This is the number of combinations of 2 from 23
 23C2   = 23! / 2! 21!
A quick way to do this   is  23*22 / 2   =   253
        
             
        
        
        
Yes because it is just milk and a substance in the milk
        
                    
             
        
        
        
Answer:
Base = 10 cm
Height = 60 cm
Step-by-step explanation:
The formula for the area of a triangle is  
 , where <em>b</em> is the length of the base of the triangle, and <em>h</em> is the length of the height of the triangle.
We know the area is 300, and since the height of the triangle is 6 times its base, we know that 
. We can plug in these values into our formula for the area of a triangle, which gives us the following equation to solve:



The base of the triangle is 10 centimeters.
Now that we know the base of the triangle, we can plug its value in to the original formula to solve for the height of the triangle, which gives us the following equation:



The height of the triangle is 60 centimeters.
 
        
             
        
        
        
Answer: 4.45935
Step-by-step explanation: 1 Square foot (sqft) is equal to 0.09290304 square meter (sqm). For example, to convert 100 square feet to square meters, multiply 100 by 0.09290304, that makes 9.290304 sqm is 100 sqft. Hope this helps.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
- (x+y-z)²= 4xy 
 - (x+y-z)²- 4xy = 0
 - (x+y-z)²-(2√x√y)² = 0
 - (x+y-z-2√x√y)(x+y-z+2√x√y) =0
 - [(√x-√y)²-z]*[(√x+√y)²-z]=0
 - (√x-√y)²-z = 0 or (√x+√y)²-z = 0
 
We have : z^(1/2)= x^(1/2)+y^(1/2) ⇒ √z = √x + √y ⇒ z = (√x + √y)²
so (x+y-z)²= 4xy