Tutor profile: Christian M.
Subject: Mechanical Engineering
What do Mechanical engineers do? (Field is too broad for just one question besides this general one)
Mechanical engineers design power-producing machines, such as electric generators, internal combustion engines, and steam and gas turbines, as well as power-using machines, such as refrigeration and air-conditioning systems. Mechanical engineers design other machines inside buildings, such as elevators and escalators.
Can a fire have a shadow?
Yes, you can create a shadow with fire, but not the way you would think. A shadow is formed anytime a light photon is blocked or redirected so a fire can TECHNICALLY make a shadow.
Solve the inequality: -3x + 4 < -8
x > 4
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