The joint moment generating function of two random variables x and y is given as follows: m_{x, y}(s, t)=0.1+0.2e^{s}+0.3e^{t}+0.4e^{2s+t } calculate e[2x^2 â€" y].\

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.

What is the rate for one gallon of gasoline

Which expression gives the exact value of x?