Answer:
6
Step-by-step explanation:
 
        
                    
             
        
        
        
(-2,3)(4,-1)
slope = (3 + 1)/(-2 - 4) = 4/-6 = -2/3
equation
y + 1 = -2/3(x - 4)
        
             
        
        
        
Hello from MrBillDoesMath!
Answer:
Solutions: x = +\- 5i or x = +\- sqrt(5) 
Discussion:
Factor x^4 - 25:
x^4 - 25     = (x^2+5) (x^2-5)                              =>  factor x^2 - 5
x^4 - 25 =   (x^2+5)(x + sqrt(5)) (x - sqrt(5))       => factor x^2 + 5
x^4 = 25  = (x +5i)(x-5i) (x + sqrt(5)) (x - sqrt(5))   
Hence the solutions are
x = +\- 5i and x = +\- sqrt(5) 
Thank you,
MrB
 
        
             
        
        
        
8 1/4 appe slices is the answer