Find the magnitude and direction angle

u = 3(cos 253°i + sin 253°j)

Why do interests rates on loans to be lower in a weak economy than in a strong one

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.