Maths - equations

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Algebra

System of Equations

9th

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11 Terms

1
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What is the formulae for speed?
speed= distance/time
2
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What is the formulae for density?
density=mass/volume
3
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What is the formulae for pressure?
pressure=force/area
4
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What is the formulae for volume of a cylinder
h x pi x radius\*2
5
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What is the formulae for area of a cylinder?
2 x pi x radius\*2 + 2 x pi x radius x height
6
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How do you work out the area of a sector?
area of sector/360 x pi x radius\*2
7
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How do you work out the length of an arc?
angle of arc/ 360 x pi x diameter
8
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How do you work out the perimeter of a sector?
length of arc + 2 x radius
9
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What is the equation for a line graph?
Y=mx + c
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what does the mx equal?
The gradient rise/run
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what does the c equal?
the y intercept