What is the approximate circumference of the circle shown below?

Step-by-step explanation:

Apply formula for the circumference of a circle.

The diameter is 13.8 cm.

43.4 cm

Step-by-step explanation:

Circumference of the circle = 2πr

r = radius, π =

f = diameter÷2

 =13.8 ÷ 2

 = 6.9

circumference =

                        =

                        = 43.37 cm or 43.4 cm

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

853.3

step-by-step explanation: