Recent Activity

Activity stream for all registered members at Math Forums.

  1. RobertSmart replied to the thread Random Probability Question.

    The probability that both your boss and the international partner end up in the same city can be calculated by considering the...

    May 9, 2024 at 12:10 PM
  2. Phrzby Phil replied to the thread Sub-perfect Numbers.

    16 does not equal to 12 - 1.

    May 8, 2024 at 1:21 PM
  3. RobertSmart replied to the thread Sub-perfect Numbers.

    The conjecture that all sub-perfect numbers are powers of 2 is indeed false. A counter-example to this conjecture is 12. To show that...

    May 8, 2024 at 12:48 PM
  4. RobertSmart replied to the thread Has anyone ever done this before?.

    What you're observing is a fascinating mathematical pattern! When you divide each number by the next consecutive number, you're...

    May 7, 2024 at 11:55 AM
  5. moonlighthunter replied to the thread Basic Algebra - Factorising.

    Thank you for your replies. It made sense.

    May 7, 2024 at 8:59 AM
  6. RobertSmart replied to the thread General solution for differentiation.

    a) Starting with 3^2y^2dy/dx=2−1, We can simplify it to 9y^2dy/dx=1. Now, we can separate variables: 9y^2dy=dx Integrating both...

    May 6, 2024 at 12:17 PM
  7. HallsofIvy replied to the thread Transcendental Numbers...1.

    Do you remember when calculators did not exist? I do! We used tables of logarithms. \log(e^{\pi}}= \pi \log(e)= 3.1416(0.4343)= 1.3644....

    May 4, 2024 at 2:07 PM
  8. HallsofIvy liked RobertSmart's post in the thread why would i times this by three.

    "Solving for r" entails isolating the variable r on one side of the equation, typically in the form of "r = something" or "something =...

    May 4, 2024 at 1:45 PM
  9. RobertSmart replied to the thread Word Problems, oy. Help me create the right equation?.

    To find the number of turns it would take for each build to reach 100 miles/km/points, we can use the following equation: Number of...

    May 4, 2024 at 12:53 PM
  10. RobertSmart replied to the thread Basic Algebra - Factorising.

    To factorize ax^2−b^2, we use the difference of squares formula: ax^2−b^2=(x√a−b)(x√a+b). Given that ax^2−b^2=9x2−4, we identify a=9...

    May 2, 2024
Loading...