Answer:

Step-by-step explanation:
x is the center of the circle.
the chord of length 12 can be splitted into two parts of 6 length each.
since the radius does not change when it touches another end of the circle, we can safely calculate our radius to be the hypotenuse of the triangle formed by the length of the chord and 3.
The explanation is given in the picture
 
        
             
        
        
        
5.25 gallons is your answer
        
             
        
        
        
Usual distance michiko runs= d miles
Time=t
normal speed= r₀
speed today= r₁
According to the question,
r₀= d/t
r₁= d+9/t+70.
        
             
        
        
        
The range will be all ur y values...just as the domain is all the x values
so ur range is {5,6 }...notice that even though they repeat, u only have to list them once
        
                    
             
        
        
        
Answer:
Vertex: (13/6,-133/12)
Axis of symmetry: x=13/6
y-intercept: y=3
Step-by-step explanation: