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Maths Revision- end of year test
Fichas del conjunto (11)
- 1When do you use trigonometry? (sOhcAhtOa)In right angled triangles where an interior angle is involved (not the 90 degree one) and you know 2 measurements.
- 2When do you use Pythagoras? (a squared + b squared = c squared)When no angles are involved, trying to find a length.
- 3In Pythagoras where is c?Opposite the right angle.
- 4When is the sine rule used? (a/sinA = b/sinB = c/sinC)On a non-right angled triangle to find angles or sides.
- 5When is the cosine rule used?In a non-right angled triangle when the is no matching pair.
- 6What is a good way to solve a quadratic equation? (x squared+x+n=0)The quadratic formula in the front of paper.
- 7In a histogram what is the width and how do you get it?The class width = the range between each individual variable category ie-'height 0<20' would be the difference between 0 and 20.
- 8In a histogram what is the height and how do you calculate it?frequency density = freq density/class width
- 9In a histogram how do you find out the mean?Total(midpoint x freq)/total freq
- 10How do you solve an algebraic equation graphically?1) Plot
2) state where they cross - 11What is 'BIDMAS'?Calculate things in the order of:
Brackets, Indices(powers), Division, Multiplication, Addition, Subtraction.
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- Maths revision for year 10 end of year test
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