The correct answer will get 20 points and which of the sets of ordered pairs represents a function? a = {(−5, 5), (−2, 2), (2, −2), (5, −5)} b = {(4, 2), (3, −2), (9, 4), (11, −3)} only a only b both a and b neither a nor b

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Find the area of the triangle shown 3 by 6

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?