ElectricPavlov

Yep, 77 should not be in there either......  AND  65 should not be there

      Yah, I knew why 34 was there....was being fecitious ( it really shouldn't be there as it was incorrect)

Thanx , Alan.....  I frequently  seem to transpose  irrational and  complex  numbers.....

   I edited my answer above to be correct ...I think !

Well.....that is pretty clear....I should have seen that !    Thnx !     ~EP

First one white   6 out of 10     6/10

First non-white, Second one white  4/10 *   6/9  

    add these together ........I think.

Area of equilateral triangle    x     height   = volume of box

Triangle area =  1/2  base * height   =   6  *   6 sin 60    in²           Can you finish from here?

Hey Geno....  I am not sure what this means.... can you explain it to me?

OOps...   25   35   49  55  85 91  95 and 34 should not be in that list ...... 

0 * n = 0

Rational roots means the discriminant of the quadratic formula is >= 0

   15^2 - 4(2)(b) >= 0

       225/ 8 >= b 

        28.125 >= b         

As alan correctly points out below ..... this will give some irrational numbers

The values between 1 and 28 that give RATIONAL numbers would be

0  1  4  9  16  and 25    I believe .... add 'em up

  ~ EP

If they play together, you have  7 beasts left to choose 3 spots      7 c 3

  if they do not play together...at all  you have    7 C 5  

     I think....just add them together