Answer:

Step-by-step explanation:


* You must make sure that you have seven zeros in your decimal.
I am joyous to assist you anytime.
To solve this we are going to use the half life equation

Where:

is the initial sample

is the time in years

is the half life of the substance

is the remainder quantity after

years
From the problem we know that:



Lets replace those values in our equation to find

:




We can conclude that after 1600 years of radioactive decay, the mass of the 100-gram sample will be
91.7 grams.
Answer:
the correct answer is 21.07070206.
Answer:
4:00. I am sure that it is 4 o clock!
Step-by-step explanation:
it is 4:00
Answer: 4.2
Step-by-step explanation: 20 x 21
100
= 4.2