Find a formula for the nth term of the arithmetic sequence whose first term a and common difference d are given.a = -13, d = -6

A. an = -6n - 7
B. an = 6n + 7
C. an = -6n - 13
D. an = 6n + 13


Answer: A

Mathematics

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Find the nth term an of the geometric sequence.0.0005, 0.01, 0.2, 4, . . .

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Mathematics