F(x) = 2x² - 8x - 10.
This is a parabola open upward (since a>0) with an axis of symmetry = -b/2a:
a) axis of symmetry: x = -(-8)/(2*2) = 8/4 = 2. Then x = 2, which is the x component of the vertex
b) for x =  2, f(x) = f(2) = - 18 (component of y of the vertex)
c) VERTEX(2, - 18)
d) DISCRIMINENT: b² - 4.a.c = 64 - 4*2*(-10) = 144
        
                    
             
        
        
        
Answer:
π(8)²=64π
Step-by-step explanation:
Area = Pi times radius squared 
We know the Diameter is 16 so the radius must be 8.
8 squared = 64, then we multiply pi when you get your answer.
 
        
             
        
        
        
Answer:
rong answer is 18 
I think the right answer is 0.75
Step-by-step explanation:
 
        
                    
             
        
        
        
The equation is simply 8s where s is the length of a side. There are 8 sides. You are just adding the length of all 8 sides together to get the perimeter.
        
             
        
        
        
 The answer is:  10 x¹³ y¹⁰  . 
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1x^8 *  2y^(10) * 5x^5 = 
1* 2* 5 * x^8 * x^5 * y^(10) = 
10 * x^(8+5) * y^(10) =
10 * x^(13) * y^(10) = 10 x^(13) y^10 ;  write as: 
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          10 x¹³ y¹<span>⁰ .
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