A bag contains 7 red marbles, 2 blue marbles and 3 green marbles. If two marbles are drawn out of the bag, what is the exact probability that both marbles drawn will be blue?

Therefore the probability of getting both  blue  marbles is .

Step-by-step explanation:

Probability : The ratio of favorable outcomes to the total outcomes.

Given that a bag contains 7 marbles which are red in color, 2  marbles which are blue in color and 3  marbles which are green in color.

Total number of  marbles = (7+2+3) = 12

The probability of getting a blue on first drawn is

Now the number of blue marbles = (2-1)= 1 [ since 1 blue marbles is drawn]

Total number of  marbles = (12-1) =11

The probability of getting a blue marble on second drawn is

Therefore the probability of getting both  blue  marbles is

i believe it is the square root of 122 because when you turn it on it's side, to where the 5 inches is on the bottom, it looks like it is the same length.