Answer:
the practice of analyzing and describing a complex phenomenon in terms of phenomena that are held to represent a simpler or more fundamental level, especially when this is said to provide a sufficient explanation.
Step-by-step explanation:
from dictionary . com or smth
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
The swordfish swims at 68 miles per hour because 4•17=68
 
        
             
        
        
        
Answer:
(
−
1
,
−
16
)
Step-by-step explanation:
 
        
             
        
        
        
Remark
Good thing to know. This is a rounding question. 
A
Answer A is a bit nasty. I round 5 to the next highest number on the left. That may not be what you have been told to do. Let us round A to  5.7 and see if anything else does this.
B
Answer B rounds to 5.6 
C
Answer C rounds to 5.6 as well. 3 is less than 5 so you round down.
D
Answer D rounds to 5.6(.) The zero has no effect on the 6. 
Answer
Since there is nothing special about A and nothing else rounds to 5.7, the answer is A. So your rule is when the last number is 5, you round the second last number to one more than it was, regardless of the properties of the second last number.
 
        
             
        
        
        
a) (2a - b)² = (4a² - 4ab + b²) 
b) (10m - n²)² = (100m² - 20mn² + n⁴) 
c) (4x - 4²) = (16x² - 8x + 4⁴) 
d)
e) 

f) 
