Suppose the least-squares regression line for a set of data has slope 72.4. now suppose we remove a point from the data, compute the least-squares regression line, and find that the new slope is 8.7. the point removed would be considered

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

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.