Dimitri is solving the equation x^2 - 10x = 21. which value must be added to both sides of the equation to make the left side a
perfect-square trinomial?
0
4
25
100

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

Check image and write the letter of the answer

In the diagram below de and ed are tangent to 0 which expression gives the measure of def