Answer: Should be 56 Stickers
Step-by-step explanation:
4*12 =48 + 8 = 56 but since I dont have the pictures dont really have proof that im right
Answer: 41.5 min
Step-by-step explanation:
This problem can be solved with the Radioactive Half Life Formula:
(1)
Where:
is the final amount of the radioactive element
is the initial amount of the radioactive element
is the time elapsed
is the half life of the radioactive element
So, we need to substitute the given values and find
from (1):
(2)
(3)
(4)
Applying natural logarithm in both sides:
(5)
(6)
Clearing
:
This is the time elapsed
Answer:
1: 120
2: 138
3: Less than
Step-by-step explanation:
Answer:
A) 
Step-by-step explanation:
A) 

= 2y
B) 

Hence,
is divisible by
and the correct option is (A).