Answer:
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Step-by-step explanation:
The generating function of a sequence is the power series whose coefficients are the elements of the sequence. For the sequence

the generating function would be

we can multiply P(x) by x to get
Note that

which for
can be rewritten as

Answer:
D
Step-by-step explanation:
Answer:
X=8.6
Step-by-step explanation:
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Subtract 20 and 10. To get your answer
Answer:
Step-by-step explanation: