.675 square units is the answer
 
        
             
        
        
        
Answer:
Approximately 3 grams left. 
Step-by-step explanation:
We will utilize the standard form of an exponential function, given by: 

In the case of half-life, our rate <em>r</em> will be 1/2. This is because 1/2 or 50% will be left after <em>t </em>half-lives. 
Our initial amount <em>a </em>is 185 grams. 
So, by substitution, we have: 

Where <em>f(t)</em> denotes the amount of grams left after <em>t</em> half-lives. 
We want to find the amount left after 6 half-lives. Therefore, <em>t </em>= 6. Then using our function, we acquire: 

Evaluate: 

So, after six half-lives, there will be approximately 3 grams left. 
 
        
             
        
        
        
Answer:
D(2,2)
Step-by-step explanation:
The diagonals of a parallelogram gram bisects each other.
Therefore E is the midpoint of AD.
Let the coordinates of D be (a,b).
By the midpoint rule:

This implies that:

This implies that:


 
        
             
        
        
        
27- It goes down 24 points.
28- 12, just divide 60 by 5
PLEASE BRAINLIEST
 
        
                    
             
        
        
        
when a=4 and b=3,
3.14((4 x 2)+ (4 x 3)) = 3.14(8+12) = 3.14 x 20 = 62.8