Answer:
<h3>27</h3>
Step-by-step explanation:
Given 
f(x)= x^2-2 and g(x) = 4f (x)-1
g(x) = 4(x^2-2) - 1
g(x) = 4x²-8-1
g(x) = 4x²-9
Get g(-3):
g(-3) = 4(-3)²-9
g(-3 = 4(9) - 9
g(-3) = 36-9
g(-3) = 27
 
        
             
        
        
        
I'm guessing you're saying that the sprinkler is shooting out 23 ft of water.
This would be the same as the radius of a circle, and we're trying to find the area. Use the formula.

Plug in what we know:


This is what they could be looking for, an exact value. If they want an approximation, we can input 3.14 for Pi:

 
 
        
        
        
Hope this helps! 
https://www.omnicalculator.com/math/radius-of-sphere
        
                    
             
        
        
        
Answer:
A) a variable 
Step-by-step explanation:
A) a variable    a variable changes value  7 does not change
B) an expression    does not have an equal sign  7 does not have an equal sign
C) a constant  7 is constant, it does not change  
D) a term  is a group of numbers and variables with no operators
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
