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These are all properties of waves and their definitions are useful to remember for exams. It can also be helpful to draw diagrams of each to help you to remember the difference. On the diagram it is us...
Firstly, to expand an equation like this, you must multiply the brackets by the number outside of the brackets. Make sure that you multiply every number inside the bracket by the number directly outsid...
Tonality describes what key a piece is in or what tonal relationships are used. When asked to talk about tonality you should discuss whether the key is major or minor and the different modulations used...
Eq1: 3x + 4y = 17
Eq2: 4x + y = 14
Eq2 x 4: 16x + 4y = 56
Subtract Eq1 from this to isolate x: 16x + 4y - 3x - 4y = 56 - 17
Simplify: 13x = 39
The heart is known as a double pump becasue each half pumps blood around a different circulation system. The right side pumps blood to the lungs, while the left side pumps blood around the body.
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