What is the value of b 2 - 4ac for the following equation? 2x^2 3x = -1 0 1 17

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

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?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.