Elements
x and y must both be positive.
No, collinear refers to two different points that exist on a single line. Parallel means that 2 lines exist on the same plane, and will never intersect, no matter how far they are extended.
There are no benefits in doing something that cannot be done. The standard normal distribution is not transformed to the standard distribution because the latter does not exist.
I believe that such an object cannot exist in normal 3-d space. If there are 6 vertices, the maximum number of edges is 12.
For a normal die it's 21. That's assuming six sides and numbers up to 6, but other forms exist.
tell whether each fraction is in simplest form. if not, write it in simplest form, tell whether each fraction is in simplest form. if not, write it in simplest form,
This question is subjective. That would probably be a single photon. Although photon is energy, due to the mass-energy equivalence principle, you can consider a photon to be matter. It is affected by gravity. An electron is also a fundamental particle that can be easily produced in the lab. It has a reast mass (and a negative charge).
It is not available under normal conditions.
Nitrogen is a gas at room temperature and pressure.
Most elements exist in the state of matter known as solids at room temperature and pressure. Some elements can also exist as liquids or gases depending on the conditions.
It is not available under normal conditions.
All of the metals can exist as solids, liquids or gases it just depends on the temperature and pressure. Mercury with its low melting point of -35 0C is a liquid under normal conditions and has a significant vapor pressure at relatively low temperatures.
Dark matter is matter of an unknown type. It is known to exist, due to its gravitational influence, but it is not known what it is made of. There is at least 5 times as much dark matter than "normal" matter.
Yes, matter can exist in three states: solid, liquid, and gas. These states depend on the arrangement and movement of the atoms or molecules that make up the material.
The simplest level at which life may exist is in a cell.
The simplest level at which life may exist is in a cell.
Curium is a synthetic radioactive element and could exist in various states of matter depending on its specific form. However, under standard conditions, curium is most likely to exist in a solid state.