Fibre optic cables, which mean in broadband and sometimes long distance telephone calls (I think) hope this helps!
Reflection: looking in a mirror Refraction: How a pond looks shallower when it is full of water than when it's empty.
Believe it or not, school is a real life situation. If you are using it in school it real life for you.
Any situation numbers are used.
they aren't used in real life, not unless you need them in a situation were you would need to use them.
it is used in real life situation to fin the height of thing and in math you use it to find the length of one of the sides.
Quadratic functions will be used in chemistry in real life. Quadratic equations are used to solve equilibrium problems and determine the amount of reactants in a mixture that will react and the concentrations of products that will be form.
Biuret reagent test in a practical situation tests for lipids. Biuret is used in food agents for protein amino acid chains.
Proportions are used in real life to determine prices of things.
Refraction of light allows for the change of appearance of an object
Its used when the light is transmitted out of the light source.. Genius
Most geometry is used in real life situations. Logic can determine which outcomes are and are not possible. In geometry negative answers are posible, but if the problem is dealing with a real life situation, their shouldn't be used. This can determine that a mistake has been made in the calculation of the answer or their is an unfound positive answer along with the negative answer.
If you are in school and are studying trig then you are using trig in real life.