Z would mean 0 considering they would both be the last
We will verify each options
option-A:

we can factor it



so, this is not irrational.........Answer
option-B:

Since, it can not be factored
so, this is irrational.........................Answer
option-C:

we can factor it



so, this is not irrational.........Answer
option-D:

we can factor it



so, this is not irrational.........Answer
Answer:
yes, it is a right angle triangle
Step-by-step explanation:
If it is a right angle triangle, then sq(14) + sq48) = 2500 = sq(50)
The answer to this question is x=4.
Answer:
300 days of work.
Step-by-step explanation:
He needs to work for 300 days for 2 dollars a day to get 600 dollars:
300 x 2 = 600