The maximum value attained by the function will be 4
4 = 4cos(2x - π)
cos(2x - π) = 1
2x - π = 0
x = (nπ)/2
From x = 0 to x = 2π, n = 1, 2, etc
The equation will yield +4 for odd values of n and -4 for even values of n
        
             
        
        
        
Tax= 85 times 7% = 85 times 0.07
tax =85 times 0.07 = 5.95
  
tax = 85 = 5.95 2= 90.95
  
   the answer is   90.95
        
             
        
        
        
Answer:
20 is the father's 20 is the son
Step-by-step explanation:
20+20=40
40/2=20
40-20=20
another way:
20:n= 40
40-20=20
20:20=40 
 
        
                    
             
        
        
        
Answer:
it is approximately 12.57meters
 
        
                    
             
        
        
        
Answer: 84.5 cm3
explanation: 1.3x13x5=84.5 cm3
hope this helps!