Yahoo Web Search

  1. Sort by

  1. r = ± 3 - √3, ± 1 - √3 so r IS irrational therefore it must be irrational s = ±√[r^2 + (√3)r.... Solve the resulting quartic equation: r^4 - 4r^2s^2 - 6r^2 + 4s^4 - 12s^2 + 9 = 0 for either "r" or...

    1 Answers · Science & Mathematics · 24/01/2010

  2. Let r = (x(1), x(2), ..., x(n)). So, |r...x(2))^2 + ... + (x(n))^2]. Hence, r(hat) = (x(1)/√[(x(1))^2 + (x(2))^2...x(1))^2 + ... + (x(n))^2)^(-1/2) = (n-1)/|r|. In the case where n = 3, this ...

    1 Answers · Science & Mathematics · 13/03/2013

  3. r/5 + 6/5 = r/7 + 8/7 7r + 42 = 5r + 40 2r = - 2 r = - 1 Answer: r = - 1 Checking: - 1/5 + 6/5 = - 1/7 + 8/7 5/5 = 7/7 1 = 1

    2 Answers · Science & Mathematics · 17/11/2010

  4. (r − 3)(r + 9)=-9 => r(r + 9) −3(r + 9)= -9 => r^2 + 9r −3r − 27 = -9 => r^2 + 6r − 18 = 0 now...

    4 Answers · Science & Mathematics · 15/12/2013

  5. y = r*sin(T) We know that r = 5*sin(T) which gives sin(T) = r/5 And r^2 = x^2...

    3 Answers · Science & Mathematics · 03/05/2010

  6. this can be written as r^2 + 3r - 2 = 0 Now to solve this you can use the discriminat method (delta = b^2...the method of completing the square. r^2 + 3r + (3/2)^2 - (3.2)^2 -2 =0 (r + 3/2)^2 = 9/4 + 2 = 17/4 r+3/2 = +or- sqrt(17/4) r = + sqrt(17/4) - 3/2 or...

    3 Answers · Science & Mathematics · 15/09/2010

  7. R= 1.1926, -4.1926 Try using MathWay.com Hope this helps!

    4 Answers · Science & Mathematics · 07/04/2013

  8. I = e/R + r IR = e + rR {multiply both sides by R} IR - rR = e {subtract rR from both sides} (I - r)R = e {factor left side} R = e/(I - r) {divide both sidea by (I - r)

    4 Answers · Science & Mathematics · 13/10/2007

  9. ✰Answer✰ r = (-3y - 2k)/(a - 1) ✐Derivation✐ 2k + ar = r - 3y Try different... is the better way to solve for r. ar = r - 3y - 2k ar - r = -3y - 2k Factor the left side. r(a - 1) = -3y - 2k r = (-3y - 2k)/(a...

    3 Answers · Science & Mathematics · 27/07/2012

  10. 200,000 = r * [1 - (1 + 0.025)^(-40) ] / 0.025 First... into fractions: 200,000 = r * [1 - (1 + 1/40)^(-40) ] / (1/40) Division... if you don't do the same): r ≈ 5000 / 0.6275694 r ≈ 7967.24663 (rounded...

    2 Answers · Science & Mathematics · 07/07/2016

  1. Try asking your question on Yahoo Answers