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David K

Massachusetts

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Top Questions
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Top Answers
217
Calculating the length of the paper on a toilet paper roll
math.stackexchange.com

85
Why is a geometric progression called so?
math.stackexchange.com

62
Exam with $12$ yes/no questions (half yes, half no) and $8$ correct needed to pass, is it better to answer randomly or answer exactly 6 times yes?
math.stackexchange.com

62
Why is right to spell “eating” not “eatting”?
ell.stackexchange.com

61
Is there a common saying in English that means “It's just business, I don't feel any shame”
english.stackexchange.com

56
What would you call someone who sneaks into and stays in places where they have to be signed up, e.g. classes/country clubs
ell.stackexchange.com

47
What is the exact difficulty in defining a point in Euclidean geometry?
math.stackexchange.com

45
Identification of a quadrilateral as a trapezoid, rectangle, or square
math.stackexchange.com

43
Why is an ellipse, hyperbola, and circle not a function?
math.stackexchange.com

43
If squaring a number means multiplying that number with itself then shouldn't taking square root of a number mean to divide a number by itself?
math.stackexchange.com

42
In how many different ways can a 9-panel comic grid be used?
math.stackexchange.com

38
Is the proof of Pythagorean theorem using dot (inner) product circular?
math.stackexchange.com

33
An adjective for a woman showing lots of skin?
ell.stackexchange.com

32
What's wrong with solving absolute value equations in this way?
math.stackexchange.com

31
Is $∅ ∈ \{ \{∅\} \}$ true?
math.stackexchange.com

30
What is the difference between feet and very feet?
ell.stackexchange.com

29
Are wings any more efficient at creating lift, versus orienting the engine's thrust downwards?
aviation.stackexchange.com

29
Is π equal to 180$^\circ$?
math.stackexchange.com

29
What is $0\div0\cdot0$?
math.stackexchange.com

28
Solution for kth row of Pascal's triangle for a job interview
codereview.stackexchange.com

23
Confusion about the null (empty) set being contained in other sets
math.stackexchange.com

23
Why do differentiation rules work? What's the intuition behind them? (Not asking for proofs)
math.stackexchange.com

23
How would you count a base $> 36$ system?
math.stackexchange.com

22
Is $[p \land (p \to q)] \to q$ a tautology?
math.stackexchange.com

21
Are all quadratics factorable into a product of two binomials?
math.stackexchange.com

21
Showing that $m^3+4m+2=0$ has only one real root
math.stackexchange.com

21
How to find length of a part of a curve?
math.stackexchange.com

21
What does “I don't suffer from insanity” mean?
english.stackexchange.com

21
What do you call a person who is utterly independent and a loner?
english.stackexchange.com

19
Is there an adjective for “untruthful, especially when pretending to know more than one actually does”?
english.stackexchange.com

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