What is the probability of selecting 3 black cards from a deck of 52 cards if each is replaced before the next is selected? What if they are not replaced?

3

step-by-step explanation:

look at the picture i have filled out a table for it. hope this .

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm