Match the terms with the definitions.
1.
a mathematical expression containing numerals or variables or both to indicate products or quotients.
2.
the four distinct sections of the coordinate plane created by the x- and y-axes.
3.
a comparison of two quantities by division.
4.
a way of expressing very large or very small numbers, by writing the number as the product of a number between 1 and 10 and a power of 10.
5.
a number that can be written as the ratio of two integers, the denominator not being zero.

a.
quadrant
b.
ratio
c.
rational number
d.
scientific notation
e.

1. A mathematical expression containing numerals or variables or both to indicate products or quotients.=Expression

2.The four distinct sections of the coordinate plane created by the x- and y-axes.=Quadrant

3.A comparison of two quantities by division.=Ratio

4.A way of expressing very large or very small numbers, by writing the number as the product of a number between 1 and 10 and a power of 10. =Scientific notation

5.A number that can be written as the ratio of two integers, the denominator not being zero. =Rational number

Explanation:

a lot

explanation:

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."