Hence the correct answer is C) -23
Further explanation:
We have to put the values of m and n into both expression first separately and then multiply the answers.
Given expressions are:
![Exp\ 1:3m-4n\\Exp\ 2: n^2-m](https://tex.z-dn.net/?f=Exp%5C%201%3A3m-4n%5C%5CExp%5C%202%3A%20n%5E2-m)
The values are:
![m=5\\n=-2](https://tex.z-dn.net/?f=m%3D5%5C%5Cn%3D-2)
Putting the values in expression 1:
![3m-4n\\=3(5)-4(-2)\\=15+8\\=23](https://tex.z-dn.net/?f=3m-4n%5C%5C%3D3%285%29-4%28-2%29%5C%5C%3D15%2B8%5C%5C%3D23)
Putting the values of m and n in second expression
![n^2-m\\=(-2)^2-5\\=4-5\\=-1](https://tex.z-dn.net/?f=n%5E2-m%5C%5C%3D%28-2%29%5E2-5%5C%5C%3D4-5%5C%5C%3D-1)
Multiplying both expressions:
![(3m-4n)(n^2-m)=23* (-1)=-23](https://tex.z-dn.net/?f=%283m-4n%29%28n%5E2-m%29%3D23%2A%20%28-1%29%3D-23)
Hence the correct answer is C) -23
Keywords: Polynomials, Putting values in expressions
Learn more about polynomials at:
#LearnwithBrainly
Answer:
2. angle bisector splits into even halves
Step-by-step explanation:
that's all i can assist with sorry, proofs still confuse me!
Answer: The second graph
In all but the 3 graphs, the data is perfectly symmetrical. This means that the mean and the median would be the same.
However, in the second graph the data is skewed to the right. This means that the mean would also be skewed to the right due to the larger scores there. Using the median in this case would give a clearer picture of the data.