Mathematics

How would i go about tranposing this equation so that I end up with a value for x? Please include working. Thankyou

315.414=2πx^2+860.16/x

  1. 👍 0
  2. 👎 0
  3. 👁 42
asked by MELODY
  1. first, multiply by x and you get

    315.414x = 2πx^3 + 860.16

    then rearrange in descending order of exponent:

    2πx^3 - 315.414x + 860.16 = 0

    Now you have to solve a cubic, which is generally not easy. And in this case, I guarantee it is not easy.

    You will have to fall back on graphical or numeric methods to arrive at the solution. See

    http://www.wolframalpha.com/input/?i=solve+315.414%3D2%CF%80x^2%2B860.16%2Fx

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Maths

    Hi, need a bit of help on this one. A straight line passes through the points (4,3) and (10,0), I need to write down the equation of the line in the form y=mx+c, I have tried but I cant seem to get the second coordinates to

    asked by Del on July 9, 2010
  2. Math Algrebra

    Please Help! I don't know what the equation is and Google isn't helping!!! Please tell me the equation and how you could get the answer of each? 1) A student is the 35th counted from the front end and the 40th counted from the

    asked by Anonymous on October 1, 2016
  3. Calculus help

    \documentclass{article} \usepackage{amssymb,amsmath,amscd,concmath} \pagestyle{empty} \begin{document} \begin{equation*}\int_{1}^{3} [(e^3/x)/(x^2)]\, dx\end{equation*} \end{document} Sorry,the html format does not work... How to

    asked by Linda on February 20, 2007
  4. Physics

    A sign weighing 500N is suspended at the end of a uniform 300N beam 5m in length, as shown. The beam is attatched to the wall with a hinge, and its other end is supported by a wire. What is the tension in the wire if it makes an

    asked by Anonymous on November 14, 2016
  5. Math

    1) A helium balloon is rising according to the function H(t) = -7x^2 + 5x - 11 where h(t) is the height in meters after t seconds. Determine the average rates of increase of height from t=7 to t=23 seconds. I tried h(23) - h(7)

    asked by Dana on January 22, 2008
  6. Math

    1) A helium balloon is rising according to the function H(t) = -7x^2 + 5x - 11 where h(t) is the height in meters after t seconds. Determine the average rates of increase of height from t=7 to t=23 seconds. I tried h(23) - h(7)

    asked by Dana on January 23, 2008
  7. Math

    4(j)-7=9 Add 7 to both sides of the equation and you get 4 j = 16 Now divide both sides of the equation by 4 and you will find out what the value of j is. Whenever you perform the same mathematical operation on both sides of an

    asked by tonya on September 1, 2006
  8. chemistry

    If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is -192 kJ/mol. and heat of formation of water is -286, what is heat of CaO? Ca(s) etc is equation 1.

    asked by nicholas on February 10, 2007
  9. physics

    A rod of length 39.0 cm has linear density (mass-per-length) given by the following equation, where x is the distance from one end. ë = 50.0 g/m + 21.0x g/m2 (a) What is its mass? (b) How far from the x = 0 end is its center of

    asked by mightymouse on March 22, 2009
  10. chemistry

    The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)? by GC 1/lambda = R/ni^2–R/nf^2 y = mx + b (standard form) of a linear

    asked by bubble on January 15, 2010

More Similar Questions