We know that
<span>Of all the rectangles having same area, square has the least perimeter
</span>
area of square=x²
where
x is the length side of the square
A=72 cm²
72=x²
x=√72-----> x=6√2 cm
Perimeter of square=4*x------> 4*(6√2)-----> P=24√2 cm
P=33.94 cm
the answer is
the perimeter is equal to 24√2 cm or 33.94 cm
        
             
        
        
        
Answer:
5.5 = x
Step-by-step explanation:
c(x)=x-2
3.5 = x-2
Add 2 to each side
3.5+2=x-2+2
5.5 = x
 
        
             
        
        
        
F (1) - f (-1)  / 1- (-1) = -1 -3 / 1+1 = -4/2 = -2 
/ are fractions the equal signs should break them up, hope this helps.
        
             
        
        
        
Not linear.
Do you want the graph? 
I'm confused...
        
             
        
        
        
Answer:
The temperature of metal after five years =  -18.96875 
Step-by-step explanation:
Given : Function 
where x is measured in hours 
Another function is added h(x)=-x-3
therefore, the resultant function f(x)=h(x)+c(x)

For x=5 



Therefore, The temperature of metal after five years =  -18.96875