What is covariance and variance statistics.

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

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

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?