Ineed fast ! 21 !

solve -5(3 n + 4) = 40.

-4
-3
3
4

The answer is -4.

Step-by-step explanation:

-5(3n+4)=40

-15n -  20 = 40

15n = 60

-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.