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Title: Cambridge stage 9 math notes
Description: All the important key terms are noted down
Description: All the important key terms are noted down
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Math
5
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1 - Circumference and area of a circle
C = 2πr
A = πr2
7
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3 - Large and small units
Tera - 1012
Giga - 109
Mega - 106
Kilo - 103
Hecto - 102
Deca - 101
Deci - 10-1
Centi - 10-2
Milli - 10-3
Micro - 10-6
Nano - 10-9
Pico - 10-12
Note: When going DOWN this list, you multiply by 10, and when going UP this
list, you divide by 10
...
9
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9
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198
9
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205)
Function - you have to have x (input), y (output), and the arithmetic operations
(refer pg
...
1 - Functions
Find the fixed amount (y-intercept) and the increment (slope) to write the equation
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2 - Plotting graphs
Use linear functions to plot a table of values, and then graph
...
3 - Gradient and intercept
Rise/run = Gradient
Rise - increase in y-value
Run - increase in x-value
10
...
12
...
Probability = Number of specific occurences/Total occurrences
12
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12
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12
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1 - Bearings
Bearings
1
...
Angles should be in 3 digit format (ex: 060, 240)
3
...
5
...
If they say find the bearing
of C from D, you should always measure at the point that is mentioned last,
in this case D
...
13
...
To find the point p/q th along the line, you must solve:
[(a-x) * p/q] + x → x coordinate of answer
[(b-y) * p/q] + y → y coordinate of answer
13
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13
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To find the centre of enlargement when the image is given, you must connect the
corresponding points together using a line and find the point of intersection
...
Title: Cambridge stage 9 math notes
Description: All the important key terms are noted down
Description: All the important key terms are noted down