Examlex
The passing star hypothesis has been used successful to explain the origin of roughly half the extrasolar planets discovered thus far.
Method of Substitution
A method involving the resolution of equation systems through isolating a variable in one equation and then inserting that solution into another equation.
System of Equations
A set of equations with the same variables, where the solution must satisfy all equations simultaneously.
Hyperbola
A type of smooth curve lying in a plane, consisting of two branches, which are mirror images of each other, and which open away from each other.
Center and Vertices
Key elements in geometry, specifically for ellipses and hyperbolas, where the center is the midpoint of the vertices (the major points).
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Q53: In degenerate matter<br>A) pressure depends only on