Un barco sale de un puerto con direccion norte y una segunda embarcacio sale del mismo muelle con direccion sureste determina el angulo que se forman las direcciones del los dos buques

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab