Mock Revision Flashcards
What do you do when you times fractions together
Times the tops and times the bottoms
What is the formula for density, mass and volume
Density=mass/volume
What does of mean in maths
Times
What does it mean if the question looks like this
5.7 x 10 power of 6
Decimal point moves 6 times
In quadratics when the middle number is negative and the last number is positive will both factors become positive or negative
Negative
What does square root equal to
Power of a half
How do you write probabilities
As fractions
In tree diagrams what do you do at the end
Multiply across and add at the end
In probability what can you do to simplify
Look if the numerator and denominator have a common factor and divide by that or if both even keep dividing by 2
What would the number be if there water 3 recurring decimals
1000
If there was only 1 it would be 10
What is the formula of the sum of the first 100 terms
Sn=n/2 [2a+(n-1)d]- can be found in formula sheet
N=number of terns
d=common difference
a=first term
What is the formula for the LSF (length scale factor)
Bigger length
—————
Smaller length
What is the formula for ASF (area scale factor)
LSF squared
What is the formula for VSF (volume scale factor)
LSF cubed
What are histograms
Bar charts with different widths of base (city skyline)
