Hi!
1.)
a:A u B=

(The same elements are written once.)
b:A u C

c:B u C

Note:I used dots to mean commas .
Good work!
Answer:

Step-by-step explanation:
Given


Required
The probability model
To do this, we simply calculate the probability of each container.
So, we have:





So, the probability model is:

I think this is the Answer
8.235*10^-4
The answer to your question would be w=9
Answer:
153.94 mm^2
Step-by-step explanation:
area of base = area of a circle = Pi * radius squared
radius squared = 49
area of base = Pi * 49
area of base = 153.94