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If you download an unknown email attachment and open it on your computer, it could install a virus on your system and you would have a problem.
thre could be 100,000,000,000,000,000,000,00,000,000 unknown animals
change your oil as many times as it takes to stop your oil from turning milky. if after four oil changes it doesn't fix the problem then you may have an antifreeze leak going into your oil, if that's the case hope it's a head gasket seal, otherwise it could be a crack in the cilinder
Y is simply a variable. If you have an unknown side you could call it y just like you could call it any letter. X is a popular variable. There is no difference between X and Y.
unknown
This is unknown, but it is believed that they could speak.
This is unknown, but it is believed that they could speak.
A variable is something that represents, or stands in for something unknown, for example a number. You could be given the math problem 6 + x = 9, in which you would have to figure out what the variable is, which, in this situation, is x.
right under the brake cilinder there should be a plastic eye you could break with a screwdriver and that's it, it should come out right under your feet.
unknown
Theta is most often used to represent unknown angles, especially in the study of trigonometry. Theta represents an angle in degrees, but not in radians. --------------------------------------- Theta (θ) is a Greek letter, typically denoting an unknown angle. Depending on the context of the problem, it could be in degrees or radians.
the product that china trade that was unknown to the west was silk