<u>Answer:</u>
The element is Chromium.
<u>Explanation:</u>
The atom has 24 protons and 12 neutrons.
We know that Cr has 24 number of protons, to the Chemical is Cr (Chromium)
Again, we know that the atomic number is the number of protons and the atomic mass is the sum of proton and neutron.
So, the atomic number is 24 and the atomic mass is (24+12)= 36
Therefore, the symbol is 
Answer:
C.
Step-by-step explanation:
C. (-7, 2), (-1, 3), (4,7), (7,2)
The values of x are not repeating, so this is a function, because for every x has only one corresponding value of y.
Answer:
The answer to your question is h (g(n)) = 3n² - 12n + 1
Step-by-step explanation:
h(n) = 3n + 1
g(n) = n² - 4n
Find (hg)(n)
h(g(n)) = 3( n² - 4n) + 1 substitution
h (g(n)) = 3n² - 12n + 1 expand
