X^2 = 16/9
X = 4/3
Length of X is 1 1/3 inches
Answer:
D
Step-by-step explanation:
let y = f(x), that is
y = ![\frac{2x-3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B2x-3%7D%7B5%7D)
Rearrange making x the subject
Multiply both sides by 5
5y = 2x - 3 ( add 3 to both sides )
5y + 3 = 2x (divide both sides by 2 ) , then
x = ![\frac{5y+3}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B5y%2B3%7D%7B2%7D)
Change y back into term of x, hence
(x) =
→ D
For this case we must simplify the following expression:
![x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2](https://tex.z-dn.net/?f=x%20%5E%202-3xy-5xy-7y%20%5E%202%20%2B%204x%20%5E%202%20%2B%208y%20%5E%202)
We must add similar terms taking into account that:
- Equal signs are added and the same sign is placed.
- Different signs are subtracted and the major sign is placed.
![(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=%28x%20%5E%202%20%2B%204x%20%5E%202%29%20%2B%20%28-%203xy-5xy%29%20%2B%20%28-%207y%20%5E%202%20%2B%208y%20%5E%202%29%20%3D%5C%5C5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Thus, the simplified expression is:
![5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Answer:
![5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Answer:It means turning around until you point in the same direction again. Other ways of saying it: "Doing a 360" means spinning around completely once (spinning around twice is a "720").
...
A full rotation is 360 degrees.
Step-by-step explanation: