Answer:
Step-by-step explanation:
The formula of a perimeter of a triangle:
We have:
Substitute:
Combine like terms:
The median of a random variable X is a number µ that satisfies

Find the median of the exponential random variable with parameter λ.
Answer:
Where x represent the successes and n the total of marbles and replacing we got:
Step-by-step explanation:
For this case we have the following types of marbles
3 white, 3 yellow, 2 black
The total of marble for this case are:
And we have a total of 3 yelow marbles. We can apply the definition of probability given by:
Where x represent the successes and n the total of marbles and replacing we got:
Answer:
70 ish
Step-by-step explanation:
A=24 botton and 20x4 for the side.
B=120