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  1. D

    Match the post#

    0 + 1 - 2 + 3 + 4^5 - 67 + 89 = 1048 -[√9 - 8 + 7 + 6! * √(5 + 4)] + 3210 = 1048
  2. D

    Distance between two points

    I'll never cease to amaze you...
  3. D

    Series

    Gets kinda weird using Mark's formula: 65, 33, 17 ,9 ,5 ,3 ,2 , 3/2, 5/4, 9/8, 17/16, ....
  4. D

    Distance between two points

    Beautyfull! Mark, you should take the "Amazon Test": you'll ace it!
  5. D

    Distance between two points

    Well, hello to you too! Are you asking what the shape of the cable is? If so, go here: https://en.wikipedia.org/wiki/Catenary
  6. D

    Mupad: ode::solve showing error" equation is not ordinary"

    I solved it in my head...but then forgot my solution...sorry :)
  7. D

    where did this term go?

    Same here....I'd make it a full 24 hours...
  8. D

    Match the post#

    Subhotosh, you bad boy, you should have posted a solution for 1046...you too can be replaced!! 0 + 1234 - 5! + 67*(8 - 9) = 1047 987 + 6 + 54 + 321*0 = 1047
  9. D

    Match the post#

    But Jomette, that is not fully bracketed: so zip yer trap!! 0*1 + 2 - 3 + 4^5 - 67 + 89 = 1045 -9 + 8 - 7 + 6 + 5*4 + 3 + 2^10 = 1045
  10. D

    I need desperate HELP, Finance question

    Threads not deleted here. May we ask you to come back when you find out what the given solution is and post it: may help someone else; thank you.
  11. D

    where does this (1/2) come from

    As Ralph Kramden would yell: Bang Zoom !!
  12. D

    Match the post#

    Ahhh...I see...all my fault: I meant T = Triangular number, F = Fibonacci number; not functions as such. HOKAY: now changing the rules: no functions or stuff like T and F allowed! -(0! + 1 + 2 + 3) + 4^5 - 67 + 89 = 1039 98 - 76 + 5 - 4*3 + 2^10 = 1039 Edit: Fixed Typo
  13. D

    Match the post#

    0! + 1 \cdot 23 + 4 \cdot 56 + 789 = 1037 987 + (6 + 5) \cdot 4 + 3 + 2 \cdot 1 + 0! = 1037 To the corner Otis: should be t(45) , not f(45) And you, Jomo: you needed to post a solution to 1033....bad boy....
  14. D

    where does this (1/2) come from

    Very droll Jean-Marc !
  15. D

    where does this (1/2) come from

    What KS said is not "probably right": it is "definitely right"!. You're wasting your time on a typo...
  16. D

    I need desperate HELP, Finance question

    This is not a classroom; go read up: http://financeformulas.net/Present_Value_of_Annuity.html Anyway, seems to be something wrong with the problem statement: as far as I can tell, the given cost of $840,000 is not required. What d'you think Halls?
  17. D

    I need desperate HELP, Finance question

    You need to use the present value of an annuity formula: p = a(1 - k) / r where k = 1 / (1 + r)^n a = 174000 n = 14 r = .10 : assumes rate is 10% cpd. annually p = ? Same thing for part 2, except n = 7 Your teacher gave the class that problem and did not give the formula?
  18. D

    Match the post#

    0 - 1 - 2 - 3 + T(45) - 6 + 7 - 8 + 9 = 1031 F(9 + 8 - 7 + 6) + 54 - 3^2 - 1 + 0 = 1031 T(45) = 45th Triangular number = 1035 F(16) = 16th Fibonacci number = 987
  19. D

    Quadratic equation help

    Perhaps it would be easier if you let k = pi * h / 3 Then equation becomes: V = k(R^2 + Rr + r^2)
  20. D

    writing as a single fraction

    Would have been clearer if shown this way: [5 / (4x^2 - 25)] - [(2x + 3) / ((4x^2 + 16x + 15) / 7)] Remark: x <> +- 2.5 : do you see why?
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