Answer:
the third one
Step-by-step explanation:
........
Answer:

Step-by-step explanation:
[Shown in image]
Answer:

Step-by-step explanation:
We want to simplify:

This is the same as:

Cancel out the common factors to get;

This is the same as

Answer:
x=37
Step-by-step explanation:
You know all the angles in a triangle add up to 180.
Therefore, you add 72° and 71° which equals 143.
Then you subtract 180 and 143 which equals 36.
[72+71=143
180-143=37]
I hope this helps you!
In Binomial distribution, the expected value or mean is given by,
E(X) = np
where, p = probability of success and n=number of sample size.
E(X) = 100×0.4 = 40