Answer:
2244 cm
Step-by-step explanation:
 The first first thing we must do is find the LCM of the following numbers
(51; 68) = 204.
This means that the first time they coincide is at 204.
Now, since his steps always coincide after 204
In Nick's case
Nick's 204 ÷ 51 = 4th step
and in the case of the father
204 ÷ 68 of his father = 3rd step.
Which means that in the 204 cm distance, there will be a total of 6 foot steps, except in the first 204 cm when your "initial" step is counted.
Replacing these values we have that the total distance will be:
67-1 (initial step) / (6 * 204) = 2244 cm
 
        
             
        
        
        
Answer:
False i think
Step-by-step explanation:
 
        
             
        
        
        
To find the solution, we use the substitution method. 
x+y=-1
<span>x-3y=11
</span>
x+y = -1-y
  -y       
x = -1-y
Now apply the value of x into the other equation.
x-3y=11
-1-y-3y = 11
Combine like terms
-4y -1 = 11
       +1    +1
-4y = 12
-4y = 12
-4y/-4 = 12/-4
y = -3
Now, apply the value of Y to one equation to find x.
y = -3
x -3 = -1
   +3   +3  
 
x= 2
Now we have the value for both, x and y.
x = 2
y =-3
Final answer: A. <span>(2, −3)</span>
        
             
        
        
        
Hello,
z=6+2i
||z||=√(6²+2²)=√40=2√10