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A scalar quantity is one that has a magnitude (size) only, and no associated direction in which that size 'points'. A good example of a scalar is temperature, because temperature has a size (for example 2...
The easiest way to solve a simultaneous equation is by the method of substitution. First of all, we take the first equation, and rearrange it so that it is in terms of y. Or, in other words, rearrange it ...
An infinitive is a verb that has not been changed and is in its original form, eg with an -re, -er or -ir ending, meaning “to …”. An infinitive is commonly found: As a second verb...
The ritornello form was one of the musical structures developed in the Baroque period. It is characterised by a recurring A section in between new sections of music, and is often described as 'ABACA', whe...
Expand the brackets:
(3z + 18) - (8z + 2)
Simplify:
16 - 5z
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