Answer:
The expected revenue of the tour operator is 985.
Step-by-step explanation:
There are two outcomes:
Either less than 21 tourists show up and the operator does not have to pay anything. Or 21 tourists show up and the operator has to repay 100.
Anyways, initially he gets the price of all the tickets sold. That is 21 each at 50, so
.
Then, we need to find the probability that all of the 21 tourists show up. In this case, we have to subtract 100 from the revenue.
Each tourist has a 0.02 probability of not showing up. This means that each has a 1-0.02 = 0.98 probability of showing up. So the probability P that all 21 tourists show up is
.
So, the expected revenue of the tour operator is

Rounded up, the expected revenue of the tour operator is 985.
So, the negative would be divided out to make it 3, then square both sides to get rid of the square root and get 9, then subtract 15 and you get -6. <span />
So Pythagorean Theorem is a^2+b^2=c^2
So, 12^2+16^2= 400
c=400, but you need to find c^2. so do the square root of 400, which is 20. so x=20
Lines 2 and four r perpendicular I think
Answer:
A. x^21
Step-by-step explanation:
This is because when multiplying with same number on the bottom, it will stay the same. So, when multiplying the bottom stays the same while you add all the exponents.
Hope this helps:)