These two polygons are similar.
100
40
20
30
2
χ.
x = [?]
Plz help

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

This is about circle theorems. someone asap : (