urgently

  1. W

    nCr / nPr Problems... Need help urgently

    Please help me with this guys. I'm really struggling in this homework and it is essential to get this extra credit to pass the class. :( Please help... thanks... <3 1. In a poker (a game using the 52-card deck), a flush is a five-card hand where all the cards are the same suit. If there are...
  2. K

    Need Books urgently

    Dear members I need three books about differential Equations. 1) Differential equations with initial and boundary value problem by Dennis G Zill 2) Analytical Solution of PDEs by Sankara Rao 3) Elementary applications of differential equations by Richard Habarmas
  3. R

    C++ programming. i urgently need help in this.plz help me!

    Write a C++ program that uses the following function that computes xn.
  4. H

    Microeconomics - Utility Functions - interesting question - need help urgently

    Suppose price of meat (x) is $2 a pound, price of bread is $1 per pound and the consumer, who has a current income of $100 currently consumes 40 pounds of meat and 20 pounds of bread. If price of meat goes down to $1 per pound, and the consumer's income goes down to $60, is he better off or...
  5. J

    CALC 3 Need help urgently!

    Please open the pdf attached I am having extreme difficulty with #2 and #4. Its due tomorrow morning anyone that can show a step by step process would really be saving my life!
  6. R

    Urgently need a book

    Dear Sir I urgently require the book " R.D SHARMA MATHEMATICS FOR IX " to get reference to many questions . I have my final exam 3 days after . So please say me any link to get this book online .If not " R.D SHARMA MATHEMATICS FOR IX " at least " FRANK SECONDARY MATHEMATICS" please . I will...
  7. R

    Urgently need a book

    Dear Sir I urgently require the book " R.D SHARMA MATHEMATICS FOR IX " to get reference to many questions . I have my final exam 3 days after . So please say me any link to get this book online .If not " R.D SHARMA MATHEMATICS FOR IX " at least " FRANK SECONDARY MATHEMATICS" please . I will...
  8. P

    Urgently need physics/chemistry research project ideas

    Hey everyone. I understand that this isn't the best way to make a first post, particularly on mathematics forums. I'll do my initiatory lurking later (yes procrastination). Speaking of procrastination... As the title implies (like it should - I'm off to a good start), I have to make a...
  9. S

    [SOLVED] Proof by induction help needed (urgently)

    This is question 4 on June 2008 Further Pure 1 paper OCR (downloadable for OCR website) OCR > Qualifications > By type > AS/A Level GCE (current) > Mathematics > Mathematics > All documents The question goes: The Matrix A is given by A = 3, 1, 0, 1...
  10. J

    4 questions that I need urgently!!

    Question 1 A student found that the cost of fixed line phones calls to one location from her home followed a linear model. The cost of a 10 minute call is $1.50 while the cost of a 20 minute call was $2.80. a) Graph on the number plane the cost of a call ($) verses the time taken. State and...
  11. N

    Identitiy help urgently needed

    Hi , I am having problems proving the identity tan^2x-sin^2x=tan^2xsin^2x Heres what I have done so far [tex] sin^2x - sin^2x(cos^2x) cos^2x
  12. I

    Urgently need help with chemestry!

    Through special sources, I learned that for my practical test tomorrow, my chemical is Br I2 F (which i need to build using VESPR theory). Its hard enough trying to get the lewis diagram (i don't know what is central atom since they're all atoms with 7 valence electrons, how many bonds I have to...
  13. A

    Need Help Urgently...

    Q1 - Evaluate the iterated integral by converting to polar coordinates ∫0 to 2 ∫-Sqrt 4-x^2 to Sqrt 4-x^2 e^(-x^2-y^2) dy dx The region of integration is bounded by -Sqrt 4-x^2 ≤ y ≤ Sqrt 4-x^2 and 0 ≤ x ≤ 2 Q2 - Evaluate the triple integral ∫∫R∫ OR ∫∫∫R f(x,y,z)dV With f(x,y,z)=Sqrt y...
  14. S

    This one problem...(Help needed urgently!!)

    You travel from San Diego to San Francisco. There are 3 ways to Los Angeles, 2 ways to Beverly Hills from Los Angeles and 4 ways to San Fransisco from Los Angeles. How many different ways you may travel from San Diego to San Francisco?
  15. M

    need a starting point urgently.

    A manufacturer is to design and make plastic drinking cups in the form of an open cylinder and decides that the maximum capacity of the cups must be 400cm^3. clearly the manufacturer wishes to keep costs to a minimum. what dimensions for the cylinder would you suggest? any help would be...
  16. C

    i need to answer a question related to trigonometry urgently

    i have to evaluate without using a calculator cos 165 can someone help me out
  17. E

    Limits? Maybe. Need help urgently.

    I've been working on this problem for a while and it's got me stumped. http://img59.imageshack.us/img59/1536/calc1ho7.png I thought I was doing it right, until in the third column I got Undefined for where x = 2 and f(x) = 4. I don't need the entire column filled it, just a couple values...
  18. F

    Help urgently!

    I have no clue how to work out the revenue for my assignment? please help. "a surfboard company produces a particluar style of thongs. the fixed cost to set up production is $1500 and the cost to produce each pair of thongs is $2.50" a) write an expression for the revenue (R dollars) earned...
  19. J

    complex number and trigo Urgently

    given that z =cosθ +jsinθ ((z²-1)/(z²+1))=jtanθ Can someone prove it to mi pls. THX
  20. M

    Please help urgently derivative of function involving fractional exponents

    Please help. xF(x)=4x3/4-2 We have to find the horizontal and vertical tangent lines for the I can not understand how to do any equation with fractions