Answer:
The answer is C
Sn=3(1-1/2^n)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
(x+1)^2 + (y+1)^2 = 49
Step-by-step explanation:
We can write the equation of a circle as
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center and r is the radius
(x- -1)^2 + (y- -1)^2 = 7^2
Simplifying
(x+1)^2 + (y+1)^2 = 49
 
        
                    
             
        
        
        
The diver's depth is 55.485 feet.
Option B represents the correct expression of the equation.
<h2>How do you express the given condition in an equation form?</h2>
Given that the total depth is 200 feet. the steady rate of the diver is 12 and one-third feet per minute. The total time taken by the diver is 4.5 minutes.
The above condition can be written in equation form is given below.
 Total Depth = Steady Rate per Minute  Total Time
 Total Time


Hence we can conclude that option B represents the correct form of the equation.
To know more, follow the link given below.
brainly.com/question/7161930.
 
        
             
        
        
        
Perimeter is the sum of all sides in the figure. Here, all six sides are equal in length so it would be:
p = 6 * side
p = 6 * 3.9
p = 23.4 cm
In short, Your Answer would be: 23.4 cm
Hope this helps!