Which number is an irrational number? square root 9/16, 9/31, square root 9/31, 0.6 repeating 6

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.

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry