Hey there!! 
Scientific notation of 0.000000001 : 
0.1 ⁻⁷
Hope it helps!
 
        
                    
             
        
        
        
Answer:
Yes
Step-by-step explanation:
In any triangle, the sum of any two sides must be larger than the third side. To test this, we only actually need to pick the two shorter sides. In this case, the following inequality is true:

 
        
             
        
        
        
3 celsius is equal to 37.4 Ferenheight
        
             
        
        
        
Answer: the product is = 33+4i 
Step-by-step explanation: 
21+4i-12i^2 
21+4i-12(-1) i^2=-1
21+4i+12
your answer would be 33+4i .
 
        
             
        
        
        
Answer : The substances half life in days is, 5.6 days.
Step-by-step explanation :
Half life : It is defined as the amount of time taken by a radioactive material to decay to half of its original value.
All radioactive decays follow first order kinetics.
The relation between the half-life and rate constant is:

where,
k = rate constant = 0.1235 per days
 = half-life
 = half-life
Now put all the given values in the above formula, we get:


Thus, the substances half life in days is, 5.6 days.