Answer:
D???
Step-by-step explanation:
D???? 
stand·ard de·vi·a·tion
/ˈstandərd ˌdēvēˈāSHən/
nounSTATISTICS
a quantity calculated to indicate the extent of deviation for a group as a whole.
 
        
             
        
        
        
Answer:
cracked at fortnight
e my guy
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a.
b.
Step-by-step explanation:
We are given that 
Speed of red bike, v=24 km/h
Speed of blue bike, v'=12km/h
Distance of red bike when t=0
=10 km north
Distance of blue bike when t=0
=6km east 
a. We have to find the expression of distance of red bike from Lawrence.

Let t be the time taken by red bike
Distance of red bike from Lawrence is given by


b.
Distance of the blue bike from Lawrence


 
        
             
        
        
        
Answer:
4over27
Step-by-step explanation:
8over9 divided by 6 equals 8over54 which simplifies to 4over27
 
        
                    
             
        
        
        
Answer:
x^2 +y^2 = 49
Step-by-step explanation:
The equation for a circle is 
(x-h)^2 + (y-k)^2 = r^2  where (h,k) is the center of the circle and r is the radius
( x-0)^2 + (y-0)^2 = 7^2
x^2 +y^2 = 49