Answer:
(3+(3)/(5))(3-(3)/(5))
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: (4,2)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D: 25 miles
Step-by-step explanation:
Pythagorean Theorem: 

36^2 + b^2  =  39^2
1,296 + b^2  =  1,521
b^2  =  225
b  =  25
 
        
             
        
        
        
In a square all 4 sides are equal, so when you cut it along the diagonal to make a triangle, both the base and the height of the triangle would be the same.
The area of a triangle is found by the formula 1/2 x base x height
Since the base and height are the same the formula becomes Area = 1/2 x S^2 ( where S is the length of a side).
 The area is given as 0.72 square units.
 Now you have 0.72 = 1/2 x S^2
First multiply both sides by 2:
1.44 = S^2
To find S, take the square root of both sides:
 S = √1.44
S = 1.2
 
The side length is 1.2 units.
 
        
             
        
        
        
Answer:
Ok im, not 100% sure but the answer is for 1-10, 2-20, 3-40,  4-40