Mathematics, 13.07.2019 19:20 KillerSteamcar
Problem 4.1. let a, b and c be non-empty sets, r a relation from a to b, and s a relation from b to c. (1) prove dom(s r) c dom(r). (2) find a concrete counterexample for the statement dom(so r) = dom(r) . hint. (1) let x dom(so r). (and all you need to do is to show x e dom (r) .) (2) give a counterexample with concrete a, b, c, r and s. 21 .ah +hat
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Mathematics, 21.06.2019 16:30
Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?
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Mathematics, 21.06.2019 18:30
1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation
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Mathematics, 21.06.2019 18:40
A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days
Answers: 1
Problem 4.1. let a, b and c be non-empty sets, r a relation from a to b, and s a relation from b to...
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