619 reputation
18
bio website
location
age
visits member for 1 year, 8 months
seen Jan 10 at 22:35

Dec
13
comment Number of ways to choose k people from an alphabetized list of n people, with “gap” g
Yw, Glad it helped. I don't think there is. It is a recursive solution. The algorithm would be the solution "formula" itself. There is a lengthy closed form for its count though and I haven't figured it-- yet.
Dec
13
comment Number of integer solutions
You have infinite number of solutions whenever you have a solution with non-0 terms on the LHS.
Dec
13
answered Number of ways to choose k people from an alphabetized list of n people, with “gap” g
Dec
13
comment Calculating the aspect ratio of the rotated rectangle on the image
the credit card itself can be a reference. those cards come in standard size and thus ratio.
Dec
12
answered Draw a square around a point.
Dec
12
comment Calculating the aspect ratio of the rotated rectangle on the image
a reference that you know of the aspect ratio. eg. that of font printed on the card.
Dec
11
comment A math teacher thought of a positive integer of two digits.
wore me out. i took "divisors" differently-- outside its meaning. the idea is the number of divisors should be high enough that $2$ has to be one of them for the number be ( (even) & (less than $100$) ).
Dec
11
comment Strong inducti0n with 3- and 5-peso notes and can pay any number greater than 7.
this is an old Q.
Dec
11
comment A math teacher thought of a positive integer of two digits.
Still $6$ divisors BTW, not $7$. Those multiplied giving the number itself. Fell quick for your first comment.
Dec
11
comment A math teacher thought of a positive integer of two digits.
$96=2^5\times3$. Hanna can't chose between $96$ and $64$ by herself.
Dec
11
revised A math teacher thought of a positive integer of two digits.
added 89 characters in body
Dec
11
comment A math teacher thought of a positive integer of two digits.
Well, work it for 7 then. this is a solution. Thanks for the warning though.
Dec
11
answered A math teacher thought of a positive integer of two digits.
Dec
11
comment Contrapositive of an Implication
you sure about your resource ?
Dec
11
revised Probability of choosing like partners
added 729 characters in body
Dec
11
awarded  Commentator
Dec
11
comment Probability of choosing like partners
yup, figured trying n works. Thx again.
Dec
11
awarded  Custodian
Dec
11
comment Probability of choosing like partners
Thanks for the edit. how do you add the TeX markup in here though ?
Dec
11
reviewed Approve suggested edit on Probability of choosing like partners