Answer:
The distributive property.
Step-by-step explanation:
The distributive property is when you distribute a number to different numbers in a parentheses. For example...
2*x would be 2x, and 2*4 would be 8. 
 
        
             
        
        
        
Step-by-step explanation:
slope: -4
y + 1 = -4(x - 0)
y + 1 = -4x + 0
y = -4x - 1
 
        
             
        
        
        
Answer:351.858377202
Step-by-step explanation:need to hurry sorry!!!!
 
        
             
        
        
        
Answer:
D. is the answer
Step-by-step explanation:
the side lengths always have to be equal so 6+8 = 10    and 10 is equal to 10 
that means it makes a right triangle
 
        
             
        
        
        
Answer:
Total laps = 10d
Step-by-step explanation:
Let c = Carl's laps
d = Daria's laps
e = Erin's laps
c = 3d
c = e/2
c + d + e = totals laps
We can insert 3d in place of c in the third equation
3d + d + e = total laps
Also, e/2 equals 3d
e/2 = 3d
Multiply both sides by 2
(e/2 = 3d)2
e = 6d
Insert the new e
3d + d + 6d = 10d = totals laps