Answer:
7.3 answer
Step-by-step explanation:
x=1.7
now
3x+2.2
3×1.7+2.2
7.3
 
        
             
        
        
        
9-5=4 Therefore f=4
Hope this helps
        
                    
             
        
        
        
Let

where we assume |r| < 1. Multiplying on both sides by r gives

and subtracting this from  gives
 gives

As n → ∞, the exponential term will converge to 0, and the partial sums  will converge to
 will converge to

Now, we're given


We must have |r| < 1 since both sums converge, so


Solving for r by substitution, we have


Recalling the difference of squares identity, we have

We've already confirmed r ≠ 1, so we can simplify this to

It follows that

and so the sum we want is

which doesn't appear to be either of the given answer choices. Are you sure there isn't a typo somewhere?
 
        
             
        
        
        
Answer:
12) 26x^2+22x+25
13) -15x^2-21x-11
14) x^2+32x+18
15) 9x^6+10x^5-15x^4+14
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
i need more information like what is the length width etc.
Step-by-step explanation: