Answer:
0.50 kg of the material would be left after 10 days.
0.25 kg of the material would be left after 20 days.
Step-by-step explanation:
We have been given that the half-life of a material is 10 days. You have one 1 kg of the material today. We are asked to find the amount of material left after 10 days and 20 days, respectively.
We will use half life formula.
, where,
A = Amount left after t units of time,
a = Initial amount,
t = Time,
h = Half-life.




Therefore, amount of the material left after 10 days would be 0.5 kg.





Therefore, amount of the material left after 20 days would be 0.25 kg.
Answer: Ola
Step-by-step explanation:
The answer is (22) hope it helps have a great day
Merry Christmas and a happy new year
Answer:
48°
Step-by-step explanation:
..,.............,...........
CDB = ABD( given)
CBD= ADB( given)
Now,
CBD+CDB+C = 180°
70°+62°+ C = 180°
C= 180°-132°
C= 48°