There is a bag filled with 5 blue, 6 red and 2 green marbles. a marble is taken at random from the bag, the colour is noted and then it is replaced. another marble is taken at random. what is the probability of getting 2 blues?

25/169

Step-by-step explanation:

We have 13 marbles ( 5+6+2)

P (blue ) = blue marbles/ total marbles = 5/13

P (blue ,blue) = 5/13* 5/13  since the marble is replaced

                      = 25/169

s

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)