Describe in English a PDA accepting the language L as follows: L = { w1#w2# . . . #wk#w : w, wi ∈ {0, 1} ∗ and wj = w R for some j }. That is, for a string to be in L, it must have alphabet a subset of {0, 1, #}, and when cut up into pieces by omitting the #, the final piece is the reverse of one of the other pieces.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

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step-by-step explanation: