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Answered

Which term of the arithmetic sequence is -18, given that a, = 7 and a₂ =2? C​

Sagot :

Answer:

6th term

Step-by-step explanation:

An=A1+(n-1)d

An=-18

A1=7

d=A2-A1= 2-7=-5

n=(An-A1)/d +1

n=(-18-7)/-5 +1

n=-25/-5 +1

n=5+1

n=6