HELP ME WITH PRE CALC

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

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.