CD was dilated around the origin by a scale factor of 2. The endpoints of the image are C ' (8, 2) and D ' (4, 8). What are the coordinates of the endpoints of the original line segment?

What’s the domain of this function? fast

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?