Answer:
X^5+3x^4+81x+ 243
Step by step: 
X^4*x=x^5
X^4*3=3x^4
81*x=81x
81*3=243
        
                    
             
        
        
        
Answer:
   f(r) = 2πr
Step-by-step explanation:
You know the formula for circumference in terms of radius is ...
   C = 2πr
You are being asked to write this as a function named "f". That will be ...
   f(r) = 2πr
 
        
                    
             
        
        
        
Answer:
14.29% probability that Marlon's friend will think of the number 9
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this problem, we have that:
There are 7 numbers from 5 to 11(5,6,7,8,9,10,11)
9 is one of them
So

14.29% probability that Marlon's friend will think of the number 9
 
        
             
        
        
        
Answer:
X=8
Step-by-step explanation:
Opposite side angles on the transversal are congruent.
SO 6x-2=46
46+2=48
48/6=8
X=8
 
        
             
        
        
        
Dollars per gallon because the dependent quantity is the dollars 
Dollars is the dependent quantity because the amount you pay depends on how many gallons you've pumped.