Astore received a delivery that consists of x boxes that weigh 30 pounds each and y boxes that weigh 20 pounds each. there are 64 total boxes in the delivery and they have a combined weight of 1400 pounds. enter the number of boxes in the delivery that weigh 20 pounds.

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.