An observer (o) spots a plane flying at a 35° angle to his horizontal line of sight. if the plane is flying at an altitude of 17,000 ft., what is the distance (x) from the plane (p) to the observer (o)?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

What is the value of x in the following equation. -x ^3/2 = -27

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5