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What is is a line?
Lines of Longitude are imaginary lines that run from the North Pole to the South Pole. The main line of longitude, the Prime Meridian (zero longitude), passes through the Greenwich Observatory, London, England.
What mineral has a cleavage that goes in 90 degree angles in three directions?
Rock salt.
The number pi goes on forever with no repeating pattern therefore its irrational?
Correct -
Does a ray have two endpoints?
A ray only has one endpoint, and looks like this:#--------------->where the # is an endpoint.#\\\\Vcould also roughly represent a ray. A ray just has an end point and goes on forever in one direction, like if you took a line and cut one end of it off. A ray could be drawn through any two points or any number of co linear points.
Is irrational mean negative numbers?
No. An irrational number has a whole number, followed by a decimal, which has no repeating pattern to it. For example, Pi: 3.14159265358979...... it goes on forever, with no pattern. unlike 5 and one-third: 5.33333333333333.... it goes on forever, but there is a pattern to it. or 4.12121212121212
