1. R

    Semi-Basic Algebra Problem to Solve for X (aka Scheduled Hours): See Attachment

    Please see the attached PDF file for Productivity Report data required to solve the problem: Question Posed: You are targeting a total Production Volume (of packages) increase of 10% in the next 7 days compared tothe last 7 days' Actual Production Volume. Assuming you maintain the same...
  2. R

    Semi-Basic Algebra Question to find X (Scheduled Hours) Please See File Attachment

    Question Posed (Please See Attachment File For Data and Formulas Broken Down): You are targeting a total Production Volume increase of 10% in the next 7 days compared tothe last 7 days' Actual Production Volume. Assuming you maintain the same Productivity Rateas last week for...
  3. B

    Help with predicate logic

    Hello, I wanted to ask if someone could help with translating these sentences into predicate logic. I am a bit confused about them. 1. Jessica Cannot Outrun Any Man On The Team. 2. Jessica Cannot Outrun Every Man On The Team. 3. Everybody Knows Somebody Who Knows Alice. 4. Somebody Knows...
  4. mosesquine

    predicate logic question - proof with definite descriptions

    Hello, I want to know how to prove the argument's validity such as: 1. (∃x)(Fx & (∀y)(Fy → x = y)) ∴ (∃x)(∀y)((Fy ↔ x = y)) The premise and the conclusion are both definite descriptions equivalent. I want to know the processes that prove the validity of it.
  5. S

    help with practice question

    The following table the gives the annual income, in thousands of dollars, for a bunch of people that I made up. Person: Bill Sue Tom Tim Maggie Ray Ed Art Income: 32 52 91 8 107 36 52 51 Let be the income of person . a) Find and interpret your solution. b) Find...
  6. D

    Practical word question

    Hi. I work out the answer in my head but of course the teacher wants to see my workings! Can someone please show me the equation to use? Thanks 25 students go to a ball and total amount spent is $5500. Boys spend $100 each and girls spend $400 each. How many girls go to the ball?
  7. math951

    Question on differentiatialibility and continuity

    I am reviewing all of my notes where we have a piecewise function, and I see everytime we check for differentiability, we check for continuity first. For example I will show you problem. I do not understand why do we check continuity first always, if the theorem holds that if it is...
  8. M

    Recursive Question - Discrete Maths

    Let b0, b1, b2, . . . be the sequence defined recursively as b0 = 0, bk = k − bk−1 for each integer k ≥ 1. (a) Write out the first 8 terms of this sequence, and use that information to guess an explicitformula for this sequence. (b) Prove that your guess of an explicit formula is correct. I...
  9. V

    Newbie to Pre-Cal (w/ Finding Inverse of Function question)

    I'm a high school student enrolled in a Pre-Cal course. I'm not very skilled when it comes to math, I've maintained C's and B's in each Math class I've ever been in and I've had to re-take a few of them.. I want to change that and keep my grades high this year. (Happy) Thank you everyone for any...
  10. N

    Fuzzy logic question - operator

    Hello, can someone explain intuitively why is fuzzy operator "OR" of sets A and B equal to maximum of of these two sets. Thanks.
  11. B

    New member and a question

    Hello everyone, my name is Eva, i'm 22 and i'm new here. I have a question regarding the Gale-Shapley algorithm and I'm not sure to which forum it belongs. I would really appreciate any help in pointing out where should I post my question as I don't want to just spam random ones. (Cool)...
  12. A

    Trying to solve a set problem given several sets

    Hello, I've been trying to figure out how to solve this question below: Let A, B, and C be sets in a universal set U. We are given n(U) = 82, n(A) = 46, n(B) = 41, n(C) = 42, n(A ∩ B) = 25, n(A ∩ C) = 18, n(B ∩ C) = 23, n(A ∩ B ∩ CC) = 13. Find the following values.(a) n(AC ∩ B ∩ C) (b)...
  13. topsquark

    Distribution Question

    The spam filter caught another one.
  14. L

    Distribution Question

    The mean of a random sample of n observations drawn from a N(μ, σ^2) distribution is denoted by X-bar. Given that P( | X-bar - μ | > 0.5σ) < 0.05 a) find the smallest value of n b) with this value of n find P( X-bar < μ + 0.1σ )
  15. J

    Quick Eigenvalue/Eigenvector question

    Hello everyone, I'm doing a plane fitting problem and I've concluded that I'm going to do a singular value decomposition to find the parameters I need for my plane. I've been reading around and everyone is saying that once I have my U S and V' that the normal vector to my plane will be the...
  16. topsquark

    Distribution question

    The spam filter caught this one by mistake.
  17. A

    I am learning conic section but this question is stopping me from proceeding.

    How will I use ROTATION OF AXES to eliminate xy-term in the equation xy=8?...i want to know the type of conic section it is. I know fundamentally that x=Xcos(k) - Ysin(k) and y= Xsin(k) + Ycos(k), where k is the angle in which either the Parabola, ellipse or hyperbola was rotated and...
  18. N

    Optimisation of volume question

    A right circular cone is machined from a solid sphere of radius 30 cm. Find the ratio of thevolume of the cone to the volume of the sphere when the volume of the cone is a maximum Could anyone help me out with this question?
  19. B9766

    2-part question involving the signs applied to square roots

    OK, please bear with me. This is my first post and perhaps it belongs more appropriately in some number theory forum. I'm taking an Algebra I refresher course. The first part of the question involves a statement made by the professor: "Remember that the square root of 9 is always 3 but when...
  20. R

    a question about 'properties of multivariate normal distributions'

    hello guys, i have a question and looking for an answer quickly... :) question; prove that, Z is a vector. thank you.