An observer (o) spots a plane flying at a 55° angle to his horizontal line of sight. if the plane is flying at an altitude of 21,000 ft., what is the distance (x) from the plane (p) to the observer (o)?

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

Use the squared identities to simplify sin^2x cos^2x