HELP PLEASE Carlie, Samantha, Lily, and Maria ran the 400-meter relay today at the track meet. If their times were 12.8 seconds, 13.25 seconds, 12.06 seconds, and 13.12 seconds, what was their total time for the race (in seconds)?

39.71 seconds
51.23 seconds
40.13 seconds
51.13 seconds

Thank you ☺️☺️☺️

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.

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option