Look here https://www.varsitytutors.com/algebra_1-help/how-to-find-the-nth-term-of-an-arithmetic-sequence
        
             
        
        
        
Answer:
28/9
Step-by-step explanation:
We will have to convert the given question into improper fraction before solving
So let's solve the question
3 1/9
Can be written as 28/9 which is improper fraction
Since there's nothing that can be used to divide both the numerator and denominator
Then our final answer is 28/9
But in the case where the fraction can be divided we can actually solve further
 
        
                    
             
        
        
        
Dude I don’t think using this for an exam is it but ok
        
                    
             
        
        
        
Answer:
2√5
Step-by-step explanation:
The radius is the distance from the center to a point anywhere along the edge of the circle. To find the distance between these two points, use the distance formula.

 
        
                    
             
        
        
        
Answer:
   (x, y) = (2, 5)
Step-by-step explanation:
I find it easier to solve equations like this by solving for x' = 1/x and y' = 1/y. The equations then become ...
   3x' -y' = 13/10
   x' +2y' = 9/10
Adding twice the first equation to the second, we get ...
   2(3x' -y') +(x' +2y') = 2(13/10) +(9/10)
   7x' = 35/10 . . . . . . simplify
   x' = 5/10 = 1/2 . . . . divide by 7
Using the first equation to find y', we have ...
   y' = 3x' -13/10 = 3(5/10) -13/10 = 2/10 = 1/5
So, the solution is ...
   x = 1/x' = 1/(1/2) = 2
   y = 1/y' = 1/(1/5) = 5
   (x, y) = (2, 5)
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The attached graph shows the original equations. There are two points of intersection of the curves, one at (0, 0). Of course, both equations are undefined at that point, so each graph will have a "hole" there.