You plan to paint the outside of this barn, including the roof, but not the floor. Which calculation will help you best decide how much paint you will need?

What is the equation of the graph below? y=sec(x)-4

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

X+ y = 5 ; x - y =3 solve using linear combination