Ineed somebody to solve the multiple choice questions for the california real estate exam ?

Hurry: the angle measures associated with which set of ordered pairs share the same reference angle? (-square-root 3/2, 1/2) , (-1/2, -square-root 3/2) (1/2, -square-root 3/2) , (-square-root 3/2, 1/2) (-1/2, -square-root 3/2), (1/2, square-root 3/2) (square-root 3/2, 1/2) , (1/2, square-root 3/2)

What is the term eccentricity a measure of?

Which of the following tools can be used to determine humidity? select all that apply. barometer: hygrometers: anemometer: hair: thermometer