Answer:
i) 8
ii) yes 400 is a value in the sequence as the nth term would be 200 for that, 400 is also divisible by 2, and as 2 is the coefficient of n, 400 can be a value in the sequence.
Step-by-step explanation:
for n as term number:
n = 4
2n = 8
i) 8 is the fourth term
for n as unknown:
2n = 400
400/2 = n
200 = n
ii) yes 400 is a value in the sequence as the nth term would be 200 for that, 400 is also divisible by 2, and as 2 is the coefficient of n, 400 can be a value in the sequence.
