Step-by-step explanation:
Formula:
d×3.14=C
 or
r×3.14×2=C
d=diameter 
r=radius 
 
        
             
        
        
        
Multiply then simplify, that's doing the same work twice...anyway
x^3+x^2y+xy^2-x^2y-xy^2-y^3
x^3-y^3  which if factored is:
(x-y)(x^2+xy+y^2)  which is what you started with :)
        
             
        
        
        
Answer:
.1273 mi = 627.2 feet
c = 2 r
r
.4 = 2 r
r
r = 
r = 
d = 
d = .1273 mi = 627.2 feet
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
(i) Area of ABCD = (base1+base2)*height/2 
                            = (6+12)*4/2 = 36 cm2
(ii) Volume = Area of ABCD * length = 36 * 25 = 900 cm3
(iii) Total SA = Area of ABCD *2 + 25*5*2 + 6*25 + 12*25 
                     = 72                         + 250      + 150   + 300
                     = 772cm2
 
        
             
        
        
        
Answer:
Look below for coordinates
Step-by-step explanation:
A: -2, 3 to A': -2, -3
B:  5, -2 to B': 5, 2
C:  -5, 1 to C': -5, -1
Reflect over x-axis: (x, -y) and Reflect over y-axis: (-x, y)