Aladder of length 2x+1 feet is positioned against a wall such that bottom is x-1 feet away from a wall. the distance between the floor and top of the ladder is 2x. assume that a right angle is formed by wall and the floor.

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.