Natilie invested $200 in a savings account that earned 4% simple interest each year. She invested for two years without adding or taking money from her account.

A. How much INTEREST has she made? (I=PRT or Interest = Principal x Rate x Time

B. How much money does she have in total? Show work for both.

How many solutions does the nonlinear system of equations graphed bellow have?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

The value of cos 30° is the same as which of the following?