Answer:
a= -1
b=-9
c=9
d=3
e=3
f=2
g=1.5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
<h2>The circumference is multipled by 4.</h2>
Step-by-step explanation:
The formula of an area of a circle"

The formula of a circumference of a circle:

The area multipled by 16:

The radius has increased fourfold, therefore:

The circumference is multipled by 4.
You can calculate the area and check the circumference:

Calculate the radius:
 <em>divide both sides by π</em>
             <em>divide both sides by π</em>

Calculate the circumference of both circles:



 
        
             
        
        
        
check the picture below.
recall that in a square, all four sides are equal, therefore b = a.
so the perimeter is then 6√2 + 6√2 + 6√2 + 6√2, or 24√2.
 
        
             
        
        
        
Given that a = 2, b = 3, and c = 4.
To evaluate ab+c, we will plug given values as shown below
ab+c 
=2*3+4
=6+4
=10
Hence final answer is 10.