Bill has a bag that contains 10 clear marbles and 5 blue marbles. He randomly draws 2 marbles, one after the other. What is the probability that the first marble is clear and the second marble is blue if the marbles are drawn (a) without replacement?
(b) with replacement?

answer: 25 is the correct answer

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it