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Given the following sequence, find the 50th term:

1.3, 1.5, 1.7, 1.9, 2.1, . . .

A. 10.9
B. 11.1
C. 9.8
D. 8.9

User Alik
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2 Answers

1 vote
B. 11.1

I hope this helps
User Bramp
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3 votes

Answer:

B. 11.1

Explanation:

The sequence is arithmetic, with a first term (a1) of 1.3 and a common difference (d) of 0.2.

The n-th term (an) is given by the equation ...

... an = a1 + (n -1)·d

So, the 50th term is ...

... a50 = 1.3 + (50-1)·0.2 = 1.3 +9.8 = 11.1

User Ido Cohen
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