yes, I'm pretty shure they do 
 
        
                    
             
        
        
        
The square root of 640 is 25.29
        
                    
             
        
        
        
Answer:
25 ft
Step-by-step explanation:
This is a right triangle, so we can use the Pythagorean theorem
a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse
15^2 + 20 ^2 = x^2
225+400= x^2
625 = x^2
Take the square root of each side
sqrt(625) = sqrt(x^2)
25 = x
 
        
             
        
        
        
Answer:
The Magazines each costed $8.30 and the books cost $13.80 for the amount of $41.50. and the 2 magazines and 5 books for $42.25 the 2 magazines is $21.12 for each and $8.45 for each book.
Step-by-step explanation:I got the answers by taking the total cost and taking the number of books or if it was a a magazine and I would divide it by lets just say you have 42.25 dollars you would divide that by 3 and you would do it for every item with the total cost.
 
        
             
        
        
        
Answer:
the factors of x^3-1 are 
Step-by-step explanation:
We need to find factors of x^3 -1

So, the factors of x^3-1 are 