Without needing the distance formula
from 4,1 to 0,1, you move the "x" from 4 to 0, over the same "y" value of 1, so is just 4 units long, from the center to an endpoint, and the chord that stems from the center to an endpoint is the radius, so r = 4
 
 
        
        
        
Answer:
 20 TV need to be sold to qualify for the trip.
Step-by-step explanation:
Given: Sale price of each TV is $250
            Sales target to qualify for trip is $5000.
As given, T represent TV sold.
Now, finding the number of TV sold to qualify for the trip.
Forming an inequality for the number of TV sold to qualify for trip.
We know, Total amount of TV sold= 
∴ To qualify for trip: 
solving it by dividing both side by 250
∴

Hence, Angelica need to sell minimum 20 TV to qualify for the trip.
 
        
             
        
        
        
Answer:
$5
Step-by-step explanation:
15x18=270
1170-270=900
900/18=50
 
        
                    
             
        
        
        
Answer:
about 5.37
Step-by-step explanation:
Geometric mean is 
![\sqrt[n]{x_1(x_2)(x_n)...} }](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bx_1%28x_2%29%28x_n%29...%7D%20%7D) 
 
So square root of 12(2.4) 
square root of 28.8 is 
about 5.366563146
or 5.37