Atable with 4 legs will sometimes wobble if one leg is shorter than the other three, but a table with three legs will not wobble. which postulate substantiates this fact

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.