Answer:
809.4cm²
Step-by-step explanation:
Given the following :
Systematic error = 3.8cm (The measured length is always more than the actual length.)
Most probable dimension :
Width = 85.7 cm
Length = 123.5 cm
Hence most probable area of Rectangle :
Area = Length × Width
Area = 85.7cm × 123.5cm = 10583.95 cm²
Dimension due to Systematic error :
Length = (85.7cm + 3.8cm) = 89.5cm
Width = (123.5cm + 3.8cm) = 127.3cm
Area = Length × width
Area = ( 89.5cm × 127.3) = 11393.35cm²
Systematic error of the area : 
value of area with Systematic error - Probable value of area :
11393.35cm² - 10583.95 cm² = 809.4cm²
 
        
             
        
        
        
Answer:
I think it will over 30 ways but im not sure
hope this helps
have a good day :)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
12 days
Step-by-step explanation:
 
        
                    
             
        
        
        
0.78 strikeouts per minute
        
             
        
        
        
Answer:
9
Step-by-step explanation:
A = B + 2 
C = B - 3
A x C = 66
A = Andrew
C = Chris 
B = Beatrice
Multiply A and c together 
(B + 2) x (b - 3)
b^2 - 3b + 2b - 6 
b^2 -b - 6 = 66 
b^2 - b - 72 = 0 
factors of -72b^2 that add up to - b are -9b + 8b
b^2 + 8b -9b - 72
b (b + 8) -9(b + 8) 
b = 9 or - 8
 b = 9