Find the sum of these polynomials.
(x2 + x + 9) + (7x2 + 5) =
A. 8x^2 + x +4
B. 8x^2+x+14
c. 7x^2+x+4
D. 7x^2+x+14

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.