Answer:
(i) Approximately 3 half lifes
(ii) 
Step-by-step explanation:
(i) ∵ The half life of Radon-222 is approximately 3.8 days,
So, the number of half life in 11.46 days =
≈ 3
(ii) Since, the half life formula is,

Where,
= initial quantity,
t = number of periods
= half life of the quantity,
Given,
N = 
t = 11.46 days,



For question 1A. each mug will be 1/9 because 4/9 divide by 4 is 1/9B. 3/9 or 1/3 because 1/9 times 3 is 3/9
For question 2 5/6 divide by 4 equals 5/24. So each plot would be 5/24 km squared. Multiply that by 3 and it would be 15/24. So the answer would be 15/24 km squared if i'm correct.
Hope i helped!!
Answer:
the third option would be the best
Step-by-step explanation:
2/7 + 3/8 = 37/56 = .660
1/10 + 3/8 = 19/40 = .475
correct answer------------ 1/6 + 1/8 = 7/24 = .291
2/9 + 1/8 = 25/72 = .347
1/12 does not belong with the others because you can simplify the others, but not 1/12
Answer:


Step-by-step explanation:
We are given that

We have to complete the recursive formula of f(n).
Substitute n=1






It forms geometric sequence because the ratio of two consecutive terms are equal.
Therefore, the recursive formula

