Answer:
Step-by-step explanation:
s(1-30/100)=420
s(100-30)/100=420
s(70/100)=420
s(7/10)=420
7s=4200
s=600
 
        
             
        
        
        
Answer:
The variance of the measure of productivity = 141.67(to 2 d.p)
Step-by-step explanation:
The complete question and the step-by step explanation are contained in the files attached to this solution.
 
        
             
        
        
        
Answer:
The indefinite integral
=  ˣ
 ˣ  ⁺ C
 ⁺ C
Step-by-step explanation:
x= 10sinθ
dx = 10cosθdθ
the step-to-step explanation is in the attachment
 
        
             
        
        
        
The calculation: 4kg-2.3kg = 1.7 kg 
The crate weighs 1.7 kg
        
             
        
        
        
Answer:
x = 2n - 4
Step-by-step explanation:
hope this helped have a great day