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Reference
Mar
What is the approximate perimeter of the figure shown below?
37.68 m
18.84 m
30.84 m
24 84 m
r= 6 m

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

answer: a and b

step-by-step explanation:

b.-4 units

all you   do is count how many times you move