Element X decays radioactively with a half life of 10 minutes. If there are 760 grams of Element X, how long, to the nearest tenth of a minute, would it take the elementt
decay to 39 grams?

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.

one that is bigger than 3 1/2

14.29%

step-by-step explanation: