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?

Question

asked Sep 25, 2022 207k views

1 Answer

Krysten · Answer 1 · 2022-10-02T14:32:20+0000

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