Show that the function of example is not one-to-one. (example: let f be the set of all nonempty finite sets of integers, so f ⊆ of calligraphic p(z). define a function s: f → z by setting s(x) to be the sum of all the elements of x.)

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step-by-step explanation:

the answer is d. (1.2, -4.7) on edgn

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7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: