Answer:
B
Step-by-step explanation:
Yes, it is. The set of rational numbers is closed for all the four operations, so x+y, x-y, x*y and x/y are rational too. And it is easy to demonstrate. A rational number can be expressed as a fraction of two integers. So, x can be expressed as a/b and y as c/d. Hence x+y = a/b + c/d = (ad+bc)/bd, which, as fraction of two integers, is rational.
Answer:
maybe u should have paid attention in class buddy
Step-by-step explanation:
L
Solve 5+8 and get 13(3+x) then muliply 13×3 and 13×X... you will end up with 39+13x
Answer:
Step-by-step explanation:
D.
Explanation
I saw this answer in a different question today.
Moreover, 1n + 0.25n = 1.25n