Answer:
This would be Helium(He)
Step-by-step explanation:
Its Helium because the bohr model in the picture has 2 electrons.
On the periodic table, it says that Helium has 2 protons which are also equal to electrons
Answer:
Let a and b integers and suppose that are even numbers. Then, exist integers k and m such that 
and 
.
Then,
Since, k and m are integers then n=k+m is an integer. Then, since a + b is of the form 2 by an integer n, then a + b is an even number.
Answer:
1/3
Step-by-step explanation:
60 minutes in an hour
2 hours = 120 mins
40/120= 33.3%
also known as 1/3
You set up the problem correctly, just keep going.
Expand out your expression:
2x(3x-9) + 4x(x+13)
= 6x^2 -18x + 4x^2 + 52x
= 10x^2 +34x
Remember that the above expression is the area, so it is equal to 24.
10x^2 + 34x = 24
10x^2 + 34x - 24 = 0 (divide by 2)
5x^2 + 17x - 12 = 0
Done.
Answer:
I'm not sure but if you want the answer download Socratic it will definitely help you find the answer.
