If the probability is 0.75 that a marriage will end in divorce within 20 years, what is the probability that out of 3 couples just married, in the next 20 years (a) none will be divorced? (b) all will be divorced? (c) exactly 2 will be divorced? (d) at least 2 will be divorced?

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

1. perpendicular

2. parallel

3. perpendicular