(Please help!!) For parallelogram ABCD, what is the length of CD?

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.

Me asap! what is the slope of this line? enter your answer in the box.

The reflexive property of congruence lets you say that ∠pqr ≅