You see I need to know also the reproduction rate as well to equalize it. If 9% of the population declines each year from 2001 to 2021, around 21,006 would die by 2021. Which is 180% more than the population. If the reproduction rate isn't high enough to beat the declination rates, they'd be extinct by then.
 
        
             
        
        
        
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,
, 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:D
Step-by-step explanation:
1
12
12
12
12
12=60
 
        
                    
             
        
        
        
        
Answer:
m
=
5  ,  (
1
,
1
)
−
3  ,  (
1
,
3
)
3  ,  (2
,9
)
Step-by-step explanation: