Answer:
aₙ = 1/2 x aₙ₋₁     n≥2 
Step-by-step explanation:
aₙ = 1/2 x aₙ₋₁     n≥2  
a₁ = 64
a₂ = 1/2 x 64 = 32
a₃ = 1/2 x 32 = 16
 
        
             
        
        
        
Answer:
42 Blades 
Step-by-step explanation:
So 6 blades on each windmill 
6=1 Windmill 
so 7 windmills 
so do 
7 times 6 = 42 Blades 
 
        
                    
             
        
        
        
Good idea to look up the formula for "surface area of a sphere" and to write it down for later reference.  It is A=4 pi r^2, where r is the radius of the sphere.
If the given sphere has a diameter of 7 cm, what is the radius of this sphere?
Write your answer inside the parentheses, below:
Sphere surface area = 4 pi (r)^2, or (in this case), A = 4(3.14)(        )^2
        
             
        
        
        
The third one duhhh, Ik this stuff
        
             
        
        
        
The answer is A; a=50t cause if you were to put 0, you would get 0 which is the first point, if you put in 1 you get 50, if you put in 2 you get 100 and so on.