In the accompanying diagram, ĀB || CD, EF intersects ĀB at E and CD at F, and GH intersects AB at G and EF at H.
If mLEGH = 40, mGHE = 80, and mZEFD = x, what is
the value of x?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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 equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()