What is Ax in the system below?

4x-y=-3
-2x+y=5

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

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30