Answer:
(D)(x-2)(x+2)
Step-by-step explanation:
As raízes do polinômio são 2 e -2, portanto sua forma fatorada tem que ser (x-x1)(x-x2) se x1=2 e x2=-2. Então:
p(x) = (x-2)(x+2)
Since 7 is greater than 5, the 9 gets rounded. It would be 12.0.
Answer:
C
Step-by-step explanation:
Oblique. The other three are used to describe a polyhedron. They are related by the following formula
V + F - E = 2.
Where
- V = number of vertexes
- F = the number of faces
- E = edges
For example consider a common cube, like a sugar cube.
It has 6 faces (f)
It has 8 vertexes (V)
It has 12 edges. E
6 + 8 - 12 = 14 - 12 = 2
Answer: Option a) 3
Step-by-step explanation:
The formula for calculating combinations is as follows
![nCr = \frac{n!}{r!(n-r)!}](https://tex.z-dn.net/?f=nCr%20%3D%20%5Cfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7D)
Where "n" is the amount of items in a set and you can choose "r" from them
3C1 reads as: The combination of 1 in 3. You have a set of 3 elements and choose 1 of them.
![n = 3\\\\r = 1](https://tex.z-dn.net/?f=n%20%3D%203%5C%5C%5C%5Cr%20%3D%201)
So :
![3C1=\frac{3!}{1!(3-1)!}\\\\3C1=\frac{3!}{1!*2!}\\\\3C1=\frac{3*2*1}{1*2*1}\\\\3C1=3](https://tex.z-dn.net/?f=3C1%3D%5Cfrac%7B3%21%7D%7B1%21%283-1%29%21%7D%5C%5C%5C%5C3C1%3D%5Cfrac%7B3%21%7D%7B1%21%2A2%21%7D%5C%5C%5C%5C3C1%3D%5Cfrac%7B3%2A2%2A1%7D%7B1%2A2%2A1%7D%5C%5C%5C%5C3C1%3D3)
Answer:
128.6
Step-by-step explanation:
I just did the math