A bag contains eight red marbles and four blue marbles. You randomly pick a marble and then pick a second marble without returning the marbles to the bag. The first marble is red and the second marble is blue.

show work please thanks!

14/33

Step-by-step explanation:

eight red marbles and four blue marbles = 12 total

P(red) = red/total = 8/12 = 2/3

No replacement

seven red marbles and four blue marbles =11 total

P(blue) = blue/total = 7/11

P(red, no replacement, blue) = 2/3*7/11 = 14/33

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