If (a+b)2 = 9 and (a−b)2 = 49, what is the value of a2+b2?

Apath 3 m wide runs around the inside of a square park inside 60 m. find the area of the path. pls

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

What are the first 4 terms in the multiplication pattern given by the formula 2×4n