PLEASE HELP! WILL MARK BRAINLIEST!
2 answers:
Answer:
b. 75
Step-by-step explanation:
a(n) = a1 + d(n-1)
a(n) = 8.5 + 3.5(n - 1)
a(20) = 8.5 + 3.5(20 - 1)
a(20) = 8.5 + 3.5(19)
a(20) = 8.5 + 66.5
a(20) = 75
Answer:
75.
Step-by-step explanation:
The nth term = a1 + d(n -1)
Therefore the 20th term = 8.5 + 3.5(20 - 1)
= 8.5 + 3.5 * 19
= 75
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