Answer:
9 (approximately) 
Step-by-step explanation:
Approximate difference
= pH of basic solution - pH of acidic solution
= 11.2 - 2.4
= 8.8
= 9 (approximately) 
 
        
                    
             
        
        
        
Answer:
11.968
Step-by-step explanation:
 
        
             
        
        
        
Answer:
10<em>m</em>
Step-by-step explanation:
Your teacher probably told you the necessary fundamentals of monomials. So, I'll just teach you the things needed for this particular question.
10<em>m</em>^3/(10<em>m</em>)(<em>m</em>)
First, in the denominator, since that <em>m</em> are being multiplied and they are the same <em>terms, </em>their exponents add:
10<em>m</em> * <em>m</em>
10<em>m</em>^1 * <em>m</em>^1
1 + 1 = 2
10<em>m</em>^2
Then, since that <em>m </em>are now being divided, their exponents subtract:
10<em>m</em>^3 / 10<em>m</em>^2
3 - 2 = 1
10<em>m</em>^1
10<em>m</em>
 
        
             
        
        
        
Mass = density x volume 
1st we need to get the volume 
V = (25*10^-1) * (1.8) * (3) 
V = 13.5 cm3 
mass = 2.53 * 13.5 
mass = 34.155 kg 
        
             
        
        
        
Answer:
has infinite solution 
Step-by-step explanation:
(x,y)=(1-2a,a) where a is an element of any real number