Suppose the line of best fit is being found for some data points that have an r-value of 0.553. if the standard deviation of the x-coordinates is 3.996, and the standard deviation of the y-coordinates is 6.203, what is the slope of the line to three decimal places?

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.