153k views
5 votes
What is the recursive rule for the sequence -2.7 -8.3 -13.9 -19.5 -25.1

an= an+1+5.6
an=an+1-5.6
an=an-1-5.6
an=an-1+5.6

User GriffeyDog
by
8.5k points

2 Answers

3 votes

Answer:

an=an-1-5.6 C

Explanation:

I took the quiz k12

User Rula
by
8.1k points
2 votes

Answer:

Option C is correct


a_n = a_(n-1)-5.6

Explanation:

The recursive rule for the arithmetic sequence is given by:


a_n = a_(n-1)+d .....[1]

where,


a_n is the nth term and d is the common difference between two successive terms.

As per the statement:

-2.7 -8.3 -13.9 -19.5 -25.1

This sequence is an arithmetic sequence with first term -2.7 and common difference(d) = -5.6.

Since;

-8.3 -(-2.7) = -8.3 +2.7 = -5.6,

-13.9 -(-8.3) = -13.9+8.3= -5.6 and so on..

Substitute the value of d = -5.6 in [1] we have;


a_n = a_(n-1)-5.6

Therefore, recursive rule for the given sequence is,
a_n = a_(n-1)-5.6

User Antony Sargent
by
8.9k points

No related questions found