X cm 2 cm
В.
A
C
x cm
The area of square ABCD is 7 cm?.
Show that x2 + 4x = 3
2 cm
+
A
D
Look at pic

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?