Last year, wind turbines along a hilly ridge had an average output of 440 kilowatt hours per year. The turbines were upgraded, and now their average annual output is 45% more. What is the new average yearly output? please help

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.

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Factor and solve to find roots x squared -x - 90 =0