Answer:
es facil estupido
Step-by-step explanation:
primero vas uno al derecha y quatro pariba
(y+x)^2=(x+y)^2
so
(x+y)^2+(x^2-2xy+y^2)
= (x^2+2xy+y^2)+(x^2-2xy+y^2)
= x^2+2xy+y^2+x^2-2xy+y^2
= x^2+x^2-2xy+2xy+y^2+y^2
= 2x^2+2y^2
if u want to simplify it more then it will be written as: 2(x^2+y^2)
Answer:
Step-by-step explanation:
divide by 3: x^2 = 4
Think you can finish that off now?
Answer: $45
Step-by-step explanation:
As for the information provided,
The weekly rate of wages = $615
In a year there are 52 weeks, thus annual wages = $615 52 = $31,980
But since one week is an unpaid leaves, there will be no wages for such week.
Accordingly, annual wages shall be reduced by wages of a week = $31,980 - $615 = $31,365
Note: When the leaves are paid leaves wages are earned for such period.
Also the annual expected expenses = $31,320
Therefore, expected surplus at year end = $31,365 - $31,320 = $45
The probability you're asked to find is
where
is the event that either event occurs (A, B, or both), and
is the event that both events occur.
Recall that
which means
You're told that
,
, and (if I'm reading the diagram correctly)
.
So,
Another way of seeing this is that the event A consists of the regions "A not B" and "A and B". So the probability that "A not B" occurs is
Similarly, B consists of "B not A" and "A and B", so you have
So the probability that A or B, but not both, occur is