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What is the answer please helpppp i have a quizzz after a whileeeee

What is the answer please helpppp i have a quizzz after a whileeeee-example-1
User Sofien
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1 Answer

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Answer:

d = - 3 and a = 1

Explanation:

The n th term of an arithmetic sequence is


a_(n) = a + (n - 1)d

where a is the first term and d the common difference

Using a(10) = - 26 and a(36) = - 104, then

a + 9d = - 26 → (1)

a + 35d = - 104 → (2)

Subtract (1) from (2)

26d = - 78 ( divide both sides by 26 )

d = - 3 ← common difference

Substitute d = - 3 into (1) or (2)

(1) : a - 27 = - 26 ( add 27 to both sides )

a = 1 ← first term

User Christopher Corley
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