Carl has three lenghts of cable, 5/6 yard long,1/4

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?