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The explicit rule for an arithmetic sequence is an=8.7+(-1.4)(n-1) What is the value of the 47th term? Round to the nearest tenth, if necessary.

A. –55.7
B. –26.4
C. 45.6
D. 65.8

2 Answers

4 votes

Answer:

A

Step-by-step explanation:

E2020

User Kyaw Zin Htun
by
7.9k points
3 votes

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

The explicit rule for an arithmetic sequence is


a_n=8.7-1.4(n-1)

We need to find the value of 47th term,

We will put the value of n = 47

So, we get,


a_(47)=8.7-1.4(47-1)\\\\a_(47)=8.7-1.4* 46\\\\a_(47)=8.7-64.4\\\\a_(47)=-55.7

Hence, Option 'A' is correct.


User Drakonli
by
8.3k points
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