Maths Skills Flashcards
1
Q
Mean equation
A
n^1+n^2+n^3…n^
———————-
n
2
Q
Circumference of circle
A
Pi x d
3
Q
Area of circle
A
Pi x r^2
4
Q
Magnification
A
IAM triangle
/ Image size \
/ % % % % % \ Actual size ——x——Magnification
5
Q
Percentage change
A
New quantity - original quantity
—————————————
Original quantity
6
Q
Rate
A
Changing quantity
————————
Time taken
7
Q
SA:V
A
Divide the surface area by the volume as long as it’s a whole number
8
Q
Percentage error
A
2 x uncertainty
—————— x 100
value given
9
Q
Percentage yield
A
Actual amount
———————— x 100
Theoretical amount
10
Q
Cardiac output
A
Heart rate x stroke volume
11
Q
Efficiency
A
Biomass transfer
——————— x 100
Biomass intake
12
Q
Rf
A
Distance moved by solute
————————————
Distance moved by solvent
13
Q
Standard deviation overlap
A
If the SD overlaps, it shows that it is not a significant difference
