1. what's the area of a square computer screen with 21-inch sides?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

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.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents