Mathematics, 22.08.2020 21:01, mlstogsdill05
Here are two important definitions related to a function f : A ? B. The function f is one-to-one (1β1) if a1=/ a2 in A implies that f(a1) =/ f(a2) in B. The function f is onto if, given any b ? B, it is possible to find an element a ? A for which f(a) = b.
Give an example of each or state that the request is impossible:
(a) f : N ? N that is 1β1 but not onto.
(b) f : N ? N that is onto but not 1β1.
(c) f : N ? Z that is 1β1 and onto.
Answers: 1
Mathematics, 21.06.2019 17:30, 21villalobosjabez
Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.
Answers: 2
Mathematics, 21.06.2019 17:30, kitykay2776
The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.
Answers: 3
Here are two important definitions related to a function f : A ? B. The function f is one-to-one (1β...
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