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  1. Remember that the sum of all (nonzero) probabilities should equal 1. So, we need P(1, 1) + P(1, 2) + P(2, 1) + P(2, 2) = 1 ==> 3k + 4k + 5k + 6k = 1 ==> k = 1/18. I hope this helps!

    1 Answers · Science & Mathematics · 18/03/2014

  2. http://www.flickr.com/photos/dwread/12998969833/

    2 Answers · Science & Mathematics · 13/03/2014

  3. log₃(∛3) = log₃(3^⅓) = ⅓

    2 Answers · Science & Mathematics · 13/03/2014

  4. Equation for Elasticity of Demand: E(P) = (dQ/dP)*(P/Q) Where: (dQ/dP) = derivative of the demand function P = Price Q = Quantity The demand function we're...

    2 Answers · Science & Mathematics · 13/03/2014

  5. directrix -1? directrix x= -1? or y = -1 ? P(x,y) on the parabola, focus F PH is the distance to the directrix so PF = PH

    1 Answers · Science & Mathematics · 04/03/2014

  6. Area of the dodecagon: did you make a diagram ? you can make 12 isosceles triangles whose legs are 14 cm (made of radii) and whose central angle is 30º the area of one of these triangles is: (1/2)(14)(14)(sin 30...

    1 Answers · Science & Mathematics · 04/03/2014

  7. ...point F, we have to solve for triangle FPQ to get the values of PF and QF. The distances from P and Q to the flagpole...

    2 Answers · Science & Mathematics · 13/02/2014

  8. PF: Let G be a group and let x,y,z be in G, such that If...

    1 Answers · Science & Mathematics · 30/01/2014

  9. ...1) you can find the equation directly P(x,y) is a point of the parabola PF = PH (where H is the projection of P on the directrix) ...

    2 Answers · Science & Mathematics · 17/01/2014

  10. Inequalities are just like equations but the only difference is that when u multiply a negative number the sign of the inequality changes. say for example 4 > 3 which is true now multiply by -1 on both sides so -4 < -3.Note if u don...

    3 Answers · Science & Mathematics · 13/01/2014

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