Which zero pair could be added to the function f(x)=x2+12x+6 so that the function can be written in vertex form?

What is the value of x in the diagram below?

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?