VC) one night after work. She finds the Academics, Library, Learning Center, and Virtual Commons portals but is unsure how to navigate them. Carrie sees over a dozen labs and wonders how to enroll for the English and

    asked by kimn
  79. Algebra 2

    I have a question and I can not figure it out. Any answers to the following along with any explanation would be great! Here is the equation: x=.2y^2-2y-3 Now I know that is an equation for a parabola. Now, I need the following: Equation in standard form

    asked by Tyler
  80. french

    Can someone check this over? Nous sommes allées au club. L'Alibi était un club de danse et nous avons écouté une variété de musique. Nous avons dansé à la musique salsa, le rock, et le hip-hop. Nous avons dansé pour deux heures! Le prix de

    asked by maggie
  81. Math

    how do i find the height of a triangle the base is 18 inches, the angled side is 82 inches and it is a right triangle

    asked by LT
  82. Social Studies

    Did art have a religious significance to the Romans because they believed that the representations of people actually became receptacles of their souls?

    asked by Bob
  83. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  84. French

    What is the best way to say this? When one has a flat tire, it is necessary to put air in it. I have to translate this, and my best guess is Quand on a pneu à plat , il faut mettre de l'air dans ça That doesn't really look right me at the end. Could

    asked by Nathalie
  85. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  86. science

    What elememts compose 95% of the body?

    asked by Cilla
  87. physical science

    What is a compound that has water chemically attached to its ions?

    asked by ro
  88. com 140

    how will you apply the knowledge you have gain about effective business communication in your current or future job and college courses?

    asked by lisa
  89. math

    I have to find slope of the co-ordinates (8,116) and (18,268) i got 76/5 but this doesn't seem right. Isn't slope supposed to be a whole number or simple fraction?

    asked by Anonymous
  90. us history

    Describe what Kennedy hoped to accomlish with the New Frontier other than landing on the moon.

    asked by Kimberly
  91. Hello!

    I love cyber chickens!!! Do you???

    asked by Erin
  92. english

    how doyou find out abut prefixes it is so anoyying when i have to think twice and try to rember what my techer says at school in class and well can any one help me here thanks a million

    asked by permicouas
  93. Business

    Foreign Investment and Internation Investment theory in plain english so I can understand it.

    asked by Kimberly
  94. algebra

    How do I solve this???? Hat size 7 3/8 ??? head circum ( to nearest 1/5 23 1/5 ??? head circum to nearest cent.) 59 58

    asked by Kim
  95. school email problem... please help

    What does "Cc" stand for in regard to emailing? Thanks

    asked by Anonymous
  96. nystce exam help with downloading

    On the Nystce exam site-- the first site that comes up when you google "nystce": Can someone please download and repost the * Assessment of Teaching Assistant Skills (ATAS) (095) because my computer won't let me. Thanks very much.

    asked by Anonymous
  97. Elglish

    What are all of the sigular and plural pronouns?

    asked by kelsey
  98. Supervision and Leadership

    I need someone ele's thoughts on this scenario Questions 1and2 at the end. No Extra Effort You are the supervisor of nurses in the pediatrics section of a 700-bed hospital in a metropolitan area. You have been in your job for six months, having moved from

    asked by Ree
  99. history

    What was probably the most important commodity in ancient Rome?

    asked by Marie
  100. social studies

    How were Roman steam baths warmed?

    asked by Eloise
  101. social studies

    Why did art have a religious significance to the Romans?

    asked by Eloise
  102. Social Studies

    How were Roman chariot races like horse races today?

    asked by Bob
  103. social studies

    how did events in the west help the Patriots' cause?

    asked by tatiana
  104. randomness health

    random much but is it possible at all for a human to produce asexually. like EVVER with a sperm? please not in science language: just english :P thanks

    asked by Kinza
  105. alg 2.

    solve. lnx=4. how do i do this problem...

    asked by Miley
  106. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  107. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  108. math

    can you show me how to solve this? 4a - 7 = 4(a-2) +1

    asked by Tracy
  109. Social Studies

    Which Songhai city was the center of learning,trade and religion

    asked by Julia
  110. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  111. literary

    what is genre?

    asked by Anonymous
  112. Chemistry

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  113. space

    how long do scientists believe the universe has been expanding?

    asked by joe
  114. Science

    Effect of Food habits on GIT problems of Adolescence

    asked by Tom
  115. space

    what force holds the billions of stars in a galaxt together?

    asked by tim
  116. maths (sets)

    32 candidates took examinations at centre. 11 took french,9 took spanish and x took both,18 took neither subject 1.Write an expression in x for the number of candidates in the universal set 2.Calculate the value of x

    asked by keisha
  117. government

    WHAT IS THE LIST OF CASES TO BE HEARD BY A COURT IS CALLED

    asked by MIGUEL
  118. French

    Can someone please review and correct this for me, thank you so, so ,so much!!!! -Whoa, c'est quoi ce bruit? Mr. Terry interroger, une expression confus sur son visage. -C'est probablement seulement l'alarme qui est accidentellement sonné, assurée Mme

    asked by MayCatia
  119. DT WOODWORK

    what is the definition of 1/ portable drill 2/ pillar drill 3/countersink 4/pilot hole thanks for your help

    asked by ANON
  120. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  121. phoenix

    water resource plan

    asked by maria
  122. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already balanced it] A. If 100 g

    asked by Mandy
  123. dt

    definition for portable drill.

    asked by anon