2x^2
When x is equal to -3

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

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