Which is a zero of quadratic function f(x)=9x^2-54x-19? x= 1/3 x= 3 1/3 x= 6 1/3 x= 9 1/3

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

In the rectangle below ac=30 units what is de

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem