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Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by law enforcement and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1]
The Florida Statute 775.087, known as the 10-20-Life law, is a mandatory minimum sentencing law in the U.S. state of Florida. The law concerns the use of a firearm during the commission of a forcible felony .
10-20 Denotes location, as in identifying one's location ("My 20 is on Main Street and First"), asking the receiver what their current location or immediate destination is ("What's your 20?"), or inquiring about the location of a third person ("OK, people, I need a 20 on Little Timmy and fast").
The 10–20 system or International 10–20 system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG exam, polysomnograph sleep study, or voluntary lab research.
420, 4:20 or 4/20 (pronounced four-twenty) is cannabis culture slang for marijuana and hashish consumption, especially smoking around the time 4:20 p.m. (16:20). It also refers to cannabis -oriented celebrations that take place annually on April 20 (4/20 in U.S. date form).
In mathematical writing, the less-than sign is typically placed between two values being compared and signifies that the first number is less than the second number. Examples of typical usage include 1⁄2 < 1 and −2 < 0.
A power of 10 is any of the integer powers of the number ten; in other words, ten multiplied by itself a certain number of times (when the power is a positive integer). By definition, the number one is a power (the zeroth power) of ten. The first few non-negative powers of ten are: 1, 10, 100, 1,000, 10,000, 100,000, 1,000,000, 10,000,000...
A vigesimal (/ v ɪ ˈ dʒ ɛ s ɪ m əl / vij-ESS-im-əl) or base-20 (base-score) numeral system is based on twenty (in the same way in which the decimal numeral system is based on ten). Vigesimal is derived from the Latin adjective vicesimus, meaning 'twentieth'.
In mathematical writing, the greater-than sign is typically placed between two values being compared and signifies that the first number is greater than the second number. Examples of typical usage include 1.5 > 1 and 1 > −2. The less-than sign and greater-than sign always "point" to the smaller number.
20 is the length of a side of the fifth smallest right triangle that forms a primitive Pythagorean triple (20, 21, 29). It is the third tetrahedral number. In decimal, 20 is the smallest non-trivial neon number equal to the sum of its digits when raised to the thirteenth power (20 13 = 8192 × 10 13). [citation needed] Almost integers