Two trains A and B moving on a horizontal trackwith velocities Va=(40+¡30)km/h and Vb=(25-¡50)km/h. Determine in polar form the velocity of A relative to B.

What is the size of the matrix resulting from

How do you summarize data in a two-way frequency table?

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?