Find the fourth term of an arithmetic sequence if the first term is 12 and the common difference is -3. A (subscript 4)=???
1 answer:
Answer:
The fourth term of the sequence is 3
Step-by-step explanation:
For an nth term in an arithmetic sequence
A(n) = a + (n - 1)d
Where n is the number of terms
a is the first term
d is the common difference
From the question
a = 12
d = - 3
So the fourth term of the sequence is
A(4) = 12 + (4 - 1)-3
= 12 + (3)(-3)
= 12 - 9
The final answer is
3
Hope this helps you.
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Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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