Prove that for every two positive integers a and b that
\((a+b)(\frac{1}{a}+\frac{1}{b}) > or = 4\)

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite