The vectors A & B are in the xy plane where A is 3.2 m at 45 ° to the +x axis & B is 3 mat 280 ° to +x axis. Determine A. B

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Hi, can anyone show me how to do this problem? 100 points for this. in advance