Answer:
50.29 cm
Step-by-step explanation:
Given:
Diameter of each doughnut = 8 cm
To find: circumference of each doughnut
Solution:
Circumference refers to the boundary of a geometric figure.
A doughnut has the shape of a circle.
Let r represents the radius of the circle.
Diameter of each doughnut = 8 cm
Radius of each doughnut (r) = Diameter/2

Circumference of each doughnut 
Put 
So, circumference = 

Answer:
Range: y ≥ 4
Step-by-step explanation:
Range is the y value
y = (x-2)^2 +4
The smallest the squared term can be is zero
y = 0 +4
The smallest y can be is 4
y ≥ 4
First question:. A and D. Second question: B and C .
Answer:
m=-4/5 and b=1
Step-by-step explanation:
The original formula is y=mx ±b and when asked to find those they are placed in the formula.