For two events X and Y, P(X) =2/3, P(Y)=2/5, P(X/Y)=1/5, find the probabilities. 1. 2/25 2. 4/15 P(y U x)= P(y)•P(x)=

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

step-by-step explanation: 2

113.42

i hope that is right.

step-by-step explanation:

the value of x is 28.2