Box A and Box B each contain blue and green pens only. Raphael pick a pen at random from box A and pulao pick a Pen at random from Box B. the probability that Raphael picks a blue pen is 2/3. the probability that both Raphael and pulao pick a blue pen is 8/15 b) find the probability that both raphael and pulao pick a green pen

1/15

Step-by-step explanation:

Picking from two different bags are independent trials

P(pulao picks Blue) × 2/3 = 8/15

P(pulao picks Blue) = 4/5

Raphael picks green: 1 - ⅔ = ⅓

Pulao picks green: 1 - ⅘ = ⅕

Both pick green: ⅓ × ⅕ = 1/15

answer: 1, 3 and 5 are correct

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq