Recent content by King_Silver

  1. King_Silver

    Sustainable Energy Calculation for Fossil Fuel Mix

    Homework Statement Homework Equations No equations used (to my knowledge). Just arithmetic and understanding of what is being asked. The Attempt at a Solution Was wondering if my solution/approach to this question is correct or not? I don't have any answers to compare it to so any...
  2. King_Silver

    Mixed random variable distribution question

    I got a c value of 1/3 by doing this (1 = c/2 + ½ -c + 2/3 ) Then for part (i): Probability = 1/6th or 16.67% (ii) Probability = 2/3rds or 66.67% (iii) Probability = 1/3rd or 33.3% (iv) Probability = 1/2 or 50% I think I've got it now providing those are the right answers!
  3. King_Silver

    Mixed random variable distribution question

    This is what I did but I don't think I'm going in a correct direction. C = constant whereas c = the value I'm looking for.
  4. King_Silver

    Mixed random variable distribution question

    Thank you for that. I figured it might have had something to do with the expectation formula. E[X] = 1 in terms of c. There are definitions for the expectation of continuous random variables and for discrete ones as well. For a mixed distribution you would need to mix both definitions together...
  5. King_Silver

    Mixed random variable distribution question

    Homework Statement See attached image (See below) Homework Equations Differential equations. And a combination of discrete & continuous distributions The Attempt at a Solution The Continous Distribution Function (CDF) is given in the question. So I differentiated it with respect to x...
  6. King_Silver

    How Does the Poisson Distribution Calculate Tornado Probabilities in Georgia?

    My bad! I calculated it as if it was e-16.8 just left it as 2.4 when I wrote it! my bad. Thanks for the help though! My bad, again; not sure why I did that. Was in a rush responding. Appreciate the feedback. Cheers!
  7. King_Silver

    How Does the Poisson Distribution Calculate Tornado Probabilities in Georgia?

    At least 10, Therefore we need to examine P(X=10). Over 7 years λ = (2.4)(7yrs) = 16.8 P(X=10) = e-2.4(16.810/10!) = 0.02495 (~2.5%) is this correct?
  8. King_Silver

    How Does the Poisson Distribution Calculate Tornado Probabilities in Georgia?

    Homework Statement The number of tornadoes per year, in Georgia, has a Poisson distribution with a mean of 2.4 tornadoes. Calculate the probability that in any given year, there will be: (i) At most 2 cases. (ii) At least one case. (iii) Calculate the probability that there will be...
  9. King_Silver

    Temp. rise that will cause liquid to fill vessel completely

    I've a problem with a question regarding a closed spherical storage tank of 30m^3. Its filled to the 99% mark with Nitric acid and the tank is made of stainless steel. I'm trying to determine the temperature rise that will cause the liquid to completely fill the vessel. I know that as the...
  10. King_Silver

    I Establishing Limits for x in Green's Theorem Practice Questions

    Sorry that should have said the limits of y are x^2 and 9 so when we integrate with respect to y those are the limits. It was a poorly written post. That is embarrassing, I totally overlooked the other value of y despite specifying it. Brain fart. Thanks for the help!
  11. King_Silver

    I Establishing Limits for x in Green's Theorem Practice Questions

    I am currently practicing questions on Green's Theorem however in some questions I have been given a finite region enclosed between a parabola and a horizontal line. In these questions I am given 2 values of y but none of x. In one question I was given that y = x^2 and y = 9 and was...
  12. King_Silver

    I Lagrange Multiplier. Dealing with f(x,y) =xy^2

    Given a question like this: Findhe maximum and minimum of http://tutorial.math.lamar.edu/Classes/CalcIII/LagrangeMultipliers_files/eq0043M.gif[PLAIN]http://tutorial.math.lamar.edu/Classes/CalcIII/LagrangeMultipliers_files/empty.gif subject to the constraint...
  13. King_Silver

    Height of Instrument (Leveling method)

    That's what I was thinking too, like is it even possible to continue this sort of calculation without the RL or initial instrument height? I'm really left in the dark with this one.
  14. King_Silver

    Height of Instrument (Leveling method)

    I recently did a level survey however am a little stumped over a calculation. I am trying to calculate the Reduced Level using the "Height of Instrument" method. I know how to do the calculations etc. so I am not asking for this to be done for me. It is more of a general question about this sort...
  15. King_Silver

    Calculating Vertical +Horizontal Forces of Beam in Equilib.

    Got it sorted! I forgot about the pin and realized where I was going wrong cheers for that!
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