Answer:
   140
Step-by-step explanation:
When working HCF and LCM problems, I like to think in terms of this little diagram:
   (a [ b ) c]
It shows me one of the numbers is ab, the other is bc, the HCF is b and the LCM is abc. "a" and "c" must be relatively prime for "b" to be the HCF.
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Here, we're given ...
   b = 20
   ab = 320
   abc = 2240
Then ...
   c = abc/(ab) = 2240/320 = 7
   x = bc = 20(7) . . . . . . equivalently, x = (abc·b)/(ab) = (2240·20)/320
   x = 140
 
        
             
        
        
        
Answer:c
Step-by-step explanation:
when you set (x-6) and (x-1) to zero you get 6 and 1
 
        
             
        
        
        
Answer:
$6.75
Step-by-step explanation:
First you find 25% of $9----> 2.25 and then you subtract that from 9---->         9-2.25=<u>6.75</u>
 
        
                    
             
        
        
        
Answer:
The first option .
Step-by-step explanation:
m must not be zero
 
        
                    
             
        
        
        
analytic geometry, also called coordinate geometry, mathematical subject in which algebraic symbolism and methods are used to represent and solve problems in geometry. The importance of analytic geometry is that it establishes a correspondence between geometric curves and algebraic equations.