Answer:
The slope formula is used to find the slope of a line that joins two points (x₁, y₁) and (x₂, y₂). Using this formula, the slope of the line is, m = (y₂ - y₁) / (x₂ - x₁). We can use the same formula to find the slope of a line from its graph also.
 
        
             
        
        
        
Answer:
7507
Step-by-step explanation:
8760-1253=7507
 
        
             
        
        
        
(2b^4)^(-1)=1/(2b^4)
  
^(-1) basically means reciprocal
        
             
        
        
        
Answer:
There is nothing there...
Step-by-step explanation:
There is nothing at all.
 
        
                    
             
        
        
        
Step-by-step explanation:
Radius of the circle is 20mm.
Use the formula for the area of the circle.
A = r^2 * π
A = 20^2 * π
A = 1256.64 mm^2 (2 d.p.)