Atriangle with vertices at a(20, –30), b(10, –15), and c(5, –20) has been dilated with a center of dilation at the origin. the image of b, has the coordinates (2, –3). what is the scale factor of the dilation? 1/10 1/5 5 10

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample