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A man is walking across a bridge, when a boat passes under the bridge.How rapidly are the boat and the pedestrian separating after the boat passes under the bridge?
A certain bishop ordered that 12 loaves be divided among his clergy.
Archimedes' work, The Method, explained, along with many other important ideas of the great Greek geometer.
A man went to a draper and bought a length of cloth 35 braccia long to make a suit of clothes.
History of Maya calendars, including the modified base 20 number system used in them
Benjamin Banneker solved some trigonometry problems in his extant notebooks. One of them is discussed here. The authors have also discovered the probable source of Banneker's trigonometry table.
The cost per hour of running a certain steamboat is proportional to the cube of its velocity in still water. At what speed should it be run to make a trip up stream against a four-mile current most economically?
This is from a letter of June, 1695 in which Leibniz is discussing differentiation with Johann Bernoulli. The work in which these letters appear is the Virorum Celeberr. Got. Gul. Leibnitii et Johann Bernoulli Commercium Philosophicum et Mathematica, originally published in 1740.
This is a collection of plates that Leonardo da Vinci created to illustrate De divina proportione of Luca Pacioli.
Now there are three sisters who leave home together.

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