Answer:
60cm^2
Step-by-step explanation:
We assume that is a circumscribing quadrilateral, rather than one that is circumscribed. It is also called a "tangential quadrilateral" and its area is ...
  K = sr
where s is the semi-perimeter, the sum of opposite sides, and r is the radius of the incircle.
  K = (12 cm) (5cm) = 60 cm²
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A quadrilateral can only be tangential if pairs of opposite sides add to the same length. Hence the given sum is the semiperimeter.
 
        
             
        
        
        
Answer:
 51,51 and 78
Step-by-step explanation:
3x+9=4x-5
3x=4x-14
-x=-14
 x=14
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given: Marisa bought four bottles
           Price of each bottle is $0.95.
Solving with the factors as given to find the total cost paid by Marisa.
Total cost= 
∴ Total cost paid by Marisa is $3.8.
As given to write an equation with the same product as the total cost but different factors.
∴ Lets assume the number of bottles bought by Marisa be "5" and cost of each bottle be "x"
We already find the total cost she paid is $3.8.
Now, writing an equation with different factors, as total cost remain same.

Dividing both side by 5
we get x= $ 0.76
∴ The required equation is 
 
        
             
        
        
        
Answer:
(x + 2) ^2 (x - 2) ^ 2 so A is the answer. 
Step-by-step explanation: