|Half-life|| The amount of time required for a quantity to fall to half its value as measured at the beginning of the time period.
The time taken for the radioactivity of a specified isotope to fall to half its original value.
|This term is frequently used in problems with exponential decay.|
|Half-plane||One half of a plane
On a plane that is divided by a line, each side of the line is a half-plane,
|Hemisphere||One half of a sphere
On the globe, the northern hemisphere is the top half of the world.
|Histogram||A bar graph that shows the frequency of data in intervals of equal size.
The height of each bar shows the number of items in each interval
|Hyperbola||A set of points that are equidistant from a foci.
The graph looks a lot like two parabolas on their side.
|Hypotenuse||In a right triangle, the side opposite the right angle - the longest side in a right triangle|
|Hypothesis||In a conditional statement (if _ then_), the statement that immediately follows the if.||The assumption you start with|
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Last Updated: 6/26/2014
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