Find a parametrization of the ellipse centered at the origin in the xy-plane that has major diameter 16 along the x-axis, minor diameter 12 along the y-axis, and is oriented counter-clockwise. Your parametrization should make the point (8,0) correspond to t= 0.

x(t) =
y(t) =

(0 <= t <= 2π).

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

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?