Questions Asked on
June 17, 2007

  1. Calculus

    Find the exact coordinates of the centroid. y = sqrt[x], y = 0, x = 9. -------------- Is this basically 1/4 of an oval/ellipse? If so then the area would be: pi*9*3, correct? So the X coordinate would equal: 1/Area * Integral from 0 to 9 of (x*f(x))*dx

    asked by COFFEE
  2. Anatomy and physiology

    Which of the following is not a phase of hemostasis? Vascular spasm Fibrinolysis Platelet plug formation Coagulation This site should give you that information. (Broken Link Removed)

    asked by Krupa patel
  3. sociolinguistics

    does anyone know what a superposed language is? To superpose is to place something OVER something else. In this case, if you are talking about a language, you would be taking a new language and making it the language of common usage. Example, if you are an

    asked by tea
  4. Calculus

    1. Chris makes an open-topped box from a 30-cm by 30-cm piece of cardboard by cutting out equal squares from the corners and folding up the flaps to make the sides. What are the dimensions of each square to the nearest hundredth of a centimetre, so that

    asked by Icy
  5. Calculus

    The hemispherical tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. ---------- What is shown is just the tank (a hemisphere) with a radius of 5 ft. ---------- First I calculated the

    asked by COFFEE
  6. algebra

    When i have a matrix 4 X 4 and i have to multiply it by a 4 X 3 i know that the product size has to be a 4x 3 so do i do a row times column or how ? It's easiest to learn using the notations for tensors. For any matrix X denote the entry in the i-th row

    asked by student
  7. Philosophy

    Can someone tell me the misconceptions of the universe purpose? I have been looking for different opions but can not find any if you can point me to the right direction or give some of your ideas. thanks Thank you for using the Jiskha Homework Help Forum.

    asked by Danny
  8. algebra

    These are very easy to set up with a "chart" ---------Distance-----Rate---Time (D=RxT) slow way --6x----------x-------6 fast way - 5(x+7)-----x+7------5 so 6x = 5(x+7) 6x=5x+35+ x=35 The speed on the slower trip was 35 mph, and on the return trip 42 mph A

    asked by Reiny
  9. Philosophy

    -- How much wood could a wood chuck chuck, if a wood chuck could chuck wood? -- How much will could Will Smith smith, if Will Smith could smith wills? Thank you for using the Jiskha Homework Help Forum although I seriously suspect this is NOT a homework

    asked by Miguel
  10. math

    Paul Can Type 60 Words Per Minute And Jennifer Can Type 80 Words Per Minute. How Does Pauls Typing Speed Compare To Jennifers? Maybe a ratio would work. 60/80 = x/100 Once you figure out what x is, state it as a percent. Paul can type x% as fast as

    asked by sherri
  11. just for fun

    Select an organization that you have worked for or one that you are familiar with and locate the goals the organization has set. Many times this information can be found on the company's website. Search the Library as well as the internet and research goal

    asked by joni
  12. math, finite mathematics

    My question is that i need help for this problem understanding how they came about to the answer it is an odd problem so: The answer they have is: 18 cakes for the first one. 8 cakes for the second one. 2 cake for the third one. Here is the original

    asked by student
  13. Chemistry

    A galvanic cell is made with aluminum and zinc electrodes. (For Ag^+(aq)+(e^-)--->Ag(s), E=0.80 V and for Cu^2+(aq)+(2e^-)--->Cu(aq), E=0.34 V) Write the standard cell notation for this cell. Wouldn't it be silly to use the potentials for copper and silver

    asked by Aubrey
  14. math,finite mathematics

    this is what i have so far for the following problem but i don't know what to do next: Use the simplex method to solve the linear programming problem minimize W = 4 y1 + 2y2 subject to: 3y1+2y2>=60 4y1+y2>=40 y1>=0,y2>=0 so this is how i started it: i did

    asked by student
  15. Math

    Tiffany can run 12 miles in the same time it takes her to bicycle 72 miles. If her bicycling rate is 20mi/hr faster than her running rate, find each rate. Let X = running rate, so X +20 = cycling rate. Since rate = miles/time, then time = miles/rate. Since

    asked by Audrey
  16. Math

    Find the axis of symmetry y = -x^2 + 3x - 3 22

    asked by Audrey
  17. sociolinguistics-one more question

    i forgot to ask one more thing..what is a regional dialect?i can't find anything about that A regional dialect is the use of certain words and accents peculiar to a given region. Y'all, for instance, marks a southern U.S. speaker. The pronunciation of some

    asked by tea
  18. thermo

    For the following problem... I found the second pressure by solving P1V1/T1 = P2V2/T2. The Volumes is const so those cancel and then i am able to find the P2. From there i looked at the 1st law and came up with delt U = Qin which = mCvdelta T but that is

    asked by jody
  19. Chemistry

    Using the change in oxidation number method, balance the redox reaction shown below. (NO2^2)+ (MnO4^-)---> (NO3^-)+ Mn^2+ Divide into half reactions. I will show you how to do MnO4^- and you do the other one. MnO4^- ==> Mn^+2 Step 2. Determine the

    asked by Aubrey
  20. English

    When a teacher wants you to do a reserch paper on the literary reflections of something, what does that mean? I am not certain what the teacher has in mind. When one looks into a mirror, one sees not the actual object, but rather an image. The image is

    asked by Monique
  21. Business

    Where can i find like an Outline on how to draw up an business prosopal?!hc_how_to_write_a_proposal.cfm?

    asked by Bryan
  22. Chemistry

    I was asked to consider the solubility for hydrated calcium sulfate in HCl. The principal acid my proffesor had posted for the solution was [ CaSO4(hyrdrated) + HCl H30^+ + Ca^2+ + SO4^2- ]. I guess what I'm asking is what happened to the Cl^- and why

    asked by john peterson
  23. Economics

    Choose an argument in favor of protectionism. Are there any weaknesses in this argument? Be specific. do some research, then take a shot. what are some arguments in favor of protectionism? I have got the first 4 I think but can't figure out the last 2 For

    asked by Joe
  24. Math

    I need to find the area of a shaded part. it is a square with a circle the measurements that I have are pi = 3.14 and 15 ft by 15 ft. I know to find the area of the square I take base x height but cannot figure out correct formula for subtracting the

    asked by Sam