Write a number sentence that shows why the associative property does not work with subtraction

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

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate