# maths

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30cm (foot)?
1 foot
1 of 18
1kg (pounds)?
2.2 pounds
2 of 18
4.5 litres (gallon)?
1 gallon
3 of 18
1 litre (pints)?
1.75 pints
4 of 18
whats the opposite, hypotenuse and adjacent?
h= the longest side, opposite right angle . a= between angle and right angle. o=doesnt help form the given angle
5 of 18
SOHCAHTOA, what does this mean?
sin= o/h, cos= a/h , tan=o/a
6 of 18
equation to find missing angle using tan?
tan-1(o/a)
7 of 18
equation to find missing side using tan? with given angle of 4o degrees
tan40degrees= o/a
8 of 18
whats the volume of a prism?
area of cross section x height
9 of 18
area of a circle?
pie r squared
10 of 18
whats the volume of a pyramid?
area of base x height/ 3
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whats the volume of a sphere?
4x pie x r cubed / 3
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whats the probability of an event happening?
number of wanted outcomes/ total number of outcomes
13 of 18
for mutually exclusive events we use what law? what does the law state?
OR law and it states we add the probabilities
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for independent events we use what law? what does this law state?
AND law and it states that we can multiply the probabilities because the outcome of one doesn't affect the outcome of the other.
15 of 18
we can workout probability by what diagrams?
tree diagrams
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For dependent diagrams its depends so what happens to the fraction in the diagram?
it becomes less if they don't replace the object
17 of 18
Experimental probability, what equation do we use?
relative frq= number of times that event occurs / number of trials (freq added)
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## Other cards in this set

1kg (pounds)?

2.2 pounds

### Card 3

#### Front

4.5 litres (gallon)?

1 litre (pints)?

### Card 5

#### Front

whats the opposite, hypotenuse and adjacent?