You roll two six-sided fair dice. a. Let A be the event that the first die is even and the second is a 2, 3, 4 or 5

1/3

Step-by-step explanation:

In the event that he first roll is even is 1/2 the probability of the 2nd one being 2 3 4 or 5 is 2/3

We multiply them together to get 2/6 or 1/3

So the probability is 1/3

i can answer this question sweetie!

step-by-step explanation:

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐