Which of the following represents a correct step in completing the square for the equation 4x^2+8x=-16? a.(x+2)^2=-3b.(x+1)^2=-3c.(x+1)^2=- 4d.(x+2)^2=-4

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.

5.5

step-by-step explanation: