What is the circumference of a circle with a diameter of 45 centimeters

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?