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**65 POINTS PLEASE ANSWER SOON** If the fourth term of an Arithmetic sequence is 48 and the third term is 36... (A) What is the first term? (B) What is the twelfth term?
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**65 POINTS PLEASE ANSWER SOON**

If the fourth term of an Arithmetic sequence is 48 and the third term is 36...

(A) What is the first term?

(B) What is the twelfth term?

User Limon Monte
by
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1 Answer

11 votes

Answer:

1st term is 12

12th term is 144

Explanation:

48-36=a4-a3=a1 so a1 is equal to 12 now to get from a3 to a4, you must add 12, so d=12.

a12=12+11*12=12+132=144

User Krysten
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