X=4 because 4 is half of 8 and the x side is half of the side with a length of 8.
Answer:
A
Step-by-step explanation:
Answer:
See below.
Step-by-step explanation:
1)
So we have:
![\exists x\in\mathbb{N},y\in\mathbb{Z}|x^2=y^2](https://tex.z-dn.net/?f=%5Cexists%20x%5Cin%5Cmathbb%7BN%7D%2Cy%5Cin%5Cmathbb%7BZ%7D%7Cx%5E2%3Dy%5E2)
This can be interpreted as:
"There exists a natural number <em>x</em> and an integer <em>y</em> such that x² is equal to y²."
2)
So we want even numbers are in the set of integers.
![\{2n:n\in\mathbb{Z}\}\in\mathbb{Z}](https://tex.z-dn.net/?f=%5C%7B2n%3An%5Cin%5Cmathbb%7BZ%7D%5C%7D%5Cin%5Cmathbb%7BZ%7D)
This is interpreted as:
"The set of even numbers (2n such that n is an integer) is in the set of integers"
Answer:
6
Step-by-step explanation:
set x=0 and solve
(0+4)(0+2)=y
y=6