Answer: 
Step-by-step explanation:
 For this exercise you need  to use the following formula for calculate the area of regular polygon:
 
 Where is "s" the length of any side, "n" is the number of sides.
 Int this case you know that it is regular pentagon, which means that it has five sides. Then you can identify that the values of "n" and "s":
 
  Therefore, substituitng values into the formula, you get that the area f the pentagon is:
 
 
        
             
        
        
        
Answer:
8/9, 4/5, 2/5, 1/3, 3/10
Step-by-step explanation:
2/5 = 0.4 8/9 = 0.888 4/5 = 0.8 1/3 = 0.333 3/10 = 0.3
 
        
             
        
        
        
Answer:
Alternative C is the correct answer
Step-by-step explanation:
The first step is to determine the composite function;
![f[g(x)]](https://tex.z-dn.net/?f=f%5Bg%28x%29%5D)
![f[g(x)]=cos[cot(x)]](https://tex.z-dn.net/?f=f%5Bg%28x%29%5D%3Dcos%5Bcot%28x%29%5D)
We then employ a graphing utility to determine the range and the domain of the new function.
The range is the set of y-values for which the function is defined. In this case it is;
![[-1,1]](https://tex.z-dn.net/?f=%5B-1%2C1%5D)
On the other hand, the domain refers to the set of the x-values for which the function is real and defined. In this case; it is the set of real numbers x except x does not equal npi for all integers n.
 
        
             
        
        
        
I hope this helps you 
x= -2
h (-2)= 3. (-2)+1
h (-2)=-6+1
h (-2)= -5
        
             
        
        
        
Answer:

Step-by-step explanation:
we know that
The general equation of a quadratic function in factored form is equal to

where
a is a coefficient of the leading term
x_1 and x_2 are the roots
we have

substitute

Applying the distributive property convert to expanded form




therefore
