8 in 10 in
A set of two concentric circles is
shown above. What is the area of
the shaded portion above?
(Actually help please no links that doesn’t help)

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

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.