Answer:
Hello!
The statement is "if x and y are odd integers, then x + y is even"
and we want to prove it by contradiction.
Suppose that we have x and y odd numbers, and suppose that his addition is odd.
We know that an odd number can be writen as (2n +1) (and a even number can be written as 2n) where n is an integer number; then:
x = (2k + 1) and y = (2m + 1)
and x + y = j, where j is also a odd number, then j = (2h + 1)
then:
2k + 1 + 2m + 1 = 2h + 1
2(k + m) + 2 = 2h + 1
2(k + m) +1 = 2h
if k and m are integers, then k + m is also an integer, suppose that k + m = g
then 2g + 1 = 2h
this says that in odd number is equal to an even number, then we have a contradiction, and the addition of two odd numbers cant be an odd number.
Answer:
The working principle of the computer system. Computers do the work primarily in the machine and we can not see, a control center that converts the information data input to output. This control center, called the central processing unit (CPU), How Computers Work is a very complex system.
Explanation:
The purpose of the operating systems is to provide an interface between the user and hardware. It's mange all resources, for example; memory, processors, and disk space. It's also mange how to file and store data in a computer system.
The application is electricity in the home. Every light bulb, appliance,
and wall-outlet in your house is in parallel with all the others.
If any electrical devices in your house were in series, then whenever
you turned any of those off, they would ALL go off.
Also, the ones that needed the least power, like a night light, would get
the most, and the ones that needed the most power, like the refrigerator,
would get the least.
Answer:
B is the correct answer because that's what I do
