Answer:
![a)\ \ \ 2x^2](https://tex.z-dn.net/?f=a%29%5C%20%5C%20%5C%202x%5E2)
Step-by-step explanation:
-Greatest common factor is defined as the greatest positive that divides a set of whole numbers evenly and without a remainder.
-Given the set ![2x^4\ \ and \ \ 4x^2](https://tex.z-dn.net/?f=2x%5E4%5C%20%5C%20and%20%5C%20%5C%204x%5E2)
we notice, that the GCF can't be an integer with the power of x greater than 2:
![=>\frac{2x^4}{2x^2}=x^2\\\\=>\frac{4x^2}{2x^2}=2\\\\GCF= 2x^2](https://tex.z-dn.net/?f=%3D%3E%5Cfrac%7B2x%5E4%7D%7B2x%5E2%7D%3Dx%5E2%5C%5C%5C%5C%3D%3E%5Cfrac%7B4x%5E2%7D%7B2x%5E2%7D%3D2%5C%5C%5C%5CGCF%3D%202x%5E2)
Since, there's no other positive integer than can evenly divide the set of quotients, the GCF is ![2x^2](https://tex.z-dn.net/?f=2x%5E2)
A decagon has 10 sides therefore it has 10 interior angles
Answer:
y= 2,471x - 230y because each day he travels the same average distance of 230 miles