cause they are important
You don't!
Its simply as this. The only way you would use right triangles in real life if you would want to become a math teacher.
Boats use them to navigate.
you doint
Buoyancy is used for many life examples, submarines, swimmers would like to know about it, and the army would use it. Those are some life examples that of real life that buoyancy would be used! Hope this helps!
NO where!
Relationships
When you owe money
Same fighting skill Batman would use.
you can use it house or at the mall or anywhere
Any time you make a phone call.
As a passenger on a train or when climbing a ladder.
they aren't used in real life, not unless you need them in a situation were you would need to use them.
Yes, he does, most of the time.
cartesian coordinates can be used in measuring distance and direction in relation to a systems to rigid bodies. you could also use cartesian while graphing. also u could use it when you're selling. The best example of coordinates in everyday life is use of longitude and latitude on globe. Each unique location on the earth has a unique combination of longitude and latitude. Global positioning system used by radio taxi operators also uses x,y coordinates to find exact location of a vehicle.
If by "real life" you include the physical world, then you express the spontaneous decay of radioactivity in a sample with a logarithmic equation.
School is part of real life... if you are using equations in school that is real.