Answer:
1. 3x + 6
2. or 7.071
3.
Step-by-step explanation:
1. 3 consecutive even integers
If the first is x, the 2nd is x+2, and the 3rd is x+4
x + (x+2) + (x+4)
= 3x + 6
2. The equation for circumference is
If the diameter is
The the radius is half of that.
So the circumference is
3. To divide we multiply by the reciprocal. So flip the fraction that we are dividing by.