From the definition of conditional probability,

and by the law of total probability,

In other words, each cell in the grid left of and above the total column and row represents the joint probabilities (e.g.

). So,
Answer:

Step-by-step explanation:
we know that
The standard form of the quadratic equation is equal to
we have

eliminate the parenthesis

group terms that contain the same variable

combine like terms

If they sleep 1 hour then they get 27 hours of sleep if they sleep 2 hours then they get 54 hours of sleep for 27 years I belive
Answer:
y = (x-7)/9
Step-by-step explanation:
y = 9x + 7
x = 9y + 7
x - 7 = 9y
y = (x-7)/9