Simplify the expression and combine like terms 2 (r + 6) + 3r + 4 =

The number of possible solutions of a polynomial can be found by looking

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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.