Find the circumference of a circle with a radius of 4 feet

Step-by-step explanation: If we are finding the circumference of a circle, we're finding the distance around the circle. To find the circumference of a circle, we use a formula which is as followed.

which means 2x the radius.

We can also represent this as followed.

which means we will take our diameter which is 8 because if we multiply our radius which is 4 by 2, we get 8.

Therefore, our circumference is going to equal the diameter which ends up being 8 feet multiplied by pi.

Circumference = .

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation: