A triangle with vertices at A(-1, 1), B(-2, 1) and C(-1, 4) is rotated 180 degrees. Determine the coordinates of the image of B' and C'.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.