Answer:
(y - 2)(y - 6)
Step-by-step explanation:
To factorise
Consider the factors of the constant term (+ 12) which sum to give the coefficient of the y- term (- 8)
The factors are - 2 and - 6
since - 2 × - 6 = + 12 and - 2 - 6 = - 8, hence
y² - 8y + 12 = (y - 2)(y - 6)
Answer:

Step-by-step explanation:
Given


Required

is calculated as:

Since it is a probability with replacement, we have:

For x > 1, we have:


For x < 2, we have:



becomes


The answers are 1, 2, and 4. Look at the parallelogram's angles to be sure.