Ellie's school is due west of her house and due south of her friend Tristan's house. The distance between the school and Tristan's house is 4 miles and the straight-line distance between Ellie's house and Tristan's house is 8 miles. How far is Ellie's house from school?

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

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)