In a town with a population of 45,000 people, 60 percent of the voters are registered as democrats. In a sample of 1,500 voters randomly chosen for a survey, 70 percent were registered as democrats. Which statement best describes why the sample was NOT valid? a. The sample was chosen at random. b. The sample included many more people than was necessary. c. The sample was not representative of the voters registered as democrat. d. The sample did not include all the voters in the city.

Angular velocity = w = 16 revolutions per minute

w = 16 x 2π radians per minute = 32π radians per minute

Linear velocity = v = 240π inches per minute

Since the particle is moving in a circle along the fixed point(the center of the circle), the distance between the particle and the fixed point will be the radius(r) of the circle.

v = r w
r = v/w

So,

r = 240π/32π inches = 7.5 inches

Thus the distance from the fixed point to the particle is 7.5 inches. 

So, option B is the correct answer.