Afootball field is 40 yards wide and 120 yards long. find the distance between opposite corners of the football field. show your work and explain your reasoning

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

Which of the following parabolas opens up?