Answer:
Step-by-step explanation:instead, try making the subscripts and superscripts stand out:
                          n-1
a    =  a         * r
  n         n-1
Believe me, it's worth the extra work to do this!!
Given the sequence   -3, -6, -12, -24, you can easily see that the first term, 
a         is    -3.  The common factor is 2.  Note how (-3)*2=-6, and so on.
   1
So, a       = -3 and r=2.
         1
So the formula for this geometric sequence is  
                   n-1
a     =  -3*2
   n
 
        
                    
             
        
        
        
Answer:
9
Step-by-step explanation:
So first I created 2 distance forumlas and set them equal to each other

then I simplified them
 




when k = 9, the two distances are equal 
 
        
             
        
        
        
Answer:
O It has the same slope and a different y-intercept.
Step-by-step explanation:
y = mx + b
m = 3/8
b = 12
y = (3/8)x + 12
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Data in the table:  slope is the rise (y) over the run (x) between two points (assuming the data represent a linear line).
  Change in x and y between two points.  I'll choose (-2/3,-3/4) and (1/3,-3/8).
Change in y:  (-3/8 - (-3/4)) = (-3/8 - (-6/8))  =  3/8
Change in x:  (1/3 - (-2/3)) = (1/3+2/3) = 3/3 = 1
Slope = (Change in y)/(Change in x) = (3/8)/1 = 3/8
The slope of the equation is the same as the data in the table.
Now let's determine if the y-intercept is also the same (12).  The equation for the data table is y = (2/3)x + b, and we want to find b.  Enter any of the data points for x and y and then solve for b.  I'll use (-2/3, -3/4)
y = (3/8)x + b
Use (-2/3, -3/4)
-3/4 =- (3/8)(-2/3) + b
-3/4 = (-6/24) + b
b = -(3/4) + (6/24)
b = -(9/12) + (3/12)
b = -(6/12)
b = -(1/2)
The equation of the line formed by the data table is y = (3/8)x -(1/2)
Therefore, It has the same slope and a different y-intercept.
 
        
             
        
        
        
Answer:
A b c d 
Step-by-step explanation:
pertaining to or using a rule or procedure that can be applied repeatedly. Mathematics, Computers. pertaining to or using the mathematical process of recursion: a recursive function; a recursive procedure.
 
        
             
        
        
        
Answer:
3 and 4.
Step-by-step explanation:
3 * 2 *2 = 12.
So 3 and 4 have an LCM of 12.