a bag contains 8 red marbles and 12 blue marbles. jhon selects two marbles with replacement. (a) what is the probability of selecting two blue marbles? (b) what is the probability of selecting at least one red marble? (c) what is the probability of selecting a red marble first and then ablue marble? (d) what is the probability of selecting a red and blue marble? you have to use tree diagram and listing method

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

triangle and cube

step-by-step explanation:

i cant answer this, theres no table. sorry man

step-by-step explanation: