E = {1, 2, 3, 4, 5, 6, 7, 8, 9 A= (1, 3, 4,8,9)
B = 2,4,9
a) Complete the Venn
diagram

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?