Show that the set is infinite by placing it in a one-to-one correspondence with a proper subset of itself. Be sure to show the pairing of the general terms in the sets.
A. 
| ? | ? | ? | ? | ? |
B.
| ? | ? | ? | ? | ? |
C.
| ? | ? | ? | ? | ? |
D.
| ? | ? | ? | ? | ? |
Answer: B
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Find the inverse of the function.f(x) = 
- 5
A. f-1(x) = 8(x3 + 5) B. f-1(x) = 8(x + 5)3 C. f-1(x) = [8(x + 5)]3 D. f-1(x) = 24(x + 5)
We give an expression describing the number that corresponds to the natural number n. Use this expression to describe a one-to-one correspondence between the natural numbers and one of its subsets.4n - 1
A.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 2, 6, 10, | 14, 18 ..., | 4n - 1, ... |
B.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 1, 5, 9, 13, 17 ..., | 4n - 1 , ... |
C.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? | ? |
| 3, 7, 11, 15, 19 ..., | 4n, ... |
D.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 3, 7, 11, 15, 19 ..., | 4n - 1, ... |
Solve.The daily number of visitors v to an amusement park was always at least 757 but never more than 1128. Express this as an inequality.
A. 757 < v < 1128 B. 757 ? v ? 1128 C. v < 757 or v > 1128 D. v ? 757 or v ? 1128
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $520 to set up for production, and variable costs of $29 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets.
A. C(x) = 520 - 29x B. C(x) = 520 + 29x C. C(x) = 520x + 29 D. C(x) = (520 + 29) x