Mathematics, 24.03.2021 22:50, reinasuarez964
In Robert Recorde's Grounde of Artes (1541), an arithmetic text for algorists and abacists, Recorde gave an rule for multiplying two one-digit numbers greater than 6. Here is the rule: first subtract each number from 10. The product of the two differences you get is the units digit in the product of the original numbers, and if you subtract one of the differences from the other original number, you get the tens digit in the product of the original numbers.
A) Show two examples of this method.
B) Prove that it works.
Answers: 2
Mathematics, 22.06.2019 00:30, steelersfan4343
Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm
Answers: 3
Mathematics, 22.06.2019 00:50, genyjoannerubiera
Atravel agent is booking a trip to england, scotland, ireland, and france for a group of senior citizens. the agent sent surveys to the group, asking which countries they would like to visit, in order, and created the shown preference schedule (e = england, i = ireland, s = scotland, f = france). which country is the condorcet winner? number of votes 15 12 16 19 1st f e e i 2nd e s i s 3rd s i s e 4th i f f f 1. scotland 2. england 3. france 4.ireland
Answers: 1
In Robert Recorde's Grounde of Artes (1541), an arithmetic text for algorists and abacists, Recorde...
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