Answer:
30e-0.12t
40e-0.18t
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
As we move from (0, 3) to (9, 0), we see x increasing by 9.  This is the 'run.'
At the same time, we see y decreasing by 3.  This is the 'rise.'
The slope of this line (graph) is m = rise / run = -3/9, or m = -1/3
Since we witness a decrease in y as we move from the first point to the second, we immediately suspect that the slope is negative.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Since perimeter,  and we know that P=2(l+w) then
 and we know that P=2(l+w) then 
The length will be 
Now 
 
        
             
        
        
        
Answer:
u  = - ( 9-6w)/2
Step-by-step explanation:
to  evaluate for u in the expression -2u+6w=9 is simply to look for a way such that we would express u in terms of w and other variables.
solution
-2u+6w=9
-2u = 9 - 6w
divide both sides by the coefficient of u which is -2
-2u/u = 9 - 6w/-2
u  = - ( 9-6w)/2
therefore the value of u when rearranged in the equation -2u+6w=9 is evaluated to be equals to
u  = - ( 9-6w)/2
 
        
             
        
        
        
The measures of x and y are 291.