Gfind the period n of x[n]. (b) let y[n] = x[n](u[n] − u[n − n]). find y [k] = df t(y[n]), k = 0, 1, . . , n − 1. hint: x[n] = 3e j0.8πn + 3e −j0.8πn .

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?