sandralbooker sandralbooker 03-09-2020 Mathematics contestada Which of the following must be true? А If (d) = 58 then d = 58 only B If yl = 11 then y = 11 and y = -11 C If [x] = 18 then r = -18 only D If [n] = -49 then n = -49 and n = 49
