At what speed does the pitcher's arm rotation in degrees-s?

Do,h = (7, 9) (14, 18) the scale factor is

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Find cot x if sin x cot x csc x = √2