Question

30 points!!!!!!!!!!!!

Use the recursive formula to answer the question.

a1=20
an=an−1−5

What is the 4th term in the sequence?

Answer 1

5

Explanation:

an = an_(n - 1) - 5

a2 = a1 - 5

a2 = 20 - 5

a2 = 15

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a3 = a2 - 5

a3 = 15 - 5

a3 = 10

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a4 = a3 - 5

a4 = 10 - 5

a4 = 5