Step-by-step explanation:
Find P(X=4)
By doing 4C4* (0.15)^4*(0.85)^0
Find P(X=1, 2,3) by doing 1- Ans you get for P(X=4)
Step-by-step explanation:
x+y=12
3×+y=20
×=12-y
3 (12-y)+y=20
36-3y+y=20
36-4y=20
-4y=20-36
-4y= -16
y =16÷4
y=4
×+y=12
×+4=12
×=12-4
×=8
therefoer;y=4,x=8
Answer:
x=6
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
The angles of a triangle must always add up to 180 degrees.
90 + 60 + 60 = 210 degrees.
Therefore it would not be possible to draw a triangle with these values.