An airline collects data on the number of trips families take in a given year. The following table is the probability distribution for X, the number of trips a family will take in a year. xn 0 1 2 3 4 pn 0.1 0.5 0.2 0.15 0.05 2400 families are in the company’s database as having subscribed to their email list. How many trips can the company expect out of these 2400 families?

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

I've been working on this for a few days and i just don't understand, it's due in a few hours. you.the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case.part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?

The graph represents f(x)=[x]+3. what is f(-2.2)?