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bio website benalpert.com
location United States
age 20
visits member for 2 years, 10 months
seen May 10 at 22:49
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Khan Academy / Carnegie Mellon


Jun
21
accepted Proving Stewart's theorem without trig
Feb
13
accepted Coloring points on an n-gon
Jul
30
accepted Which average to use? (RMS vs. AM vs. GM vs. HM)
Jul
30
accepted Counting how many hands of cards use all four suits
Jul
25
accepted Picking cakes if we need at least one of each type
Jul
25
accepted Probability that two people see each other at the coffee shop