Represent 42 divided by 6 = 7 using subtraction

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

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.