When factoring to reveal the roots of the equation x² + 2x° - 9x- 18 = 0, which equations
can be used?
I. *'(x+2) - 9(x+2) = 0
II. x(xº - 9) + 2(x2 - 9) - 0
III. (x-2)(x² - 9) = 0
1) I and II, only
2) I and III, only
3) II and III, only
4) I. II and III

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

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x,y) t-2, 00 ro, 900(x, y)