Answer:
4.1, 2.21, 0.25,0.042
Step-by-step explanation:
you have to add a 0 onto the first one because it will bring it to be equal to most of the others
 
        
                    
             
        
        
        
Answer:
2π/7
Step-by-step explanation:
A cosine wave is:
y = A cos(2π/T x + B) + C
where A is the amplitude,
T is the period,
B is the horizontal shift,
and C is the vertical shift.
In this case:
7 = 2π/T
T = 2π/7
 
        
                    
             
        
        
        
19/29
Find the common factor which in this case is 2. Divide numerator and denominator by common factor. You’re left with 19/29. Since 19 and 29 don’t have any common factors it is in its simplest form.
        
             
        
        
        
Answer:
of what?
Step-by-step explanation: