Equations Flashcards
1
Q
What is the formula for compound growth and decay?
A
N=N(multiplier)
2
Q
What is the formula for the area of a trapezium?
A
1/2(a+b)Hv
3
Q
Pythagoras’ theorem
A
A2+ B2=C2
4
Q
What is the sine rule?
A
A/sin A =b/sinB =c/sinC
5
Q
Area of a triangle?
A
1/2ab sinC
Or
1/2 x base x height
6
Q
Trigonometry ratios?
A
Sin x= O/H
Cos x=A/H
Tan x= O/A
7
Q
Formula for the cosine rule?
A
A2=b2 +c2 -2bc cosA
8
Q
Formula for speed
A
Distance/time
9
Q
Formula for density
A
Mass/volume
10
Q
Formula for pressure
A
Force/area
